Дисертації з теми "Residential system"
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1
Lang, Ming-Shuang. "Remote Residential Control System." Thesis, KTH, Mikroelektronik och Informationsteknik, IMIT, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-93044.
Повний текст джерелаАнотація:
A remote residential control system enables home users to remotely manage devices at their homes. These devices may include energy management, security surveillance, household appliances, consumer electronics, etc. This system involves technologies in home automation, home networking, and interfacing a home network with external networks. However, lacking a single standard poses a big challenge to the design of such a system. This thesis proposed three methods of turning an IP Set-Top Box into a remote residential control platform. Additionally, future trends are discussed. Various technologies in the fields mentioned above are also examined.Ett system för fjärrstyrning av intelligenta hem (remote residential control system) är ett system som möjliggör för hemanvändare att på distans övervaka och styra utrustning i hemmet. Denna utrustning kan vara energiövervakning, säkerhetsutrustning, hushållsapparater, konsumentelektronik, etc. Det saknas dock en gemensam standard, vilket gör det till en stor utmaning att konstruera ett sådant system. I detta examensarbete föreslås tre sätt att göra en set-top box till en plattform för fjärrstyrning av intelligenta hem. Framtida trender diskuteras också. Olika tekniker inom nämnda områden undersöks[.]
2
Nistor, Silviu. "Residential demand response in the power system." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/74320/.
Повний текст джерелаАнотація:
Demand response (DR) is able to contribute to the secure and efficient operation of power systems. The implications of adopting the residential DR through smart appliances (SAs) were investigated from the perspective of three actors: customer, distribution network operator, and transmission system operator. The types of SAs considered in the investigation are: washing machines, dish washers and tumble dryers. A mathematical model was developed to describe the operation of SAs including load management features: start delay and cycle interruption. The optimal scheduling of SAs considering user behaviour and multiple-rates electricity tariffs was investigated using the optimisation software CPLEX. Further, the financial benefits for SA users subscribing to multiple-rates electricity tariffs were investigated. The savings are mainly a result of the appliances’ load shifting feature and are sensitive to user settings. The savings averaged at 7% of the household annual electricity bill. For households in the United Kingdom, the SAs had a payback period of less than three years and a net present value of up to £206. Furthermore, the operation of distribution networks with different uptake rates of SAs was investigated. A simulation containing a load modelling method and a network model determines, through time series power flow analysis, the network branch loading and voltage profile. The thermal ratings and voltage limits were exceeded on the LV network due to deterioration in the temporal diversity of the appliance utilisation. A regional controller for SAs was developed which effectively limited the network peak demand and voltage drop. A framework was introduced which enabled transmission system operators to access demand response from SAs in a timeframe suitable for operating reserve. A multiple time-step simulation was developed that assessed the load reduction from a number of households as a response to a reserve instruction. The instruction was modelled as a price increase with a short notification period. It was estimated that up to half of the current operating reserve requirements of Great Britain’s power system can be obtained with 20% uptake of SAs.
3
Trueblood, Christopher P. Halpin S. Mark. "Modeling a fuel cell system fo residential dwellings." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Spring/master's/TRUEBLOOD_CHRISTOPHER_30.pdf.
Повний текст джерела
4
Unruh, Cassie, Austin Johnson, and Lisa Nordman. "Residential Telemetry Applications for HVAC Control." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595643.
Повний текст джерелаАнотація:
ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, NevadaMuch of the energy consumed in developed countries is for residential heating and cooling. Substantial savings are possible if one can monitor the indoor environment at many locations, and then actively control the heating, ventilation and air conditioning (HVAC) system. This project uses a wireless sensor array and dedicated microcontroller system to control a residential HVAC system. A low data rate, ad-hoc network of sensors is deployed throughout a residence, with the data sent to a central controller. A graphical user interface allows the resident to monitor the system status, and to set parameters.
5
Paris, Deidre Eileen. "A residential satisfaction decision support system for affordable housing." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/23395.
Повний текст джерела
6
Fletcher, Serena. "Residential remote area power supply system monitoring and analysis." Thesis, Fletcher, Serena (1999) Residential remote area power supply system monitoring and analysis. Masters by Coursework thesis, Murdoch University, 1999. https://researchrepository.murdoch.edu.au/id/eprint/40932/.
Повний текст джерелаАнотація:
The objective of this thesis was to design, develop, test and install a monitoring system for a residential renewable energy remote area power supply (RAPS) system. In doing so, the aim was to address the lack of availability of reliable, accurate and continuously monitored data for residential remote area power supply (RAPS) systems. A comprehensive database of monitored data for renewable energy RAPS systems, such as the one monitored for this thesis, will provide a basis for improving the understanding of the operation of these systems. This information may prove useful to system designers, equipment suppliers, system owners, potential system buyers, researchers, the Government and the public in general.
The project will also provide feedback to the Office of Energy on the performance of a selected renewable energy RAPS system under the Wes tern Australian Government's Renewable Energy RAPS Rebate Scheme, in particular, the contribution of the renewable energy component of the system.
The data collected in monitoring projects, such as this one, can be used to validate the accuracy of computer simulation programs. The lack of reliable monitored data has inhibited the validation of such simulation programs under field conditions. The aim in this thesis was to use the data collected to validate the accuracy of the RAPSIM simulation program.
The residential hybrid PV RAPS system at Mundabullangana Station, Port Hedland, was selected for monitoring for a period of two years. This thesis details the design, development, testing and installation of a monitoring system for the RAPS system. At the time of submission of this thesis, approximately six weeks of high quality data was obtained.
The monitored data allowed the RAPS system operational performance to be analysed in detail, and to be verified against the estimated performance provided by the designers of the system. The preliminary monitored results showed a close agreement with the estimated values.
The data was also used to validate the RAPSIM simulation program. The results indicated a good correlation between the simulated and monitored daily profiles, and a reasonable to good comparison between the average daily system parameters.
7
POSEDLY, PAUL EDWARD III. "Modeling and Analysis of Photovoltaic Generation and Storage Systems for Residential Use." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1213715332.
Повний текст джерела
8
Kalantiz, Nikolaos. "Thermo-economic modelling of micro-cogeneration systems : system design for sustainable power decentralization by multi-physics system modelling and micro-cogeneration systems performance analysis for the UK domestic housing sector." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/14406.
Повний текст джерелаАнотація:
Micro-cogeneration is one of the technologies promoted as a response to the global call for the reduction of carbon emissions. Due to its recent application in the residential sector, the implications of its usage have not yet been fully explored, while at the same time, the available simulation tools are not designed for conducting research that focuses on the study of this technology. This thesis develops a virtual prototyping environment, using a dynamic multi-physics simulation tool. The model based procedure in its current form focuses on ICE based micro-CHP systems. In the process of developing the models, new approaches on general system, engine, heat exchanger, and dwelling thermal modelling are being introduced to cater for the special nature of the subject. The developed software is a unique modular simulation tool platform linking a number of independent energy generation systems, and presents a new approach in the study and design of the multi node distributed energy system (DES) with the option of further development into a real-time residential energy management system capable of reducing fuel consumption and CO2 emissions in the domestic sector. In the final chapters, the developed software is used to simulate various internal combustion engine based micro-CHP configurations in order to conclude on the system design characteristics, as well as the conditions, necessary to achieve a high technical, economic and environmental performance in the UK residential sector with the purpose of making micro- CHP a viable alternative to the conventional means of heat & power supply.
9
Kalantzis, Nikolaos. "Thermo-Economic Modelling of Micro-Cogeneration Systems System Design for Sustainable Power Decentralization by Multi-Physics System Modelling and Micro-Cogeneration Systems Performance Analysis for the UK Domestic Housing Sector." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/14406.
Повний текст джерелаАнотація:
Micro-cogeneration is one of the technologies promoted as a response to the
global call for the reduction of carbon emissions. Due to its recent application
in the residential sector, the implications of its usage have not yet been fully
explored, while at the same time, the available simulation tools are not
designed for conducting research that focuses on the study of this
technology.
This thesis develops a virtual prototyping environment, using a dynamic
multi-physics simulation tool. The model based procedure in its current form
focuses on ICE based micro-CHP systems. In the process of developing the
models, new approaches on general system, engine, heat exchanger, and
dwelling thermal modelling are being introduced to cater for the special
nature of the subject. The developed software is a unique modular simulation
tool platform linking a number of independent energy generation systems,
and presents a new approach in the study and design of the multi node
distributed energy system (DES) with the option of further development into a
real-time residential energy management system capable of reducing fuel
consumption and CO2 emissions in the domestic sector.
In the final chapters, the developed software is used to simulate various
internal combustion engine based micro-CHP configurations in order to
conclude on the system design characteristics, as well as the conditions, necessary to achieve a high technical, economic and environmental
performance in the UK residential sector with the purpose of making micro-
CHP a viable alternative to the conventional means of heat & power supply.
10
Kleven, Magnus Hustad. "Analysis of Grey-water Heat Recovery System in Residential Buildings." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19399.
Повний текст джерелаАнотація:
Annual operating costs for buildings are a substantial cost in a lifetime. It is therefore of interest to try and reduce these costs. A large fraction of this cost today as the buildings become more and more energy efficient is the cost of hot tap water. The study in this report looks into the potential for energy savings from grey wastewater. It is here looked at the amount of energy which can be recovered from hot water leaving the building and reused for pre heating of hot tap water and heating of building. The unit which would recover this energy is referred to as the grey-water heat recovery unit in this report. A residential building with three floors where each floor has one washing machine, one shower and one dishwasher has been as the case building for the report. The total living area of the building is 450 m2. In the case building used in this report as much as 17.1 % of the total used energy goes to heating of hot tap water. By installing a heat recovery system which can recover some of the energy stored in the used hot water which leaves the building, this this could be reduced to 10.9 % of the total used energy according to simulations done in SIMIEN. There are also possibilities of using this energy for heating of the building as well as pre heating of hot tap water. There are a few different solutions for implementing a grey-water heat recovery unit which could give different energy recovery between 2 716 kWh/year to 3 759 kWh/year. The best solution would be to connect the grey-water heat recovery unit to pre-heating of hot tap water, heating of the building as well as installing an accumulation tank to store recovered energy in. The most simple solution which would give the lowest amount of recovered energy would be to just connect the grey-water heat recovery unit to pre heating of hot tap water. In this report two different simulation programs have been used, EnergyPlus and SIMIEN, to find what impact the energy reduction would have on the building and to see if the simulations would correspond to the theoretical estimates done in this report. The theoretical estimates based on equations for heat recovery and measured data for energy use in the case building gave a little bit better results than the simulated results for the same case building. Although there is a difference both gave a positive indication that a heat recovery unit would not only reduce the energy consumption but also reduce the annual operating cost of a building. The investment cost for a heat recovery system could be a bit large for small buildings compared to the annual savings but for larger buildings the investment cost could be substantially higher. Regarding the energy as much as 87.7 % of the energy stored in the grey-water could be recovered for a system with an accumulation tank and a connection to the buildings heating system. For a system without the accumulation tank and district heating as the energy source it would have a theoretical efficiency of 76.7 % and a simulated efficiency of 63.3 % when simulated in EnergyPlus.
11
Dentz, Jordan Lewis. "The design of a panelized roof system for residential construction." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/65673.
Повний текст джерелаАнотація:
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1991.Includes bibliographical references (p. 158-163).
The cost of housing in the U.S. continues to rise faster than household income. Innovative building materials and construction technologies have the potential to reduce housing construction costs. One strategy to do this is componentization. There is a longstanding trend towards the increased use of components in U.S. residential construction. One such type of component is the composite building panel, used for walls, roofs and floors. Presently the types of composite panels used in residential construction include pre-framed walls of standard construction and, more innovatively, structural foam core panels with wood or wood composite faces. This thesis focuses on the design of a panelized roofing system for residential construction. The roof was chosen for various reasons. It includes some of the most complicated geometrical and structural challenges. It is often the most difficult area of the house to frame conventionally. Its construction is a crucial step in getting the house weather tight. For these reasons and others builders have identified it as a prime target for innovation. The design of the panelized roof system is illustrated as a tree of decisions. The path traveled down this tree led to a ribbed panel spanning from eave to ridge. A design selection method developed by Stuart Pugh was used to design the connection details of the system. The interdisciplinary design process used to design the roof system is examined and evaluated in light of the results it yielded. Mock-ups, models and a full scale proof-of-concept structure were built. These constructions were used as learning tools during design and to demonstrate and evaluate the performance of the roof system design.
by Jordan Lewis Dentz.
M.S.
12
Rotsios, Christopher. "Analysis and Design of An Off-Grid Residential Power System." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2214.
Повний текст джерелаАнотація:
This thesis aims to provide a recommended power system design for optimal efficiency, reliability, and cost in off-grid applications. The power system examined in this project is a residence in an off-grid community called Quail Springs that generates its energy from roof mounted solar panels. The existing system was analyzed to see what equipment can remain, what needs to be upsized, and what needs to be added to the system. Two power systems are considered for the residence: a fully AC power system and a hybrid AC/DC power system. Simulations were run in PSCAD to compare the efficiencies of the two proposed systems at varying load. The results of the simulations showed the hybrid power system to be generally less efficient when supplying AC and DC loads, but greater than 5% more efficient when only supplying DC load. Although the hybrid AC/DC system is approximately 70% more expensive, it is still the final recommended design due to potential efficiency gains and in an effort to provide educational opportunities that may lead to further efficiency gains in future hybrid AC/DC power systems.
13
Tichagwa, Anesu. "Micro combined heat and power management for a residential system." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/16914.
Повний текст джерелаАнотація:
Fuel cell technology has reached commercialisation of fuel cells in application areas such as residential power systems, automobile engines and driving of industrial manufacturing processes. This thesis gives an overview of the current state of fuel cell-based technology research and development, introduces a μCHP system sizing strategy and proposes methods of improving on the implementation of residential fuel cell-based μCHP technology. The three methods of controlling residential μCHP systems discussed in this thesis project are heat-led, electricity-led and cost-minimizing control. Simulations of a typical HT PEMFC -based residential μCHP unit are conducted using these control strategies. A model of a residential μCHP system is formulated upon which these simulated tests are conducted. From these simulations, equations to model the costs of running a fuel-cell based μCHP system are proposed. Having developed equations to quantify the running costs of the proposed μCHP system a method for determining the ideal size of a μCHP system is developed. A sizing technique based on industrial CHP sizing practices is developed in which the running costs and capital costs of the residential μCHP system are utilised to determine the optimal size of the system. Residential thermal and electrical load profile data of a typical Danish household are used. Having simulated the system a practical implementation of the power electronics interface between the fuel cell and household grid is done. Two topologies are proposed for the power electronics interface a three-stage topology and a two-stage topology. The efficiencies of the overall systems of both topologies are determined. The system is connected to the grid so the output of each system is phase-shifted and DC injection, harmonic distortion, voltage range and frequency range are determined for both systems to determine compliance with grid standards. Deviations between simulated results and experimental results are recorded and discussed and relevant conclusions are drawn from these.
14
Thirulokachandran, Kishore. "A knowledge-based cost estimating system for manufactured residential housing." Master's thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-01262010-020224/.
Повний текст джерела
15
Richards, Gregory L. "Metering Secondary Water in Residential Irrigation Systems." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/391.
Повний текст джерелаАнотація:
The use of residential secondary or dual water systems for irrigation purposes is common in the western United States where water supplies are scarce. While the use of non-potable water in secondary systems has successfully curtailed demands on potable systems, experience has shown that overall water use actually increases with the introduction of a secondary supply because users commonly pay a fixed fee and have unlimited water use. While water metering and billing effectively reduce water use, there are two main obstacles to the widespread installation of meters in secondary systems.
The first obstacle is that standard residential water meters do not normally function in debris-filled secondary water. Metering mechanisms can clog or be degraded by suspended debris of both organic and inorganic nature in the water. By way of innovative meter designs or filtration, a few secondary systems have had success metering their secondary water. Other systems have experimented with possible debris-resistant meters but have had little success.
In addition to the physical limitations of water meters, secondary systems face economic obstacles from the increased expense of metering. Since secondary water is intended to be an inexpensive alternative to potable water for outdoor irrigation, any cost increase due to the expense of meters, filtration, meter reading, etc., interferes with the main objective of a secondary system. A system-specific economic analysis is necessary to determine the financial feasibility of the implementation of metering in any secondary system.
The objective of this research is to identify feasible ways for metering secondary water systems. An overall analysis is made of the performance, benefits, and drawbacks of each technological approach. Approximate costs and design requirements of these technologies are identified, thereby allowing water suppliers to determine the economic feasibility of metering. In addition, other design precautions for implementing secondary metering and investigations of residential meter performance in secondary systems using filtration are discussed.
16
Wichser, Corinne. "System Performance Comparison of Residential Combination Air and Water Heating Systems in Cold Weather Climates." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-166119.
Повний текст джерелаАнотація:
The state of Minnesota has an extreme weather climate, with cold winters and humid hot summers. In a residential building, space and water heating account for about 61% of the total energy consumption. A combination heating system is an innovative idea that integrates the space heating and water heating systems as one unit to achieve improved performance and efficiency over two independent systems. This analysis will focus on air for space heating, as it is a common system used in the applicable location. Benefits of the system include a smaller footprint, simplified installation and maintenance, a single fuel input and exhaust, and increased efficiency. More testing and research is required, however, to make them an economically feasible option. Twenty combination units of varying designs and manufacturers are installed and monitored in qualifying households throughout the Hennepin County area in Minnesota for about eight months to determine the efficiency and performance of these relatively new systems. These results will be extrapolated to a typical year with the goal to define the ideal combination system type by comparing the calculated system performance to the original existing system performance at each site, the load stress on the system (low, average, and high), the performance of the system on a heating design day, the federal regulation criterion for standard systems, and the different combination systems being researched in this study. It is determined that the tankless type 2, with a 7.5 liter (2-gallon) reserve storage tank, is the most efficient combination system during a typical year in Minnesota. Better insulation is required for storage tanks to reduce stand-by losses. System installation guidelines and design packages will improve performance and maintenance issues. The combination system could be improved by implementing other design strategies such as segregating the space heating and domestic hot water loops or introducing renewable energy to replace the natural gas fuel input.Staten Minnesota har extrema väderförhållande, med kalla vintrar och varma fuktiga somrar. I en bostadsbyggnad, energi för uppvärmning och varmvatten står för ungefär 61% av totala energianvändningen. Ett kombi-system för uppvärmning är en innovativ idé som integrerar de båda tidigare nämnda funktionerna i samma enhet, som samtidigt har förbättrad prestanda och effektivitet jämfört med två separata system. Föreliggande arbete fokuserar på uppvärmning, då det är ett av de vanligaste system inom det geografiska området som studeras. Fördelar med det föreslagna systemet är att det är mindre platskrävande, enklare installation, enklare underhåll, enbart en bränslekälla och rökgaskanal, samt ökad verkningsgrad. För att säkerställa systemets ekonomiska utfall behövs dock mer prover och forskning. 20 olika relativt nya på marknaden kombisystem med olika konfigurationer och från olika tillverkare har installerats och mätts på under åtta månader i ett antal hushåll i Hennepin County, Minnesota, för att bestämma dess verkningsgrad och prestanda. De erhållna resultaten extrapoleras till ett helt år för att identifiera den mest gynnsamma systemkonfigurationen, genom att jämföra beräknade årseffektivitet med det ursprungliga systemet i respektive byggnad. Analysen inbegriper belastningsnivå (låg, medium, hög), prestanda för uppvärmning under designdag, och jämförelse med federala bestämmelser för standardsystem. Analyserna visar att system utan tank, typ 2, med en 7.5 liters reservtank, är den mest effektiva kombisystemet för ett typiskt år i Minnesota. Bättre isolering behövs för att minska stand-by-förluster från ackumulatortanken. Adekvata installationsriktlinjer kan förbättra prestanda och nödvändigt underhåll. Kombisystemet kan förbättras genom att även implementera ytterligare designstrategier, så som separata uppvärmnings- och varmvatten rörsystem samt att introducera förnybara bränslen istället för naturgas.
17
Sánchez, Herranz Daniel. "DESIGN OF A SOLAR WATER HEATING SYSTEM IN A RESIDENTIAL BUILDING." Thesis, University of Gävle, University of Gävle, Department of Technology and Built Environment, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-4957.
Повний текст джерела
18
McCormick, Michael J. (Michael James). "A panelized roof system for residential construction : development, application, and evaluation." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/68762.
Повний текст джерелаАнотація:
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1994.Includes bibliographical references (p. 205-209).
The challenge of providing affordable housing has long been an issue with which architects and builders have been struggling. In an effort to improve both the quality and the affordability of the housing stock that is being constructed today, the Innovative Housing Technologies Program at M.I.T. has proposed a panelized roof system for residential construction. Although the system had been 'developed conceptually and even applied to a proof-of-concept structure prior to the involvement of this author, much of the detailed analysis and investigation had been left undone. This thesis carefully examines the roof system in terms of its structural integrity and the ease of its installation. Utilizing basic structural analysis tools, and some more advanced techniques, including finite element modeling, the system has been thoroughly analyzed with regard to both gravity loads and lateral loads. Furthermore, the system has been installed on a complete house in Pittsburgh, providing the valuable insight of a real-world application. From this examination and experience, several design changes have been identified which will improve system performance during manufacturing, delivery, installation, and throughout the occupancy of the home. Each of these design proposals will be presented in this thesis. In addition, this investigation has also created an acute awareness of the system's capabilities and weaknesses. From this, a series of guidelines for the system's application have been prepared. These will be identified, and the implications that they have on the design of houses will be discussed.
by Michael J. McCormick.
M.S.
19
Beard, Thomas. "CFD modelling of hydrogen safety aspects for a residential refuelling system." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/25723.
Повний текст джерелаАнотація:
This work concerns the modelling of scenarios for a residential hydrogen refuelling system. Such a system is under construction within the Engineering Safe and Compact Hydrogen Energy Reserves (ESCHER) project. Non-reacting and reacting simulations are compared against experimental data before being applied to a residential garage scenario. The non-reacting simulations utilise natural ventilation, which utilises the natural buoyancy of hydrogen and vent locations to disperse flammable mixtures. This is favoured over mechanical ventilation, which could fail. The non-reacting work focuses on investigating the most suitable venting configuration for a release of hydrogen from a refuelling system located within a residential garage. Different vent configurations are examined initially before proceeding to take into account atmospheric conditions, wind, and the presence of a vehicle for the two best venting configurations. This is to determine the venting configuration that would diminish the accumulation of a flammable mixture, as well as dissipating the mixture quickest after the release has stopped. The modelling strategy utilised for this work is validated against two different sets of experimental data, prior to the investigation into residential garages. The predicted and experimental results show good agreement for the modelling procedure suggested. The reacting investigations are for both premixed and non-premixed combustion. The non-premixed combustion investigates the temperature distributions and as such the possible harm to people for such a scenario, compared against experimental data. The results show some over predictions of the temperatures. The premixed combustion investigates the potential overpressures that may occur if a homogeneous mixture was to form and ignite, within a residential garage. This work is preceded by a validation of the combustion model with the predicted results compared to data from The University of Sydney. The validation results show that the modelling strategy matches the peak overpressures accurately. The non-reacting studies show that having a lower vent opposite the release and an higher vent near the release produces the smallest flammable mixture as well as dissipating the mixture to the external surroundings quickest. The non-premixed reacting work shows good agreement with experimental results. The premixed reacting work shows that the garage would destruct with major consequences to people and surroundings. This work would be applicable to any potential usage of indoor refuelling for hydrogen vehicles, helping to determine a suitable configuration for mitigating hydrogen releases. It should be noted that all such work is geometrically dependent and as such the strategy proposed would be useful for investigating individual scenarios.
20
Naimavičienė, Jurga. "Intelligent knowledge and device based assisted residential environment." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080723_094440-35993.
Повний текст джерелаАнотація:
Environment through the application of the established Model of Intelligent Assisted Built Residential Environment (IABRE). This model is used to establish the Multi-criteria Decision Support System of Intelligent Assisted Built Residential Environment (MDSSIABRE), in which multi-criteria analysis and multi-criteria alternative design methods are used.
In order to reach this aim, the following tasks must be solved:
• Established models and intelligent systems are analysed in various countries. The experience of Lithuania and foreign countries is analysed in the establishment of ambient assisted living environment through the application of modern internet, intelligent and other technologies and innovations;
• A Model of Intelligent Assisted Built Residential Environment is estab-lished (MIABRE);
• The system of criteria is established, which describes IABRE in detail;
• Data base is established, which describes IABRE in detail;
• MDSSIABRE system is established on the basis of the Model of Intelli-gent Assisted Built Residential Environment;
• Practical realisation of the established IABRE system is performed.
The thesis is divided into four chapters including the conclusion’s chapter.
Chapter 1 analyses assisted residential environment, reviews the research on life quality and conditions in Lithuanian and abroad. It analyses the premises and the opportunities for creation of built and humanised environment. A review of current housing issues and housing development in... [to full text]The aim of the thesis is the evaluation and enhancement of the effectiveness of Intelligent Assisted Built Residential Pirmajame disertacijojos skyriuje analizuojama gyventi palanki būsto aplinka, „intelektinio būsto“, „sumanaus namo“ sampratos, nagrinėjamos intelektine gyventi palankia aplinka suinteresuotos grupės, esamos būsto problemos Lietu-voje ir užsienyje. Aptariama kompiuterinių technologijų, nanotechnologijų įtaka gyventi palankios aplinkos kūrimui. Akcentuojamas intelektinis aplinką tausojantis būstas, jo įgyvendinimo būdai ir priemonės. Apibendrinami atlikti moksliniai tyrinėjimai intelektinio būsto kūrimo srityje, nagrinėjami gyventi palankios ap-linkos analizės modeliai. Antrajame skyriuje nagrinėjama integruotos intelektinės gyventi palankios aplinkos būsto modelio koncepcija. Pateikiamas ir detaliai analizuojamas integruoto intelektinės gyventi palankios aplinkos būsto modelis, nagrinėjami modelį sudarantys elementai, mikro- ir makroaplinka, jos įtaka, paklausos ir pasiūlos charakteristikos, praktinės modelio realizavimo galimybės. Trečiajame skyriuje analizuojamas intelektinės gyvenamosios aplinkos variantinis projektavimas ir daugiakriterinė analizė. Apibendrinamas daugiakriterinei analizei reikalingų pradinių duomenų paruošimo procesas. Aprašomas autorės pasiūlytas intelektinės gyvenamosios aplinkos variantinio projektavimo ir daugiakriterinės analizės modelis, analizės atlikimo eiliškumas, pateikiamos skaičiuoti reikalingos formulės. Atliekamas praktinių... [toliau žr. visą tekstą]
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Chiu, David Sung-Tat. "A technology-driven solution to disrupt the residential real estate industry of existing homes." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/107591.
Повний текст джерелаАнотація:
Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, School of Engineering, System Design and Management Program, Engineering and Management Program, 2016.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 75-76).
In the past, home buyers and sellers of existing residential homes relied on real estate agents to buy and sell a home. Real estate agents are experts at fulfilling consumers' needs and often gatekeepers of vital information required to buy or sell a home. However, with more information publically available online, consumers are increasingly turning to the internet as their first and primary source of information in their real estate searches. Given that the majority of real estate interests begin online and consumers are continually turning to a more self-service and self-reliant method of home buying and selling, the value proposition between a real estate agent and their client has diminished. Onlookers have been surprised by the seemingly resilient business model that is still in place within the real estate industry. Is it still justified for real estate agents to charge substantial commissions as the value they provide to their clients is arguably reduced by changing consumer behaviors? Several companies have tried to disrupt the industry with limited success. The thesis investigates why current companies have failed by first studying the underlying stakeholder needs and their top priorities under numerous macroeconomic conditions. Then, exogenous factors on the system boundary are researched to provide context and a holistic view of the industry in which a proposed system would exist. Following this, concepts are generated using an intra-industry morphological matrix approach. However, in the concept selection phase, the previous approach reveals significant gaps in unmet primary stakeholder needs using technology. As such, inter-industry morphological matrix techniques are used to refine and improve the solution. Finally, various pricing strategies are studied and an appropriate pricing architecture for the propose system is hypothesized. This thesis proposes a disruptive solution to empower consumers to move the residential real estate industry forward and redistribute value within the real estate ecosystem. The proposed system allows consumers to buy and sell their own homes using a pure technology-based solution developed using a systems approach. Overall, by utilizing a systems approach, all insights discovered would have otherwise been unknown. It is because of the use of relevant frameworks, that strong underlying system architecture could be designed into a solution that fulfills all the needs of the primary beneficial stakeholder using technology.
by David Sung-Tat Chiu.
S.M. in Engineering and Management
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Gomez, Fabrizio. "Optimization of a grid connected residential battery storage system in Sweden : Home Energy Management System Approach." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-36927.
Повний текст джерелаАнотація:
The market for energy production has experienced relevant changes to reach more sustainable characteristics, during the last two decades. In this context, residential photovoltaic (PV) system has gained popularity as a practical and profitable alternative to complement the electric supply from the grid. In the same line, the seasonal and variable nature of PV supply generates an interest in BESS-battery energy storage systems.The aim with this thesis is to investigate HEMS-home energy management system for a residential electricity production using PV and storage in Sweden. HEMS allows residential customer and producer to sell or buy energy to minimize the final electricity bill. The capacityof BESS and the scheduling are optimized by using a proposed algorithm. Results gained indicate that factors such as household electricity demand and allocation during the day, electricity price, and tariff scheme are the critical variables to consider in the design of the BESS system. Optimal battery capacities obtained are within the range of available battery market stock-sizes. However, several of the standard battery capacities of the leading manufacturers are oversized for this case. For Swedish context, a BESS installation cost below 270 €/kWh generates saving on the annual electricity bill of having BESS in comparison with not using BESS. In addition, the daily charge of EV, electric vehicle, was studied to see if a higher demand for household electricity could generate an optimal capacity and higher savings.Marknaden för energiproduktionhar under de senaste två decenniernagenomgått förändringar för att bli mer hållbar. I detta sammanhang har solcell-system eller photovoltaic, PVför elproduktion i bostäder blivit ett praktiskt och lönsamt alternativ för att komplettera elförsörjning från elnätet. Solcellernas produktion är dock säsongsbetonadoch varierar även över dygnet varför system för lagring av el i batterier s.k. BESS blir intressant.Syftet med denna uppsatsär att undersöka HEMS, ett hushålls system för hantering avel-generering med solcelleroch batterilagring i Sverige. HEMS tillåter bostadskunder och producent att sälja ochköpa elför att minimera den slutliga elräkningen. Kapaciteten för BESSoch schemaläggning optimeras med hjälp av en föreslagen algoritm. De uppnådda resultaten tyder på att faktorer som efterfrågan på hushållsel och fördelning under dagen, elpriset och systemen för taxaär de kritiska variablernaatt beakta vid utformningen av BESS. Optimal batterikapacitet som uppnåtts ligger inom området för, på marknaden, tillgängliga batteristorlekar. Flera av de vanligaste batteriernas kapacitet,hos de ledande tillverkarna,är dock överdimensionerade. För svenska sammanhang genererar en BESS-installationskostnad under 270 € / kWh besparingar på den årliga elräkningen i jämförelse med att inte använda BESS. Som tillägg studerades daglig laddning av en elbil för att se om ett större elbehov kunde generera en mer optimal kapacitet och än större besparinga
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Gunes, Mehmet Burak. "Investigation of a Fuel Cell Based Total Energy System for Residential Applications." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/32130.
Повний текст джерелаАнотація:
Residences require electricity for lights, appliances, and space cooling and thermal energy for space and domestic water heating. Total energy systems (TES) which provide both electricity and thermal energy can meet these needs more effectively than conventional systems because thermal energy rejected during the on-site production of electricity can be recovered to meet the heating loads. TESs based on fuel cell systems are particularly attractive because of their high efficiencies, quiet operation, and small size. This research evaluates a TES consisting of a fuel cell sub-system (FCS), an electric heat pump (HP), and a thermal storage tank (TS).
A model of a grid-independent, electric load following TES is developed to determine the energy required to meet the hourly average electric and thermal loads of the residence. The TES uses a heat pump to provide space cooling. Electricity for air conditioning, lights, and appliances is provided by the FCS. Space heating and water heating of the residence are provided by the thermal energy available from the FCS. The TES is designed so that, heating requirements that exceed the heat available from the FCS can be satisfied by the HP and an electric water heater. A thermal storage tank is used to store and transfer thermal energy from the FCS to the residence.
The results of the research include a comparison of the energy use by the TES to the energy use by conventional residential energy systems; an evaluation of the effects of climatic conditions on system performance and energy use; and a comparison of the life-cycle cost of the TES and conventional residential energy systems. The results indicate that total energy systems can reduce primary energy use by as much as 40 percent, but that to be economically attractive, the FCS cost must be reduced to approximately $500/kWe.
Master of Science
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Martinez-Pabon, Madeline D. "Autonomous Appliance Scheduling System for Residential Energy Management in the Smart Grid." Thesis, The George Washington University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10746625.
Повний текст джерелаАнотація:
Demand response (DR) is considered one of the most reliable and cost-effective solutions for smoothing the electric demand curve of systems under stress. DR programs encourage customers to make changes in power consumption habits in response to electricity price incentives. A well designed autonomous scheduling system for households that are part of the smart grid can result in numerous benefits to all the players in the electricity market.
Distribution intelligence can be used to anticipate and moderate electricity usage, resulting in lowered production costs. When using this communication network, each entity may send and receive local and global data in a timely fashion, enabling customers to monitor their own electricity usage. Within a smart home, the energy management system is connected to smart appliances, thermostats, and other devices via a home area network (HAN). The HAN balances the electricity demand within the household and prioritizes between appliances and electric devices to modulate electricity usage and to ultimately reduce costs.
With a collection of rich and timely data, players in the power system can make better decisions to improve reliability, to optimize energy usage, and to reduce energy costs for themselves and for the system. Advanced metering infrastructure (AMI) creates ample opportunities to effectively address peak demand periods using pricing incentives, such as in DR programs and time-of-use (ToU) pricing, which ultimately reduce utilities operating costs. Electricity usage is thus reduced during peak hours with appliances and devices operating at other times, ensuring that electricity production is more evenly distributed throughout the day.
This dissertation presents a smart home energy management system (SHEMS) using a limited memory algorithm for bound constrained problems known as L-BFGS-B, along with time-of-use (ToU) pricing to optimize appliance scheduling in a 24-hour period. The allocation of energy resources for each appliance is coordinated by a smart controllable load (SCL) device embedded in the household's smart meter. SCL guarantees automation of the proposed SHEMS and prevents manual participation of customers in demand response (DR) programs. The model is simulated on a population of 247 residential prosumers with solar photovoltaic (PV) systems based on 15-min interval electric load data from a residential community in Austin, TX. After clustering households based on their electricity profiles, the proposed optimization model is performed. Simulation results showed that the proposed autonomous scheduling system reduced cumulative energy consumption for customers across the different clusters. In addition, when households were grouped based on their respective category according to the ToU pricing scheme, the simulation reported a notable decrease in total energy consumption from 65.771 kWh to 44.295 kWh; as well as a reduction in the cumulative cost of energy from $6.550 to $4.393 per day. Simulation results confirmed that the proposed algorithm effectively improved the operational efficiency of the distribution system, reduced power congestion at key times, and decreased electricity costs for prosumers.
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CARVALHO, NORMA ALICE DA SILVA. "HYBRID INTELLIGENT SYSTEM FOR CLASSIFICATION OF NON-RESIDENTIAL ELECTRICITY CUSTOMERS PAYMENT PROFILES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2016. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33393@1.
Повний текст джерелаАнотація:
PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIROCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO
O objetivo desta pesquisa é classificar o perfil de pagamento dos consumidores não-residenciais de energia elétrica, considerando conhecimento armazenado em base de dados de distribuidoras de energia elétrica. A motivação para desenvolvê-la surgiu da necessidade das distribuidoras por um modelo de suporte a formulação de estratégias capazes de reduzir o grau inadimplência. A metodologia proposta consiste em um sistema inteligente híbrido composto por módulos intercomunicativos que usam conhecimentos armazenados em base de dados para segmentar consumidores e, então, atingir o objetivo proposto. O sistema inicia-se com o módulo neural, que aloca as unidades consumidoras em grupos conforme similaridades (valor fatura, consumo, demanda medida/demanda contratada, intensidade energética e peso da conta no orçamento), em sequência, o módulo bayesiano, estabelece um escore entre 0 e 1 que permite predizer o perfil de pagamento das unidades considerando os grupos gerados e os atributos categóricos (atividade econômica, estrutura tarifária, mesorregião, natureza jurídica e porte empresarial) que caracterizam essas unidades. Os resultados revelaram que o sistema proposto estabelece razoável taxa de acerto na classificação do perfil de consumidores e, portanto, constitui uma importante ferramenta de suporte a formulação de estratégias para combate à inadimplência. Conclui-se que, o sistema híbrido proposto apresenta caráter generalista podendo ser adaptado e implementado em outros mercados.
The objective of this research is to classify the non-residential electricity customer payment profiles regarding the knowledge stored in electricity distribution utilities databases. The motivation for development of the work from the need of electricity distribution by a support model to formulate strategies for tackling non-payment and late payment. The proposed methodology consists of a hybrid intelligent system constituted by intercommunicating modules that use knowledge stored in database to customer segmentation and then achieve the proposed objective. The system begins with the neural module, which allocates the consuming units in groups according to similarities (bill amount, consumption, measured demand/contracted demand, energy intensity and share of the electricity bill in the customer s income), in sequence, the Bayesian module establishes a score between 0 and 1 that allows to predict what payment profile of the units considering the generated groups and categorical attributes (business activity, tariff type, business size, mesoregion and company s legal form) that characterize these units. The results showed that the proposed system provides a reasonable success rate when classifying customer profiles and thus constitutes an important tool in the formulation of strategies for tackling non-payment and late payment. In conclusion, the hybrid system proposed here is a generalist one and could usefully be adapted and implemented in other markets.
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Fiener, Yusef. "An intelligent system for vulnerability and remediation assessment of flooded residential buildings." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/9150.
Повний текст джерелаАнотація:
Floods are natural phenomena which are a threat to human settlements. Flooding can result in costly repairs to buildings, loss of business and, in some cases, loss of life. The forecasts for climate change show a further increased risk of flooding in future years. Accordingly, the flooding of residential property has been observed as on the rise in the UK. It is difficult to prevent floods from occurring, but the effects of flooding can be managed in an attempt to reduce risks and costs of repair. This can be achieved through ensuring a good understanding of the problem, and thereby establishing good management systems which are capable of dealing with all aspects of the flood. The use of an intelligent system for assessment and remediation of buildings subjected to flooding damage can facilitate the management of this problem. Such a system can provide guidance for the assessment of vulnerability and the repair of flood damaged residential buildings; this could save time and money through the use of the advantages and benefits offered by knowledge base systems. A prototype knowledge base system has been developed in this research. The system comprises three subsystems: degree of vulnerability assessment subsystem; remediation options subsystem; and foundation damage assessment subsystem. The vulnerability assessment subsystem is used to calculate the degree of vulnerability, which will then be used by the remediation options subsystem to select remediation options strategy. The vulnerability assessment subsystem can subsequently be used to calculate the degree to which the building is vulnerable to damage by flooding even if it is not flooded. Remediation options subsystem recommended two strategy options: either ordinary remediation options in the case of vulnerability being low or, alternatively, resilience remediation options in the case of vulnerability being high. The foundation damage assessment subsystem is working alone and is used to assess the damage caused by flooding to the building s foundation, and to thereby recommend a repair option based on the damage caused and foundation type. The system has been developed based on the knowledge acquired from different sources and methods, including survey questionnaires, documents, interviews, and workshops. The system is then evaluated by experts and professionals in the industry. The developed system makes a contribution in the management and standardisation of residential building flooded damage and repair.
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Grott, Steven, David Lecko, Ryan Parker, and Nathan Price. "Telemetry System for Remote Monitoring of Utility Usage in Commercial and Residential Structures." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581677.
Повний текст джерелаАнотація:
ITC/USA 2012 Conference Proceedings / The Forty-Eighth Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2012 / Town and Country Resort & Convention Center, San Diego, CaliforniaThe system described in this paper can monitor utility usage in commercial and residential structures, and send an alert message over conventional cell phone networks when it detects an anomalous condition. Such a condition could indicate a utility outage, structure failure, HVAC system failure, water leak, etc. The microcontroller-based system can measure electrical current, carbon monoxide, methane, liquid propane, temperature, barometric pressure, and altitude using a wired and wireless sensor network. The microcontroller displays the measurements on local and external graphical user interface, and sends SMS alert messages when necessary. The system may be retrofitted into existing structures.
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Svensson, Emma, and Hanna Borgefeldt. "Holistic KPIs for Sustainability Assessment of Residential Food Systems." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279689.
Повний текст джерелаАнотація:
Food is one of the strongest influences affecting both human health and the environment. The food sector is responsible for a substantial share of greenhouse gas emissions in the world, and the demand for more sustainable diets has, therefore, increased. The individual is starting to realize one's own possibility to contribute to a more sustainable society, and people are willing to change their habits to become more sustainable. Therefore, the purpose of this study was to create holistic KPIs for sustainable food systems that encourage improvement. The KPIs aim to measure and quantify sustainability from three perspectives: environmental, economic and social sustainability. The methodology used is a framework consisting of five focus areas aiming to create sustainability indicators. The purpose of the five focus areas are to establish vision, indicator framework, indicator selection, stakeholder participation and lastly communication design and strategy. 13 KPIs have been developed, focusing on electricity usage, water usage, GHG emissions, waste management, well-being and expenses. The target group, aimed to use the KPIs, consists of students living in Sweden, making the KPIs adjusted to a student’s lifestyle. The KPIs range from 0-100 %, and a final sustainability ranking is provided through a weighted average of the 13 indicators. The indicators are presented in a radar chart to increase awareness of the students' everyday habits and aim to encourage improvement to increase the sustainability ranking.
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Wahlström, Madeleine. "Residential Rental Determination in Sweden and Germany : A critical analysis." Thesis, KTH, Fastigheter och byggande, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-50040.
Повний текст джерелаАнотація:
The Swedish residential rental system and market has been discussed and criticized diligently the past years. A reformed rental law was therefore the 1 stof January 2011 implemented. This has the purpose to better reflect the consumer’s priorities with a more market related rental determination. With this change, it is of interest to compare it to another rental system, with market rents. In the German rental system, free rental setting is allowed in new leases. This thesis aims to evaluate and compare the rental system in Sweden and Germany. The comparison was done after reading several reports, articles and literature as well as interviews with Swedish and German actors. Results show that the reformed Swedish law will not lead to major changes, though it might lead to a more adequate rental determination system. The analysis of the German system, with its free rental setting for new leases show that is better functioning than the Swedish. It is however positive that the new Swedish law incorporates more market related variables, even though the determination of a market rent is quite complex. A free rental setting allocates diversity in the market and contributes to a heterogeneous market, as it is possible to meet different consumers demand. The rental market can be expanded though, with a free rental setting when subletting condominiums. A conclusion from the analysis is that Sweden should strive to adopt a German system with free rental setting in new leases.
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Matenda, Mutondo Paul. "Development of an energy model in system modeling language for future automated residential building applications." Thesis, Cape Peninsula University of Technology, 2014. http://hdl.handle.net/20.500.11838/1190.
Повний текст джерелаАнотація:
Thesis (MTech(Electrical Engineering)) -- Cape Peninsula University of Technology, 2014Today the building energy modeling industry is facing a number of challenges, the advanced programs or methods developed for building energy modeling, are very technical and complex to be used, especially for earlier designs, and the easy programs or methods are not accurate. Moreover, more than a hundred programs developed for energy modeling, have been used in the same building, but most of the time the results differed by about 30%. That is why this thesis has developed a new building energy model in System Modeling Language (SysML), in order to meet, at the same time, the accuracy and the simplicity to be used for future and existing buildings. In this thesis, SysML has been used to develop an energy model and to set up an automation system to the existing building. SysML can do more than simulations, but this thesis is limited to only the simulations steps by using easy applications of SysML and fewer diagrams which could develop in a complete building energy model. SysML is the extension of Unified modeling Language (UML), which uses fewer diagrams than UML. SysML is simple, open and more flexible to be used in any Engineering System. The previous chapter describes SysML and gives the overview and the platform of SysML. The simulations of SysML in this project have been developed through Enterprise Architect and Mat lab software. The inputs used to simulate the program are the parameters of the existing building chosen for modeling that is a student residential building complex located in Stellenbosch, Western Cape in South Africa. Automation system program used in this thesis was based on the norms and building standards of South Africa, renewable energy and the requirements of the buildings’ occupants, in order to meet energy efficiency and safety of the occupants.
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Stene, Jørn. "Residential CO2 Heat Pump System for Combined Space Heating and Hot Water Heating." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2004. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-382.
Повний текст джерелаАнотація:
Carbon dioxide (CO2, R-744) has been identified as a promising alternative to conventional working fluids in a number of applications due to its favourable environmental and thermophysical properties. Previous work on residential CO2 heat pumps has been dealing with systems for either space heating or hot water heating, and it was therefore considered interesting to carry out a theoretical and experimental study of residential CO2 heat pump systems for combined space heating and hot water heating – so-called integrated CO2 heat pump systems. The scope of this thesis is limited to brine-to-water and water-to-water heat pumps connected to low-temperature hydronic space heating systems..
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Grundmark, Sofia. "The current tax system on the Swedish residential market – problems and possible solutions." Thesis, KTH, Fastigheter och byggande, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-150794.
Повний текст джерелаАнотація:
Idag präglas den svenska bostadsmarknaden av en trögrörlighet som bland annat beror på höga flyttrelaterade skatter. Dessa flyttrelaterade skatter består av reavinstskatt, stämpelskatter, expeditionsavgifter och uppskovsränta. Många hushåll anser det idag vara för dyrt att flytta och avstår därför. Detta leder till att flyttkedjor stannar upp och arbetsmarknaden påverkas negativt eftersom många hushåll drar sig för att flytta och många tackar därför nej till arbeten som kräver en flytt. Detta beteende leder till att den individuella välfärden och hela Sveriges ekonomiska välfärd drabbas negativt. Detta är ett aktuellt och omtalat ämne och många rapporter har skrivits och det finns många förslag på förbättringar till dagens system. Många har som syfte att ge förslag på olika åtgärder som skulle leda till ett bättre system på bostadsmarknaden och många har gjort beräkningar på hur resultat av bland annat en minskning av reavinstskatten skulle se ut. Det är dock i detta examensarbete första gången som en siffra över hur hög en fastighetsskatt skulle behöva vara för att kunna ersätta dagens alla flyttrelaterade skatter redovisas. Detta arbete har som syfte att se över dagens flyttrelaterade skattesystem och uppmärksamma eventuella problem med dagens situation. En litteraturstudie redovisas för att en bredare inblick ska ges och utifrån litteraturstudien kommer sedan ett antal förslag till förbättringar av dagens flyttrelaterade skattesystem att sammanfattas. Sedan kommer en utredning av hur mycket dagens flyttrelaterade skatter faktiskt genererar i pengar till staten att redovisas och sist kommer beräkningen över hur hög en fastighetsskatt skulle behöva vara för att kunna ersätta dagens flyttrelaterade skatter. Slutsatserna visar på att en del av problemen med dagens flyttrelaterade skattesystem kan lösas med en rad olika åtgärder som flera författare har utrett. Beräkningarna över hur hög en fastighetsavgift skulle behövara vara för att kunna ersätta dagens flyttrelaterade skatter visar på att alla bostadsägare årligen ska betala 5900 kronor eller 0,47 % av sitt taxeringsvärde i skatt, oavsett om man äger ett småhus eller en bostadsrättslägenhet.The Swedish housing market is presently characterized by low mobility. This could partly be a result of the high taxes on moving from one house to another. Not only is there a capital-gains tax on moving, but also a stamp duty, a service charge and an interest charge on postponed capital gains tax. Many households consider the price of moving too high, making them reluctant to move. This will have a negative effect on the labour market due to the fact that people will be less willing to move to places where labour is needed. This type of behaviour will ultimately affect both the wealth of the individual and Sweden’s economy in a negative way. The purpose of this thesis is to examine the current tax-system and emphasize the problems with it. Firstly, a literature study will be presented to give a wide perspective of the subject. This will be the basis for a number of suggestions that will resolve the problem with low mobility on the housing market. After this, an investigation of how much money the taxes on moving actually generate to the government. Lastly, a calculation of how high a real estate tax would have to be in order to replace the taxes on moving. The conclusions of this paper suggest that there are a number of actions that can be taken in order to resolve some of the problems with the tax system on the Swedish housing market. The calculations show that the taxes on moving could be replaced by a real estate tax where the homeowners would pay 5900 SEK or 0,47% of the assess value of the home yearly, instead of paying taxes only when moving.
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VIANNA, JULIANA DA CRUZ. "COMPOSITE SLAB SYSTEM FOR RESIDENTIAL CONSTRUCTIONS USING COLD FORMED STEEL PLATES WITH EMBOSSMENTS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2005. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=6962@1.
Повний текст джерелаАнотація:
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIORNos trabalhos já concluídos nesta linha de pesquisa foram desenvolvidos protótipos de deck-metálico (steel-deck), empregando-se diversas formas de ligação entre a chapa de aço e o concreto armado, tais como: corrugações de alma (Andrade, 1986), parafusos auto-brocantes (Takey, 2001), septos em perfís tipo bandeja (Vieira, 2003) e corrugações circulares profundas (Beltrão,2003). Com a intenção de se desenvolver um novo perfil metálico que apresentasse uma boa aderência mecânica entre o concreto e o aço e com características de comportamento dúctil, estudou-se várias formas da seção transversal ideal. Variáveis como peso, altura, espessura, tensão de escoamento, vão máximo, e capacidade de suporte de carga foram consideradas. Após definição e otimização da seção do perfil metálico, foi efetuado um estudo experimental composto de uma série de ensaios. Foram executados dois ensaios de arrancamento (pull-out), nove ensaios de flexão do perfil metálico e um ensaio em escala real da laje mista. Os ensaios tipo pull-out foram executados para estabelecer a carga última de deslizamento na interface aço/concreto. Os ensaios dos perfis metálicos serviram para verificar a rigidez dos mesmos durante a fase de concretagem. Procurou-se com o ensaio em escala real determinar a resistência última da estrutura, o modo de ruína, as deflexões e as deformações. A fase final compreendeu a comparação dos resultados experimentais com os dos trabalhos desenvolvidos por Takey e Beltrão, bem como com resultados teóricos para validação de resultados do sistema proposto de laje mista.
The research work in composite slabs so far conducted has investigated various alternatives for the development of an economic and efficient composite slab system. These alternatives evaluated the effectiveness of the concrete to steel plate bonding by means of: web corrugations (Andrade, 1986), self-drilling bolts (Takey, 2001), cold formed channel sections with diaphragms (Vieira, 2003), and the used of deep circular corrugations, (Beltrão, 2003). The present investigation main objective was to develop a cold formed profile presenting an efficient connection between the concrete and the steel profile that yields a ductile behaviour for such system. The first step of the investigation was devoted to the assessment of an optimum cold-formed profile geometry. This task was made taking into account parameters like: profile weight, plate thickness, yield stress, maximum span and load carrying capacity among others. Following the definition of the optimum cold formed steel profile an experimental program was conceived and executed. The first part of the experiments consisted on pull-outs tests made to access the concrete to steel bond resistance. This was followed by simple supported tests on the cold formed steel profile to evaluate their stiffness during concrete casting operation. Finally a full-scale composite slab system was performed. The main aim of this test was to determine the composite system load carrying capacity, typical failure modes, associated stresses and displacements. The final phase of this dissertation depicts comparisons of the already mentioned experiments to other tests made by Takey (Takey, 2001), and Beltrão (Beltrão, 2003), as well as comparison of theoretical results, to validate the proposed composite slab system results.
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Skinner, Colin E. "Simulating Energy Usage Impact of Retrofitting Residential Registers with a Simple Damper System." Thesis, Tufts University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10118604.
Повний текст джерелаАнотація:
Air conditioning and heating comprised 47.7% of total energy usage in residential homes in the United States in 2009 equating to 4.86 quad (5.13 EJ) energy used. According to the U.S. Energy Information Administration (EIA) this is down from 58% in 1993. This is in large part due to the difference types of energy efficiency measures, from installing more efficient equipment to drafting better building codes that are inclusive of energy saving measures. Generally, these measures are very effective for new buildings. However, older buildings may still rely on less efficient materials and equipment thus inflating the building's energy usage.
The installation of simple dampers on the registers of a two-story, 2400 sq. ft. residential house as a retrofit measure to increase energy efficiency of its heating, cooling, and ventilation (HVAC) system is explored in this thesis. A residential house was modeled in EnergyPlus (v8.4), a whole-building energy simulation software available from the U.S. Department of Energy (DOE). The house was simulated for total energy usage with a typical HVAC system serving seven rooms; it was compared to a simulation of the same system with simple dampers installed on the registers.
It is shown that by installing dampers that self-fluctuate for local room temperatures, the system has an 11% reduction in energy usage in the Boston, Massachusetts climate zone. Additionally, the dampers are able to reduce hot and cold spots within the building and reduce, on average, the difference between the first and second floor temperatures. It is also shown that the effects of overpressurization of the HVAC system could be minor through an airflow simulation using CONTAM and EnergyPlus, but more experimentation is required. Seven other climate zones in the US were also simulated.
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Fu, Yu. "Investigation of solar assisted heat pump system integrated with high-rise residential buildings." Thesis, University of Nottingham, 2014. http://eprints.nottingham.ac.uk/14582/.
Повний текст джерелаАнотація:
The wide uses of solar energy technology (solar thermal collector, photovoltaic and heat pump systems) have been known for centuries. These technologies are intended to supply domestic hot water and electricity. However, these technologies still face some barriers along with fast development. In this regards, the hybrid energy system combines two or more alternative technologies to help to increase the total efficiency of the system. Solar assisted heat pump systems (SAHP) and photovoltaic/thermal collector heat pump systems (PV/T-HP) are hybrid systems that convert solar radiation to thermal energy and electricity, respectively. Furthermore, they absorb heat first, and then release heat in the condenser for domestic heating and cooling. The research initially investigates the thermal performance of novel solar collector panels. The experimental results indicate an average daily efficiency ranging from 0.75 to 0.96 with an average of 0.83. Compared with other types of solar collectors, the average daily efficiency of novel solar thermal collectors is the highest. The research work further focuses on the integrated system which combines solar collector and air source heat pump (ASHP). The individual components, configurations and layout of the system are illustrated. Theoretical analysis is conducted to investigate thermodynamic cycle and heat transfer contained in the hybrid system. Laboratory tests are used to gauge the thermal performance of the novel SAHP. A comparison is made between the modelling and testing results, and the reasons for error formation are analysed. The research then considers the specially designed PV/T collector that employs the refrigerant R134a for cooling of PV modules and utilizes the glass vacuum tubes for reducing the heat loss to the ambient air. The PV/T collector consists of 6 glass vacuum tube-PV module-aluminium sheet-copper tube (GPAC) sandwiches which are connected in series. The theoretical analysis and experimental tests all give the satisfactory results of up to 2.9% improvement of electrical efficiency compared with those without cooling. The research finally focuses on the integrated heat pump system where the PV/T collector acts as evaporator. Based on the energy balance of the four main components of the heat pump system, a mathematical model of the heat pump system is presented. When the instantaneous ambient temperature and solar radiation are provided, results are obtained for the spatial distributions of refrigerant conditions, which include temperature, pressure, vapour quality and enthalpy. Detailed experimental studies are carried out in a laboratory. Three testing modes are proposed to investigate the effect of solar radiation, condenser water flow rate and condenser water supply temperature on energy performance. The testing results show that an average coefficient of performance (COP) reached 3.8,4.3 and 4.0 under the three testing modes with variable radiation, condenser water supply water temperature and water flow rate, respectively. However, this could be much higher for a large capacity heat pump system using large PV panels on building roofs. The COP increases with the increasing solar radiation, but decreases as the condenser water supply temperature and water flow rate increases.
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O'Kelly, Matthew E. "Dynamic Simulation of a Superinsulated Residential Structure with a Hybrid Desiccant Cooling System." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1345442100.
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Rowland, James Robert. "Reducing Residential Space Conditioning Costs with Novel HVAC System Design and Advanced Controls." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1420018735.
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Marschalek, James. "Tools & techniques for reduced energy consumption with residential energy system example application." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1464367.
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Boyle, Patrick. "Energy Performance Simulation of Different Ventilation Systems in Sweden and Corresponding Compliance in the LEED Residential Rating System." Thesis, Högskolan Dalarna, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:du-34516.
Повний текст джерелаАнотація:
The importance of energy efficiency in the operation of the built environment is becoming increasingly important. Energy use in the building sector has exceeded both transportation and industry, while within buildings heating, ventilation, and air conditioning has the greatest share. In light of the recent pandemic forcing governments to issue quarantines and stay-at-home orders people are spending even more time indoors, this further emphasizes the importance of proper ventilation and the impacts on energy use. The purpose of this research was to perform a case study of a low environmental impact demonstration house to compare the energy performance of various ventilation strategies. The ventilation strategies varied by overall airflow rate, control strategy, and the presence of heat recovery. Performance was evaluated by establishing a model in IDA ICE, an equation-based modeling tool for the simulation of indoor thermal climate and energy use. The results showed energy savings due to demand-control with a reduction of 12.5%. Results also showed similar savings with a heat recovery system, indicating that any savings in heat loss due to heat recovery is at the expense of increased auxiliary energy. In this particular case, the benefit of upgrading to a heat recovery system from simple demand control set up is not readily apparent. Results also demonstrated trends and possible complications useful to future research plans that aim to measure real world ventilation performance, including how differences in the number and location of sensors impact the efficacy of the demand-controlled systems. A secondary aim was to observe how a newly constructed, low environmental impact home built in Sweden performs according the residential LEED energy budget. The results demonstrated that constructing a house using low impact materials with low embodied energy does not have to negatively impact energy performance, scoring extremely well in the Energy and Atmosphere category of a widely used sustainable building rating system.
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Sharifani, Pooya. "Quantification of Human Thermal Comfort for Residential Building's Energy Saving." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc862744/.
Повний текст джерелаАнотація:
Providing conditioned and fully controlled room is the final goal for having a comfortable building. But on the other hand making smart controllers to provide the required cooling or heating load depending on occupants' real time feeling is necessary. This study has emphasized on finding a meaningful and steady state parameter in human body that can be interpreted as comfort criterion which can be expressed as the general occupants' sensation through their ambient temperature. There are lots of researches on human physiological behavior in different situations and also different body parts reaction to the same ambient situation. Body parts which have the biggest reliable linear fluctuation to the changes are the best subject for this research. For these tests, wrist and palm have been selected and their temperatures on different people have been measured accurately with thermal camera to follow the temperature trend on various comfort levels. It is found that each person reaches to his own unique temperature on these two spots, when he/ she feels comfortable, or in other word each person's body temperature is a precise nominate for comfort feeling of that individual. So in future by having this unique comfort parameter and applying them to the HVAC system temperature control, controlling the dynamic temperature and correlating the indoor condition depending on the occupants instant thermal comfort level, would be a rational choice to bring convenience while energy has been saved more.
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Knuth, Cody William. "A case study in whole building energy modeling with practical applications for residential construction." Kansas State University, 2012. http://hdl.handle.net/2097/15052.
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Master of ScienceDepartment of Architectural Engineering
Charles L. Burton
An energy analysis was performed on a Midwestern residence to evaluate its performance based on energy use. A model of the actual house was replicated using eQuest and adjusted until its projected utility bills matched the actual yearly bills. This model was used to gauge how potential improvements made to the envelope and HVAC systems lowered the energy use. The results were documented after each improvement the feasible options were considered. The top alternatives were then combined to see how much money could be saved through renovating an existing home or through constructing a new residence. The overall goal of this report was to use the resulting improvement data as a reference for homeowners or home builders who are interested in conserving energy and money through residential improvements.
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Chu, Kai-kun. "The impact of ISO quality system (ISO 9001:2000) on property services companies in Hong Kong /." View the Table of Contents & Abstract, 2008. http://sunzi.lib.hku.hk/hkuto/record/B40988296.
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Dooley, Jeffrey Brandon. "Effects of system cycling, evaporator airflow, and condenser coil fouling on the performance of residential split-system air conditioners." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1513.
Повний текст джерелаАнотація:
Three experimental studies were conducted to quantify the effects of system
cycling, evaporator airflow, and condenser coil fouling on the performance of residential
air conditioners. For all studies, the indoor dry-bulb (db) temperature was 80°F (26.7°C)
db. The cycling study consisted of twelve transient tests conducted with an outdoor
temperature of 95°F (35°C) db for cycle times of 6, 10, 15, and 24 minutes. Indoor
relative humidities of 40%, 50%, and 60% were also considered. The evaporator airflow
study consisted of twenty-four steady-state tests conducted with an indoor condition of
67°F (19.4°C) wet-bulb (wb) for evaporator airflows ranging from 50% below to 37.5%
above rated airflow. Outdoor temperatures of 85°F (29.4°C) db, 95°F (35°C) db, and
105°F (40.6°C) db were also considered. The coil fouling study used a total of six
condensers that were exposed to an outdoor environment for predetermined amounts of
time and tested periodically. Three of the condensers were cleaned and retested during
the periodic testing cycles. Testing consisted of thirty-three steady-state tests conducted
with an indoor condition of 67°F (19.4°C) wb for outdoor exposure times of 0, 2000,
4000, and 8000 hours. Outdoor temperatures of 82°F (27.8°C) db and 95°F (35°C) db
were also considered.
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Carvajal, Franklin. "Coping Strategies Form Systems that Regulate PTSD Symptoms in Children and Adolescents: Exploring the Regulatory Hypothesis." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/27989.
Повний текст джерелаАнотація:
This study investigated the potential regulatory effects of various coping strategies on Posttraumatic Stress Disorder (PTSD). It first divided PTSD symptoms and selected coping strategies into cognitive, social/motivational, and emotional types. The study then conceptualized each of the preceding types of coping strategies as being controlled stress responses and the PTSD symptoms as being semiautomatic stress responses. It lastly proposed that coping strategies be further divided into activating controlled stress response and deactivating controlled stress response. Controlled stress responses are coping strategies that are consciously initiated and implemented. Semiautomatic stress responses are PTSD symptoms that spontaneously emerge without conscious intent. Activating controlled stress responses consisted of the following coping strategies: seeking understanding, avoidant actions, and expressing feelings. Deactivating controlled stress responses encompassed: positive cognitive restructuring, emotion-focused support, and physical release of emotions. Semiautomatic stress responses entailed: reexperiencing, numbing, and arousal symptoms. It was proposed that cognitive, social/motivational, and emotional activating controlled stress responses would increase corresponding cognitive, social/motivational, and emotional semiautomatic stress responses. In the same vein, it was expected that cognitive, social/motivational, and emotional deactivating controlled stress responses would decrease respective semiautomatic stress responses. To illustrate, it was predicted that with regard to the cognitive regulatory system, its activating cognitive controlled stress response (seeking understanding) would exacerbate the frequency of associated cognitive semiautomatic stress responses (reexperiencing PTSD symptoms) whereas its deactivating cognitive controlled stress response (positive cognitive restructuring) would ameliorate it.
Path analyses were conducted on correlation matrices whose elements represented two coping strategies (e.g., an activating controlled stress response: seeking understanding, and a deactivating controlled stress response: positive cognitive restructuring) and one PTSD symptom cluster of the same nature (e.g., the semiautomatic stress response: reexperiencing). Data were obtained from a sample of sixty-four children and adolescents ages 8-18. The coping strategies were assessed via ratings on items included in the How I Cope Under Pressure (HICUPS) instrument and the PTSD clusters through the use of the Diagnostic Interview for Children and Adolescents (DICA).
Only one hypothesis was partially supported. It was found that the social/motivational activating controlled stress response (avoidant actions) indeed increased social/motivational semiautomatic stress responses (numbing symptoms).Ph. D.
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Gomaa, Bakr M. "Wind channels : a novel passive ventilation system for deep plan high-rise residential buildings." Thesis, University of Nottingham, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.546571.
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Chalal, Moulay L. "A smart urban energy prediction system to support energy planning in the residential sector." Thesis, Nottingham Trent University, 2018. http://irep.ntu.ac.uk/id/eprint/34655/.
Повний текст джерелаАнотація:
The UK residential sector accounts for approximately 27%., and 17% of the country energy consumption and its CO2 emission, respectively. Thus, developing appropriate polices to reduce the environmental factors, which are associated with the CO2 emissions of a rapidly growing urban population, constitutes a high priority. Moreover, ensures the creation of cities that respect the natural environment and the well-being of future generations. While a great deal of expertise on detailing and constructing low-energy buildings and cities has been developed, it is fragmented and does not consider the concept of household life-cycle demographic transitions in the prediction of residential energy consumption. This research aimed to develop an integrated 3D urban energy prediction tool which supports decision-making for a sustainable energy monitoring and planning in the residential sector. This, while considering the CK household demographic transition patterns in the energy prediction process. To attain the above aim, the research embraced a mixed-methods methodology with 4 stages of practical implementations. In stages 1 and 2, statistical procedures such as binary logistic regression, were applied to the British household panel data survey (BHPS) to attain the two following objectives. First, to analyse the socio-economic and demographic factors affecting the UK household transitions; consequently, predict future transition patterns in the next 10-15 years. Secondly, to investigate the impact of the predicted transition patterns on the residential energy consumption. The examination of the findings indicated that the nature of independent factors and their degree of influence on household transition patterns were not consistent across the 10-15 years. Moreover, it advised that household transitions mostly have a positive but weak effect on their energy usage. Based on those findings, a linear regression model was developed to predict the households' future electricity usage in function of their transition, demographic and socio economic variables. In phases 3 and 4, a 3D urban energy prediction tool (EvoEnergy) was developed by first building a 3D semantic model of a pilot area in Nottingham city. Moreover, by integrating the research findings from stages 1 and 2 into EvoEnergy using computer scripting, open-source game technology, and 3D visualisation techniques. Finally, despite the facts that the benchmarking of EvoEnergy highlighted some areas for improvement, it has advised that EvoEnergy has the ability to predict domestic electricity consumption at the building and neighbourhood levels with a good accuracy(+/- 5% error).
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Steidle, James. "In search of equity: rethinking the residential provincial property tax system in British Columbia /." Burnaby B.C. : Simon Fraser University, 2006. http://ir.lib.sfu.ca/handle/1892/2627.
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Chen, Yen-Hao, and 陳彥昊. "SCADA System Application for Residential Security." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/5t355r.
Повний текст джерелаАнотація:
碩士國立虎尾科技大學
機械與機電工程研究所
103
The purpose of the study is to design a home security surveillance system and an emergency notification system with a network design. The study adopted a programmable logic controller (PLC) and a human–machine interface (HMI) to consist a SCADA system which can reach the demands of home security surveillance and an emergency notification. Besides, a carbon monoxide detector can detect the level of carbon monoxide and the updates will display on the Internet. If the level of carbon monoxide is over the maximum allowable concentration, then the user(s) will receive a notification via an email immediately. It can not only seek help from outside groups, but also know its improvement of the level of carbon monoxide with the displayed figures. In addition, an infrared sensor (IR sensor) was also applied into the system to detect if there are any suspicious-looking characters around the house and a notification will send to the user(s) as well. In this study, a web cam was also installed into the system. Thus, it can not only provide people with video footage of any events which may happen around the house, but also control lights indoors with a remote control system.
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Huang, Hsiu Chueh, and 黃秀雀. "Study of solar photovoltaic system for residential community." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/87360804875570146922.
Повний текст джерелаАнотація:
碩士康寧大學
休閒資源暨綠色產業研究所
101
In recent years, Far-reaching impact on the environment due to climate change and nuclear disaster arouses people's awareness of environmental protection. In view of this, people look actively for a substitutable renewable energy, like clean solar energy inexhaustible. This research examines the potential energy production, financial feasibility and GHG emissions associated with installing photovoltaic systems on the apartment roof. Feasibility assessment of the proposed PV system is evaluated by using RETScreen modeling software. The area of the building roof available for erection is for 1,092 m2. The results show the greatest energy production potential with dual-axis solar system, generating 241,940 kWh accounting for 87% of the community year public electricity consumption, and saving 133 tons of GHG emissions annually. Summary of the financial indicators finds three grid-connected modes payback period are more than 25 years, the lack of investment incentives. The wholesale electric system with one-axis solar mounted is the best financial choice. Recommended that the Government actively encourage the industry to research and development of solar cell conversion efficiency, to reduce installation costs, and simplify the process of PV systems applied to set up, to shorten the review time.
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LU, CHENG-KUO, and 呂政國. "Residential Burglary Prevention by Embedded Video Analysis System." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/68759085587117334584.
Повний текст джерелаАнотація:
碩士國立臺北教育大學
資訊科學系碩士班
104
Residential burglary crime, does not only cause damage to the property of the victim, but can also affect the victims’ psychology producing symptoms such as fear, being afraid, anger and frustration etc. because a lot of the times, victims were in their homes when the burglary occurred. Residential burglary practices such as the ‘labeling’ technique involves the burglar going door to door during the daytime, using intercom doorbells to check who is present. If there was an absence, the burglar would stick a label or make a pen mark on the intercom button or mailbox. The next day, the burglar would either press the intercom again or directly break and enter inside with the intent to steal property. This is a common practice among burglars. With this point of view, this paper examines the use of embedded video analysis system with the Raspberry Pi device to capture human facial images to record activities facing the intercom doorbell during the day. The use of RBG color space technology when there is limited light source is useful as it is more sensitive to red and green lines, therefore reducing the influences on the image. To retrieve the correct color range, a procedure involving binarization and morphological image processing is created with oval template and eye feature detection to shape out facial features. In addition, the image is captured and an instant text message or email will alert homeowners and therefore reduce burglary in residential homes. For future references, this may be used for criminal investigations and assessments for policing public security.