Relevant bibliographies by topics / Natural ventilation

Academic literature on the topic 'Natural ventilation'

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Published: 4 June 2021
Last updated: 6 September 2023

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Journal articles on the topic "Natural ventilation"

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Fordham, M. "Natural ventilation." Renewable Energy 19, no. 1-2 (January 2000): 17–37. http://dx.doi.org/10.1016/s0960-1481(99)00012-9.

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Heiselberg, Per. "Natural Ventilation Design." International Journal of Ventilation 2, no. 4 (April 2004): 295–312. http://dx.doi.org/10.1080/14733315.2004.11683674.

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Kim, Yeong Sik, Hanshik Chung, Hyomin Jeong, Sung-Ki Song, Chungseob Yi, and Soon-Ho Choi. "Experimental Study on a Fixed Type Natural Ventilator." International Journal of Air-Conditioning and Refrigeration 24, no. 03 (September 2016): 1650016. http://dx.doi.org/10.1142/s2010132516500164.

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Ventilation is the intentional air supply to a closed space from the outside, which is essential for the sake of a comfortable environment and the health of human beings. In recent, with the wide spread of renewable energy, much attention has been paid to the natural ventilation. The natural ventilator is classified into a fixed type, a venturi type and a wind turbine type. In this study, the ventilation rates of the fixed type ventilator were experimentally investigated by changing the wind velocity. Additionally, the condition of a backflow was also examined. According to the experimental results, the ventilated air flow strongly depended on the outside wind velocity and also on the intake opening area. In the reverse flow test, it was confirmed that the reverse flow into the ventilator occurred if the wind velocity was under a certain threshold value. Furthermore, the reverse flow phenomenon was more severe when an obstacle is located in the downstream of a ventilator.
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Li, Mao, Yukai Qiang, Xiaofei Wang, Weidong Shi, Yang Zhou, and Liang Yi. "Effect of Wind Speed on the Natural Ventilation and Smoke Exhaust Performance of an Optimized Unpowered Ventilator." Fire 5, no. 1 (January 28, 2022): 18. http://dx.doi.org/10.3390/fire5010018.

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Natural ventilators can maintain the ventilation of buildings and tunnels, and can exhaust fire smoke without requiring energy. In this study, we optimized a natural ventilator by adding axial fan blades (equivalent to adding a fan system) to investigate the effect of wind speed on the ventilation and smoke exhaust performance of an optimized natural ventilator. The experimental results showed that the best configuration of the ventilator was five fan blades at an angle of 25° with set-forward curved fan blades. With this configuration, the ventilation volume of the optimized natural ventilator was increased by 11.1%, and the energy consumption was reduced by 2.952 J. The third experiment showed that, in the case of a fire, the optimized ventilator can reduce the temperature of the ventilator faster than the original ventilator, indicating better smoke exhaust performance. The reason for this effect is that, when the optimized natural ventilator rotates, the rotation of the blades creates a flow field with a more evenly distributed wind speed. The experiments proved that natural ventilators can be optimized by adding a fan system. The results of this study can be applied to effectively improve the ventilation performance of natural ventilators to quickly exhaust smoke in building and tunnel fires, and provide a reference for related research on natural ventilators.
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Sharples, Steve, and Nelson Chilengwe. "Performance of ventilator components for natural ventilation applications." Building and Environment 41, no. 12 (December 2006): 1821–30. http://dx.doi.org/10.1016/j.buildenv.2005.08.012.

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Choi, Younhee, and Doosam Song. "How to quantify natural ventilation rate of single-sided ventilation with trickle ventilator?" Building and Environment 181 (August 2020): 107119. http://dx.doi.org/10.1016/j.buildenv.2020.107119.

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Yoon, Nari, Mary Ann Piette, Jung Min Han, Wentao Wu, and Ali Malkawi. "Optimization of Window Positions for Wind-Driven Natural Ventilation Performance." Energies 13, no. 10 (May 14, 2020): 2464. http://dx.doi.org/10.3390/en13102464.

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This paper optimizes opening positions on building facades to maximize the natural ventilation’s potential for ventilation and cooling purposes. The paper demonstrates how to apply computational fluid dynamics (CFD) simulation results to architectural design processes, and how the CFD-driven decisions impact ventilation and cooling: (1) background: A CFD helps predict the natural ventilation’s potential, the integration of CFD results into design decision-making has not been actively practiced; (2) methods: Pressure data on building facades were obtained from CFD simulations and mapped into the 3D modeling environment, which were then used to identify optimal positions of two openings of a zone. The effect of the selected opening positions was validated with building energy simulations; (3) results: The cross-comparison study of different window positions based on different geographical locations quantified the impact on natural ventilation effectiveness; and (4) conclusions: The optimized window position was shown to be effective, and some optimal solutions contradicted the typical cross-ventilation strategy.
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Kim. "A Study on ventilation characteristics in bidirectional traffic tunnels – with emphasis on the natural ventilation." Journal of Korean Tunnelling and Underground Space Association 16, no. 6 (2014): 561. http://dx.doi.org/10.9711/ktaj.2014.16.6.561.

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Gaczoł, Tomasz. "Natural balanced ventilation. Simulations part 2." E3S Web of Conferences 49 (2018): 00026. http://dx.doi.org/10.1051/e3sconf/20184900026.

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The paper is devoted to test results of air flow through natural ventilation supply-exhaust ducts in the rooms located on the upper floor of the building that were conducted in ANSYS Fluent software. Three types of solutions were selected for the tests: air inflow into the room through the air intake located at the basement level, air inflow through the window ventilator (although no longer used, this solution can be found in many existing residential buildings) and the natural ventilation system supported with the so-called “solar chimney” that is usually a glass superstructure, located on the roof of the building above the ventilation ducts. All simulations were conducted with an outdoor temperature of +3 degrees C. The indoor temperature is + 20 degrees C, considered to be the minimum thermal comfort level. The simulations concerned such issues as: pressure system inside the room and in the exhaust duct, distribution of air temperatures in the room, vector direction of air flow through supply and exhaust ducts and in the room. Tests conducted using a computer method of air flow analysis in ducts and in the analysed room indicate that the developed natural balanced ventilation system is a good solution, especially when building sealing is so common. In all cases presented, it meets the normative regulations and requirements for the ventilation air stream and the air exchange rate in the room. The paper (second part) describes test results concerning the room located on the upper floor of the building, i.e. with a long 9-meter long supply duct and a short 3-meter long exhaust duct.
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Ávila Ferreira, Vinícius. "Soundproof Window - Natural Ventilation." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 3 (August 1, 2021): 3294–304. http://dx.doi.org/10.3397/in-2021-2361.

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Expansion of brasilians cities worsen noise pollution in these places, forcing people to maintain their doors and windows closed. Domestic environment enclosing lead to necessity of air conditioning system, however the frequent use of the equipment may cause many health problems, such as respiratory difficulties and spread of diseases , not to mention high costs with energy. Considering these facts, there is the need of soundproofing windows with air supply , that allows passage of air without noise passage, guarantee a well-ventilated environment, with thermic and acoustic comfort without the use of acclimatisation systems . we have developed two prototypes with significant opening that allows air supply (passage) (0,35m2) and noise reduction (Rw+Ctr) reaching 8 to 10 dB. In the first study, we considered people inhabiting really noisy surrounding areas, who has already installed a regular window. In this particular case, we developed a soundproofing window air supply that can be installed over the existing one. A second study considered new constructions to focus the environment where the person sleeps and then elaborate a soundproofing window air supply for bedrooms.
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Dissertations / Theses on the topic "Natural ventilation"

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Kenton, Amanda Gail. "Natural ventilation in theatre design." Thesis, University of Cambridge, 2006. https://www.repository.cam.ac.uk/handle/1810/252011.

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Li, Rong. "Natural ventilation of atrium spaces." Thesis, University of Sheffield, 2007. http://etheses.whiterose.ac.uk/6112/.

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This research is aimed to develop a series of design guidelines and relevant prediction tools for the incorporation of natural ventilation in atrium spaces as a passive cooling strategy. Focused on the geometrical and thermal characteristics of atrium buildings, four issues related to this purpose are investigated in this work including thermal comfort, wind-induced ventilation, buoyancy-induced ventilation and combined buoyancy and wind driven ventilation: In order to identify when passive cooling strategies are needed for atrium spaces, a new thermal comfort assessment method which enables the treatment of the solar radiation and non-uniform environment is developed using M.ATLAB as the data exchange platform. It is found that high mean radiant temperature (MRT) can be a more significant factor contributing to the thermal discomfort of the space when the internal occupants' level is irradiated by the sun rays. It is also shown that the air temperature at the occupants' level is mostly affected by the temperatures of the surfaces at lower levels and the temperatures at the roof level and the upper areas generally have little influence on the air temperature at the occupants' level. The study of wind-induced ventilation is concerned with the airflow through roof openings since the atrium is' often placed in the centre of a building and· as a result the openings at lower levels are not available. In this way the air movement in the space is actually driven by the recirculation rather than the direct main flow from the wind. Three. possible flow patterns, and related controlling forces for each flow pattern are defined first, based on which the impacts of the design parameters on the ventilation performance are investigated by CFD techniques and design guidelines are developed accordingly. The effects of the location of heat source and the control of the neutral level when bidirectional flow occurs are studied for buoyancy-driven natural ventilation of atrium spaces. The tendency of the heat source efficiency with the variation of. its location is examined and the optimised location for the heat source is suggested, based on which the guidelines for the selection of materials for the atrium internal surfaces are made. A series of new' algorithms are also developed for the prediction of neutral level when bi-directional flows occur and validated with CFD simulations. The investigation of the combined ventilation focuses on the condition where wind forces and buoyancy forces partly assist each other and partly oppose each other, and it is found that the phenomenon of solution multiplicity still exists for this condition and different solutions may have different ventilation performance depending on the initial conditions.
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Chen, Shaw-Bing. "Natural ventilation generates building form." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/65048.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1996.
Includes bibliographical references (leaves 149-151).
Natural ventilation is an efficient design strategy for thermal comfort in hot and humid climates. The building forms can generate different pressures and temperatures to induce natural ventilation. This thesis develops a methodology that uses a computational fluid dynamics (CFD) program. The purpose of the CFD program is to assist architects to design optimum building form for natural ventilation. The design of a cottage in Miami, Florida demonstrates the application of this methodology. The first phase of this methodology is to create an input file for the CFD program. The input file uses wind velocity, wind direction, and air temperature of the site to simulate the weather. Different weather conditions can be generated through modification of the first input file. The second phase of this methodology is to develop building forms. The CFD programs can simulate airflow in different building forms by changing the building geometry in the input files. The program calculates the airflow pattern, velocity, and temperature for different forms. The printouts of the simulations allow architects to understand the airflow behavior in spaces with different forms. This thesis also uses the CFD program to study variance between the proposed and the actual results of a design. As demonstrated in a sports museum in Washington, DC, this case study clearly displays a difference between the intentions of the architect and the results of CFD calculation. Some problems appear in developing CFD models. However, when the input files are correctly defined, and the calculations converge, very few computational problems appear in developing building forms. Therefore, architects can easily use the CFD programs to develop building form after the input files are correctly defined.
by Shaw-Bing Chen.
M.S.
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Vad-Schütt, Klockervold Beatrice. "Natural ventilation and behavioural differences." Thesis, KTH, Energiteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-192156.

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To open a window can feel natural when experiencing frowsty air, a high room temperature, or stuffiness. Regardless of the purpose of the natural ventilation, heat is being let out and thereby energy. The problem with this arises for instance when planning new real estate constructions when ventilation of this kind is an individual behaviour dependent factor, and thereby impossible to exactly predetermine. Today, a relatively unevaluated standard value is used for annual energy losses at 4 kWh/m2, but considering that these losses are hard to measure it is uncertain how well this number matches reality. Besides, the natural ventilation behaviour and the use of energy differs from household to household. The purpose was to examine the average natural ventilation behaviour in households, whether some groups of people ventilate more than others, which the reasons of ventilating are, how large effect one person’s ventilation behaviour can have on his or hers neighbours, and also how the needs of ventilation and the amount of used energy will look in the future. To answer this a thorough literature study, a couple of preparing interviews for the survey template, a survey about ventilating behaviour, and a simple example calculation about heat transferring through partition walls was done. Important results obtained from this is that: · Natural ventilation behaviour depend on both age and property. · Older age groups ventilate more than younger. People between 30-50 years ventilate half as much as people between 30-50 years and a third as much as people over 50.People between 50-70 years and older ventilate approximately equally. · People living in buildings of 10-50 m2 and over 100 m2 ventilate approximately equally while people in buildings of 50-100 m2 ventilate 35% more. · Detached houses and apartments are naturally ventilated as often but apartments are ventilated more than an hour longer each session, which results in that apartments are ventilated 50 % more. · 71 % of all people does not shut off their heating sources during natural ventilation. · Frowsty air represents 47 %, high room temperatures represents 35 % and the want to get closer to the outside nature in any way represents 14 % of the reasons for ventilating. · Heat conduction from one apartment to another due to natural ventilation costs at the most 37,23 SEK a year. In the long run the results from this survey with more additional and extensive examinations, could lead to more accurate standard values used in energy calculations for new constructions. Depending on property and probable age of future inhabitants less uncertain calculations could be made. Studies and analyses was limited to Nordic climate and especially to the second and third climate zones of Sweden. The main reason for this was that the participants of the survey and interviews resided in this area. Beside this, the only properties which has been analysed are residences and therefore not office buildings or other real estate’s not resided by people.
”Att öppna ett fönster” kan kännas naturligt vid upplevd dålig luft, för hög temperatur eller instängdhet. Men oavsett vad orsaken för vädring är så släpps värme ut och därmed energi vilket ger problem bland annat vid planering av byggnationer av nya fastigheter. Detta då vädring av detta slag är en individuell beteendeberoende faktor och därmed omöjlig att exakt förutbestämma. Idag används ett relativt outvärderat standardvärde från Boverket för energiförluster på 4 kWh/m2 per år men då dessa förluster är ytterst svåra att mäta är det oklart hur väl siffran stämmer överens med verkligheten. Dessutom skiljer sig vädringsbeteendet och energianvändningen åt från hushåll till hushåll. Syftet var att undersöka hur mycket bostäder vädras i genomsnitt, om vissa grupper av människor vädrar mer än andra, vad orsakerna till vädring är, vilken effekt en människas vädringsbeteende kan ha på intilliggande bostäders energianvändning, samt hur vädringsbehovet och mängden använd energi kommer se ut i framtiden. För att besvara detta gjordes en grundlig litteraturundersökning, ett antal intervjuer som förberedelse för en enkätmall, en enkätundersökning om vädringsbeteende, samt en enkel exempelberäkning om värmeöverföring från en bostad till en annan. Viktiga resultat som erhållits är att: · Vädringsbeteende beror av både ålder på de boende samt bostadstyp. · Äldre åldersgrupper vädrar i genomsnitt mer än yngre. Personer mellan 18- 30 år vädrar hälften så mycket som personer mellan 30-50 år och en tredjedel så mycket som personer över 50 år. Personer mellan 50-70 år och äldre vädrar ungefär lika mycket. · Personer i bostäder på 10-50 m2 och över 100 m2 vädrar ungefär lika mycket medan personer i bostäder på 50-100 m2 vädrar 35 % mer. · Friliggande villor och lägenheter vädras lika ofta men lägenheter vädras över en timme längre per vädringstillfälle vilket för den totala vädringstiden betyder att lägenheter vädras 50 % mer än villor. · 71 % i genomsnitt stänger inte av sina värmekällor under vädring. · Dålig luft, för höga inomhustemperaturer, och vilja att komma närmare naturen på något sätt står för 47 %, 35 % respektive 14 % av vädring. · Värmeöverföring från en lägenhet till en annan till följd av vädring kostar i extremfall max 37,23 kr per år. I det långa loppet kan resultatet från denna undersökning med fler kompletterande och omfattande sådana medföra mer korrekta standardvärden i energiberäkningar för nybyggnationer. Beroende på bostadstyp och trolig ålder för framtida inneboenden skulle mer riktiga beräkningar kunna göras. Undersökningar och analyser avgränsades till Nordiskt klimat och då främst till Sveriges 2a och 3e klimatzon. Orsaken till detta var främst att de tillfrågade i enkäten och intervjuerna var bosatta i detta område. Dessutom har endast bostäder analyserats och därmed exempelvis inte kontorshus eller andra fastigheter som inte innehar sådana.
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Pálsson, Daði Snær. "Hybrid Ventilation : Simulation of Natural Airflow in a Hybrid Ventilation System." Thesis, KTH, Installations- och energisystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-146761.

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This thesis investigates the possibilities of using hybrid ventilation in an office building in Stockholm. The focus is on simulating the natural airflow to find out for which conditions it is sufficient. The thesis is done at White Arkitekter AB in cooperation and under the supervision of environmental specialists working there. A literature study is carried out to study what has been done before in Sweden as well as in other countries. Computer simulations are used to simulate the airflow to examine the conditions and architecture. A synthetic computer model representing a realistic office building is built up as a starting point. The ventilation method for the natural ventilation part is to take air in through the fa\c{c}ade and use the stack effects in an atrium for natural ventilation. By altering the architecture and the sizes of the openings according to the results from the simulations the building is dimensioned and formed to cope with the rules and requirements about the indoor air quality in workplaces. The simulations are done with a multi zone energy performance simulation tool that can simulate airflows and indoor air climate conditions in the zones as well as the energy consumption. Computational fluid dynamics calculations are then used to more closely simulate the conditions within the zones. The results from those simulations suggest that the natural ventilation as a part of a hybrid ventilation works for all the floors of the building for up to 10$\,^{\circ}\mathrm{C}$. The computational fluid dynamics simulations showed that the thermal comfort of all the occupants is fulfilled for these conditions but there is a risk of occupants experiencing draught because of to high velocities in the air especially for the colder outdoor temperatures. For the higher outdoor temperatures the airflow needs to be enforced to ensure sufficient conditions for the occupants and for the colder temperatures mechanical ventilation is needed to decrease heat losses and avoid the risk of draught.
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Wang, Bo. "Unsteady wind effects on natural ventilation." Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/11653/.

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Ventilation stacks are becoming increasingly common in the design of naturally ventilated buildings. The overall aim of the work described is ultimately to improve design procedures for such buildings. This thesis presents the experimental and theoretical investigation of unsteady wind effects on natural ventilation of a single envelope with multiple openings for both wind alone, and wind and buoyancy combined cases. There are two types of openings: namely the sharp-edged orifice and the long opening (stacks being treated as long openings). Two methods are adopted: 1) direct wind tunnel measurements using the hot-wire technique; 2) theoretical analysis using steady and unsteady envelope flow models. For the wind alone experiments, the influences of wind speed, wind direction and opening configuration on flow patterns are studied. For the wind and buoyancy combined tests, the transitional process between wind dominated and buoyancy dominated states are investigated. The direct velocity measurements provide the criteria for testing the validity of the theoretical models, and ways to improve them. Additionally, improvements are made to the experimental techniques: e.g. a precise unsteady calibration method of the hot-wire is developed; improvements of pressure measurements are also investigated. The experimental technique works well with multiple stacks. Even though small openings are used, some dependence of the mean pressure coefficient on opening configuration is observed. The theoretical models also work reasonably well with multiple stacks, yet it is observed that the accuracy of the theoretical models decrease with the increasing number of openings, and is sensitive to the chosen discharge coefficient which defines the characteristics of ventilation openings.
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Livermore, Stephen Richard. "Aspects of buoyancy-driven natural ventilation." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612789.

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BELLERI, Annamaria. "Integrated design methods for natural ventilation." Doctoral thesis, Università degli studi di Bergamo, 2014. http://hdl.handle.net/10446/30436.

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Natural ventilation is widely applied to new building design as it is an effective passive measure to reach the Net Zero Energy target. However, the lack of modelling guidelines and integrated design procedures that include technology solutions using passive design strategies to exploit climate potential, frustrate building designers who prefer to rely on mechanical systems. Within the existing natural ventilation modelling techniques, airflow network models seem the most promising tool to support the natural ventilation design as they are coupled with the most widely used building energy simulation tools. This PhD work provides methods to integrate natural ventilation in the whole building design and to improve natural ventilation predictability overcoming some of the barriers to its usage during early-design-stages, such as model zoning, input data estimation, model reliability and results uncertainty. A sensitivity analysis on parameters characterizing different natural ventilation strategies has been performed on a reference office building model considering key design parameters that cannot be clearly specified during early-design-stages. The results underline the most important parameters and their effect on natural ventilation strategies in different climate types. The airflow network modelling reliability at early stage design phases has been tested by comparing early-design-stage model results with output results from a detailed model as well as with measured data of an existing naturally ventilated building. Results underline the importance of an optimized control strategy and the need of occupant behaviour studies to define better window opening control algorithms to be included in building dynamic simulation tools. Early-design-stage modelling caused an overestimation of natural ventilation performances mainly due to the window opening control standard object implemented in building dynamic simulation tools, which assume all the windows within the same zone are operated at the same way. With sufficient input data (identify in the research work), airflow network models coupled with building energy simulation tools can provide reliable informative predictions of natural ventilation performance. Finally, natural ventilation design guidelines are proposed to explain how existing design tools and methods can be applied within the whole design process, taking into account technology solutions for triggering the natural ventilation.
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BELLERI, Annamaria. "Integrated design methods for natural ventilation." Doctoral thesis, Università degli studi di Bergamo, 2014. http://hdl.handle.net/10446/222111.

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Natural ventilation is widely applied to new building design as it is an effective passive measure to reach the Net Zero Energy target. However, the lack of modelling guidelines and integrated design procedures that include technology solutions using passive design strategies to exploit climate potential, frustrate building designers who prefer to rely on mechanical systems. Within the existing natural ventilation modelling techniques, airflow network models seem the most promising tool to support the natural ventilation design as they are coupled with the most widely used building energy simulation tools. This PhD work provides methods to integrate natural ventilation in the whole building design and to improve natural ventilation predictability overcoming some of the barriers to its usage during early-design-stages, such as model zoning, input data estimation, model reliability and results uncertainty. A sensitivity analysis on parameters characterizing different natural ventilation strategies has been performed on a reference office building model considering key design parameters that cannot be clearly specified during early-design-stages. The results underline the most important parameters and their effect on natural ventilation strategies in different climate types. The airflow network modelling reliability at early stage design phases has been tested by comparing early-design-stage model results with output results from a detailed model as well as with measured data of an existing naturally ventilated building. Results underline the importance of an optimized control strategy and the need of occupant behaviour studies to define better window opening control algorithms to be included in building dynamic simulation tools. Early-design-stage modelling caused an overestimation of natural ventilation performances mainly due to the window opening control standard object implemented in building dynamic simulation tools, which assume all the windows within the same zone are operated at the same way. With sufficient input data (identify in the research work), airflow network models coupled with building energy simulation tools can provide reliable informative predictions of natural ventilation performance. Finally, natural ventilation design guidelines are proposed to explain how existing design tools and methods can be applied within the whole design process, taking into account technology solutions for triggering the natural ventilation.
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Jerräng, Carlstedt Ludwig. "A comparison between emergency ventilation systems semi-transvers ventilation and natural ventilation in Road Tunnel A." Thesis, Luleå tekniska universitet, Byggkonstruktion och brand, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65671.

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Books on the topic "Natural ventilation"

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Fordham, Max. Natural ventilation. [U.K.]: Pergamon, 1999.

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Etheridge, David. Natural Ventilation of Buildings. Chichester, UK: John Wiley & Sons, Ltd, 2011. http://dx.doi.org/10.1002/9781119951773.

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Martin, A. J. Control of natural ventilation. Bracknell: BSRIA, 1996.

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Z, Brown G., University of Oregon. Energy Studies in Buildings Laboratory, Better Bricks program of the Northwest Energy Efficiency Alliance, and Seattle City Light, eds. Natural ventilation in Northwest buildings. Eugene, Oregon: University of Oregon, 2004.

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Gaze, A. I. Passive ventilation: A method of controllable natural ventilation of housing. High Wycombe: Timber Research and Development Association, 1986.

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Chartered Institution of Building Services Engineers., ed. Natural ventilation in non-domestic buildings. London: CIBSE, 2005.

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Natural ventilation of buildings: Theory, measurement and design. Wiley: Hoboken, 2012.

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Institution, British Standards. Code of practice for ventilation principles and designing for natural ventilation. 2nd ed. London: B.S.I., 1991.

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1949-, Grazzini Giuseppe, ed. Cool power: Natural ventilation systems in historic buildings. Hauppauge, N.Y: Nova Science Publishers, 2009.

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1956-, Santamouris M., Allard Francis, European Commission. Directorate-General for Energy., and ALTENER Programme, eds. Natural ventilation in buildings: A design handbook. London: James and James (Science Publishers) Ltd., 1998.

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Book chapters on the topic "Natural ventilation"

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Zheng, Xiaohong, Zhenni Shi, Zheqi Xuan, and Hua Qian. "Natural Ventilation." In Handbook of Energy Systems in Green Buildings, 1–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49088-4_8-1.

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Zheng, Xiaohong, Zhenni Shi, Zheqi Xuan, and Hua Qian. "Natural Ventilation." In Handbook of Energy Systems in Green Buildings, 1227–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-49120-1_8.

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Jones, James, and Demetri Telionis. "Natural Ventilation." In Aeroform, 118–59. New York: Routledge, 2022. http://dx.doi.org/10.4324/9781003167761-6.

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Yang, Tong, and Derek J. Clements-Croome. "Natural Ventilation natural ventilation in Built Environment natural ventilation in-built environment." In Encyclopedia of Sustainability Science and Technology, 6865–96. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_488.

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Yang, Tong, and Derek J. Clements-Croome. "Natural Ventilation natural ventilation in Built Environment natural ventilation in-built environment." In Sustainable Built Environments, 394–425. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-5828-9_488.

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Cook, Malcolm, and Alan Short. "Natural Ventilation of Auditoria." In A Handbook of Sustainable Building Design and Engineering, 492–505. Second edition. | Abingdon, Oxon ; New York, NY : Routledge, [2018]: Routledge, 2018. http://dx.doi.org/10.1201/9781315172026-36.

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Hassan, George. "Natural and Mechanical Ventilation." In Building Services, 1–35. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-11952-3_1.

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Etheridge, David. "Design Procedures for Natural Ventilation." In Advanced Environmental Wind Engineering, 1–24. Tokyo: Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-55912-2_1.

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Beausoleil-Morrison, Ian. "Air infiltration and natural ventilation." In Fundamentals of Building Performance Simulation, 259–78. New York : Routledge, 2020. I Includes bibliographical references and index.: Routledge, 2020. http://dx.doi.org/10.1201/9781003055273-19.

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Yang, Tong, and Derek J. Clements-Croome. "Natural Ventilation in Built Environment." In Sustainable Built Environments, 431–64. New York, NY: Springer US, 2018. http://dx.doi.org/10.1007/978-1-0716-0684-1_488.

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Conference papers on the topic "Natural ventilation"

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Su, B., and R. Aynsley. "Natural Ventilation in Residential Subdivisions." In 10th Biennial International Conference on Engineering, Construction, and Operations in Challenging Environments and Second NASA/ARO/ASCE Workshop on Granular Materials in Lunar and Martian Exploration. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40830(188)108.

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Wark, Christopher. "Natural Ventilation Design Using CFD." In ASME 2007 Energy Sustainability Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/es2007-36199.

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In an effort to make buildings healthier and more energy efficient, architects are increasingly incorporating natural ventilation into their design strategies in order to take advantage of free, available wind power. The extent to which natural ventilation can replace forced ventilation in a given building depends on the local climate and specific site utilization. The ASHRAE Standards 55 and 62.1 that cover natural ventilation establish minimal requirements for climate and building openings but also concede that the ultimate responsibility for proving the effectiveness of this technique lies with the design team and the specific requirements of local codes. But how does a design team prove that air is flowing according to plan without actually creating the structure and taking measurements? Only two possibilities exist — regard each room as a very large ratio conduit and apply conventional equations to those spaces, or do a 3-dimensional numerical analysis of the flow path. Numerical analysis, known as Computational Fluid Dynamics (CFD), is now being recognized as the only reliable way to predict natural airflow through a building and assure that adequate air quality and comfort is provided at all points of each room before construction begins. CFD computer programs allow designers to divide a volume into a large number of small regions and calculate the air and heat transfer between each region, minimizing the assumption-related errors that would otherwise occur. Minimizing computational error at the beginning of the design process reduces the risk of costly post-construction order changes that can occur as substandard air quality is discovered. CFD software can vary in its level of sophistication. While the most basic Navier-Stokes heat and mass transfer equations are essential and can be of great use, a proper natural ventilation analysis tool should include calculations for buoyancy, turbulent convection, and the ability to do open boundary modeling. Other features such as local solar loading and transient analysis are also desirable. A comprehensive CFD package can be particularly useful for modeling the complex airflow found in mixed-mode designs and identifying regions of stagnant air, high heat loss or gain, short-circuited airflow, and other conditions that inhibit good building performance and limit the potential for sustainability.
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Sitan Zhu. "Architectural design on natural ventilation." In 2011 International Conference on Multimedia Technology (ICMT). IEEE, 2011. http://dx.doi.org/10.1109/icmt.2011.6003153.

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Yongliang Zhang, Yongliang, and Qinglei Qinglei Tan. "Application of Natural Ventilation in Metal Mine Ventilation System." In 2015 International Conference on Mechanical Science and Engineering. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/mse-15.2016.11.

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Quan Zhou. "Strategies for natural ventilation of residential." In 2011 International Conference on Electric Information and Control Engineering (ICEICE). IEEE, 2011. http://dx.doi.org/10.1109/iceice.2011.5777718.

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Kovac, Martin, Katarina Kovacova, and Anna Sedlakova. "Efficiency of Natural Ventilation in Central Greenhouse of Botanical Garden in Kosice." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.263.

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The object of paper is analysis of natural ventilation system in central greenhouse of Botanical garden in Kosice. The greenhouse was refurbished in 2015. The existing greenhouse covering from glass panels was replaced for polycarbonate panels. The ventilation system of central greenhouse is natural and there are used openings in covering (wall, roof). It is combination of thermally and wind driven ventilation. The main aim of contribution is to analyse different modes of natural ventilation during summer period mainly. The important factors that influence efficiency of natural ventilation in greenhouse are location and area of openings, temperature stratification in greenhouse, solar radiation level, wind speed and direction too. If the greenhouse is ventilated naturally only through external windows (roof windows are closed) the efficiency of ventilation is very poor. The defined modes of natural ventilation search the right location and size of opened windows in order to achieve the most efficiency ventilation of indoor environment. For this purpose the progressive dynamic simulation tool DesignBuilder is used where the geometrical and specific calculated model of whole central greenhouse was created.
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Butera, Frank, and Keith Hewett. "Acoustic Performance of Louvred Facades for Brisbane Domestic Airport: An Integrated Approach." In ASME 2012 Noise Control and Acoustics Division Conference at InterNoise 2012. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ncad2012-1393.

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Maximising cross ventilation is a low energy method of naturally ventilating and providing heating and cooling to deep plan spaces. Significant reduction in the emission of greenhouse gases can be achieved through minimising the use of mechanical systems in regions with climatic conditions that support the use of natural ventilation. Arup has provided input into the design of a louvered facade for the control of external noise for Brisbane Domestic Airport. A full scale prototype facade was constructed and noise transmission loss measurements were undertaken. The results indicate that significant noise reduction can be achieved to enable compliance with the internal noise limits for airport terminals, whilst using natural ventilation. The findings from this research will directly benefit building designers and innovators in the pursuit of achieving sustainable building design.
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Abdo, Peter, and B. P. Huynh. "Effect of Combining Buoyancy Driven and Winddriven Ventilation in a Two Dimensional Room Fitted With a Windcatcher." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70212.

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Natural ventilation is the process of supplying and removing air through an indoor space by natural means. There are two types of natural ventilation occurring in buildings: winddriven ventilation and buoyancy driven ventilation, or stack ventilation. The most efficient design for natural ventilation in buildings should implement both types of natural ventilation. Stack ventilation which is temperature induced is driven by buoyancy making it less dependent on wind and its direction. Heat emitted causes a temperature difference between two adjoining volumes of air, the warmer air will have lower density and be more buoyant thus will rise above the cold air creating an upward air stream. Combining the winddriven and the buoyancy driven ventilation will be investigated in this study through the use of a windcatcher natural ventilation system. Stack driven air rises as it leaves the windcatcher and it is replaced with fresh air from outside as it enters through the positively pressured windward side. To achieve this, CFD (computational fluid dynamics) tool is used to simulate the air flow in a two dimensional room fitted with a windcatcher based on the winddriven ventilation alone and on the combined buoyancy and winddriven ventilation.
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Subudhi, Sudhakar. "Mathematical Modelling of Stack-Driven Natural Ventilation in Buildings." In ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/es2014-6491.

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In this paper, mathematical modeling of stack-driven natural ventilation in buildings is performed. Stack-driven natural ventilation is due to only buoyancy forces generated by the presence of heat sources at the bottom of the room. There are two cases have been taken: (1) Transient natural ventilation in fully insulated buildings and (2) Transient natural ventilation in partially insulated buildings. In first case, it is assumed that there is no heat transfer through walls and roof and only heat transfer through openings of door and window. Also there is a distributed heat source at the floor. Since the convection is at a high Rayleigh number, the room can be assumed to have a well-mixed interior. The complex heat balance equations are solved analytically for the internal temperature.
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Nateghi, Morteza, and Steven W. Armfield. "Natural Convection Ventilation in Fully Open Enclosures." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22404.

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The present study is concerned with natural convection ventilation in a two dimensional fully open enclosure (cavity) with thermally stratified ambient for both transient and steady-state flow. The left hand vertical wall of the enclosure is heated and the right hand facing boundary is open, with the top and bottom boundaries insulated. The numerical solutions will be obtained by solving the Navier-Stokes equations and the temperature transport equation on a non-staggered grid using an unsteady second-order finite-volume scheme with a pressure correction equation used to simultaneously provide an update for the pressure field and enforce the divergence free condition. Results will be presented for Rayleigh numbers in the range 1 × 105 to 1 × 1010 with Prandtl numbers in the range 0.2 to 1.0. It will be shown that the flow transits from steady to unsteady, at full development, with increasing Rayleigh number for Pr <= 1.0, as observed for the similar closed enclosure flow. For higher Prandtl numbers the flow is steady at full development for the full range of Rayleigh numbers considered, again as for the similar fully closed enclosure. Streamline and temperature contour plots will be presented to illustrate the basic flow behaviours and to demonstrate the effect of the Prandtl number.
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Reports on the topic "Natural ventilation"

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Danko, G., and S. Saterlie. Natural ventilation of an exothermic waste repository. Office of Scientific and Technical Information (OSTI), February 1996. http://dx.doi.org/10.2172/201543.

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Dols, W. Stuart, and Steven J. Emmerich. LoopDA - natural ventilation design and analysis software. Gaithersburg, MD: National Institute of Standards and Technology, 2003. http://dx.doi.org/10.6028/nist.ir.6967.

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Hurel, Nolwenn, Max H. Sherman, and Iain S. Walker. Simplified Methods for Combining Natural and Mechanical Ventilation. Office of Scientific and Technical Information (OSTI), June 2015. http://dx.doi.org/10.2172/1469162.

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Hurel, Nolwenn, Max H. Sherman, and Iain S. Walker. Simplified Methods for Combining Natural and Mechanical Ventilation. Office of Scientific and Technical Information (OSTI), June 2015. http://dx.doi.org/10.2172/1512199.

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Emmerich, Steven J., W. Stuart Dols, and James W. Axley. Natural ventilation review and plan for design and analysis tools. Gaithersburg, MD: National Institute of Standards and Technology, 2001. http://dx.doi.org/10.6028/nist.ir.6781.

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Singer, Brett, wanyu Chan, William Delp, iain Walker, and Haoran Zhao. Effective Kitchen Ventilation for Healthy Zero Net Energy Homes with Natural Gas. Office of Scientific and Technical Information (OSTI), January 2021. http://dx.doi.org/10.2172/1829688.

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Kayo, Genku, and Nobue Suzuki. Measurement of air change behaviour at Finnish apartment rooms. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau541579038.

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While the expectation for natural ventilation is increasing under the context of COVID-19, fresh air at residential houses in Finland is basically guaranteed by mechanical ventilation systems. It means that natural ventilation is not considered as an available potential of ventilation in Finnish building regulation. Even if the mechanical ventilation system handles the air quality, the natural ventilation by window opening is expected to be a supportive measure. However, there is not enough measured data about how much air change is fulfilled by window opening. The article describes the evaluation of fresh air accessibility by window openings at six Finnish apartments. To understand the behaviour of air change, CO2 mass balance equation model was applied. The results of summer season clarified that the actual number of air changes are 085 to 1.54 times per hour with one-side opening. The CO2 mass balance model for apartments, which is a kind of tracer gas decay method, is an effective way to estimate the actual number of air changes without preventing occupants’ daily living. Since some buildings, such as residential, school, churches, are affected by the moisture problems, the management of moisture behaviour by both natural and mechanical ventilation is essential.
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Gross, Steven. A Feasibility Study of Model-Based Natural Ventilation Control in a Midrise Student Dormitory Building. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.449.

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Axley, James W. Application of natural ventilation for U.S. commerical buildings : climate suitability design strategies [and] methods modeling studies. Gaithersburg, MD: National Institute of Standards and Technology, December 2001. http://dx.doi.org/10.6028/nist.gcr.01-820.

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Willits, Daniel H., Meir Teitel, Josef Tanny, Mary M. Peet, Shabtai Cohen, and Eli Matan. Comparing the performance of naturally ventilated and fan-ventilated greenhouses. United States Department of Agriculture, March 2006. http://dx.doi.org/10.32747/2006.7586542.bard.

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The objectives of this project were to predict the performance of naturally and fan-ventilated greenhouses as a function of climate, type of crop, evaporative cooling and greenhouse size, and to estimate the effects of the two cooling systems on yield, quality and disease development in the different crops under study. Background In the competitive field of greenhouse cultivation, growers and designers in both the US and Israel are repeatedly forced to choose between naturally ventilated (NV) and fan ventilated (FV) cooling systems as they expand their ranges in an effort to remain profitable. The known advantages and disadvantages of each system do not presently allow a clear decision. Whether essentially zero operating costs can offset the less dependable cooling of natural ventilation systems is question this report hopes to answer. Major Conclusions US It was concluded very early on that FV greenhouses without evaporative pad cooling are not competitive with NV greenhouses during hot weather. During the first year, the US team found that average air temperatures were always higher in the FV houses, compared to the NV houses, when evaporative pad cooling was not used, regardless of ventilation rate in the FV houses or the vent configuration in the NV houses. Canopy temperatures were also higher in the FV ventilated houses when three vents were used in the NV houses. A second major conclusion was that the US team found that low pressure fogging (4 atm) in NV houses does not completely offset the advantage of evaporative pad cooling in FV houses. High pressure fog (65 atm) is more effective, but considerably more expensive. Israel Experiments were done with roses in the years 2003-2005 and with tomatoes in 2005. Three modes of natural ventilation (roof, side and side + roof openings) were compared with a fan-ventilated (with evaporative cooling) house. It was shown that under common practice of fan ventilation, during summer, the ventilation rate is usually lower with NV than with FV. The microclimate under both NV and FV was not homogeneous. In both treatments there were strong gradients in temperature and humidity in the vertical direction. In addition, there were gradients that developed in horizontal planes in a direction parallel to the direction of the prevailing air velocity within the greenhouse. The gradients in the horizontal direction appear to be larger with FV than with NV. The ratio between sensible and latent heat fluxes (Bowen ratio) was found to be dependent considerably on whether NV or FV is applied. This ratio was generally negative in the naturally ventilated house (about -0.14) and positive in the fan ventilated one (about 0.19). Theoretical models based on Penman-Monteith equation were used to predict the interior air and crop temperatures and the transpiration rate with NV. Good agreement between the model and experimental results was obtained with regard to the air temperature and transpiration with side and side + roof ventilation. However, the agreement was poor with only roof ventilation. The yield (number of rose stems longer than 40 cm) was higher with FV
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