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Dissertations / Theses on the topic 'Dodávka energie'
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1
Najbrtová, Zuzana. "Dodávka energie pro skleníkovou produkci." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443195.
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The import of the vegetable has prevailed in the long run over the own production. In connection with this reality and increasing demand for the food with higher quality the production greenhouse is more often built. The providing heat, cold and electricity for the year-round operation is related to the construction and working of these objects. The theoretical part of this theses describes possible ways how to cover energy consumption for the model greenhouse in Kožichovice, Třebíč region. The heat losses and the year-round heat consumption were stated for the selected model and compared with the exact values from Kožichovice. The following method of energy supply was selected based on the calculated energy consumption - the separate cogeneration unit, cooperation of several cogeneration units, a biogas station, a heat pump and central heating system. These methods of energy supply were subjected to technical and economical comparison.
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Lakomý, Vojtěch. "Návrh rozvoje sítě 22 kV v zadané části Brna." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217200.
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The goal of this thesis is to design measures of the distribution network in Brno to ensure a supply of electricity to its consumers in required quantity, quality and reliability. This project will be solved in the program called PAS DAISY Off-Line v.4.00 Bizon. At first we make an analysis of the steady state of the distribution network. We check load of transformer stations 110/22 kV, overhead and cable lines if they operate in allowed limits. Then we complete or correct reserved power drains of big consumers of electricity in the model of distribution system. From the calculation of the steady state of the distribution network we will probably find out that some parts of the system are overloaded. Therefore we suggest changes for it (like switching over circuits, installation of new transformer stations and circuits), which should ensure safety and reliability of operations in the distribution system.
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Dočekal, David. "Měřicí pracoviště pro systém vzdálené dodávky energie." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242852.
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This thesis is focused on the creation of measuring workplace for remote power supply system. This is the measuring of the workplace, engaged in the processing of measured data, the production of electrical energy made by a photovoltaic panel and wind turbines. In the theoretical part, the reader is familiar with the issue of renewable energy sources. The first chapter is about the energy of the wind. Here is described the emergence of the wind, the basic division of wind power, through the production of electrical energy to the measurement itself. The second chapter deals with the solar energy. This chapter describes the emergence of the solar energy, photoelectric effect, description of characteristic features and related evaluation of the photovoltaic panel. The reader learns the basic distribution photovoltaic panels here and their manufacturing. The third chapter is devoted to measurement methods and specifying the basic conditions for the evaluation of the operation of wind turbines and photovoltaic panel. In the fourth chapter describes the basic data on individual facilities, which have been selected for this thesis and the involvement of the measuring site. There is also included wind power JPT-100 photovoltaic panels A-130 anemometer TX20ETH, pyranometer SG420 and temperature sensor PT100. Measuring software is described in the fifth chapter. In the last chapter, contains the experimental measurements in the selected time interval and the actual evaluation.
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Radil, Lukáš. "Eliminace diskontinuity dodávky elektrické energie z obnovitelných zdrojů." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-233602.
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Doctoral thesis deals with domain of electric energy storage. It seeks to define the methods of accumulation, which can be used in industrial applications and define the conditions for the use of storage systems in electric power systems with extended penetration of renewable energy sources. In the context of current developments in this field is analyzed detail one of the perspective storage systems - Vanadium Redox Battery (VRB). One of the outcomes of this work is economic and energy analysis of storage systems, which are conceived with a disproportion between production and consumption of energy. The work was supported by the Centre for Research and Utilization of Renewable Energy (CVVOZE) no. CZ.1.05/2.1.00/01.0014 and research project no. FEKT S-11-9.
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Milka, Jiří. "Statistické vyhodnocení nepřetržitosti dodávky elektrické energie v zadané části distribuční sítě." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220171.
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The thesis is focused on the statistical analysis of the continuity of power distribution in a specified part of the distribution network. Its aim is to explain the basic concepts and calculations in reliability distribution of electrical energy, which is an essential element for improving the quality of electricity supplied to end customers. The work is divided into two parts (theoretical part and a practical part), which are further divided into chapters and subchapters according to individual areas of focus. In the introduction the explains the aim and content of the of chapters work. You are also given a specific issue and its explanation. The conclusion summarizes the results of the practical part. The work is supplemented by annexes a list of images, tables, symbols and abbreviations that are used for better clarity and orientation.
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Pavlíček, Michal. "Vytápění a chlazení RD s kombinovaným systémem dodávky tepelné a el. energie." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231820.
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Heating and cooling along with the indoor air quality is now discussed topic not only in the family houses. Goes hand in hand with reducing the energy consumption of buildings. This fact is edited by various laws or Regulations, no matter we discuss new buildings requirements, or for example energy label on older constructions.
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Budovec, Michal. "Zvýšení úrovně spolehlivosti dodávky elektrické energie z hydrocentrály Jasenie do Železiarní Podbrezová." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399598.
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This thesis deals with operation of the Jasenie hydroelectric power plant, which supplies electricity to Železiarne Podbrezová Inc. This thesis describes actual operation, devices and equipment in all substations. The second chapter briefly describes company’s history and activities of the company. The next chapter mentions an overview of the sources of own electricity production. The fourth chapter in detail deals with actual situation of the hydroelectric power plant operation, describes devices and equipment in all substations. It also outlines what measures should be taken to increase the reliability of electricity supply. Next part deals with replacing insulators on the 22 kV line. Sixth chapter is focused on protection this line by multifunctional protection relay and data transfer from HC Jasenie to the building of power engineering. In the next step is designed a backup transformer with bus control for thermal and dynamic effects of the short-circuit current. The last chapter is focused on surge protection in HC Jasenie as well as in the area of Stary závod substation. The results and benefits of this work are summarized in the conclusion. The attachment contains schemes of substations and overall overview scheme, which are used for better understanding of this problem.
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Bobčík, Marek. "Návrh malého jaderného reaktoru pro účely dodávek tepla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230984.
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The objective of this diploma thesis is to assess the suitability of a small nuclear reactor for the purpose of heat supply in small towns and cities. First, all the heat demands of these towns and cities are analysed. Then, a small nuclear reactor to serve these needs is designed and a computational model for burn-up fuel is created. The thesis aims to propose a design of a new heat exchanger. Economic and environmental criteria are taken into account as well and including safety measures. The outcome of this thesis is an evaluation of the whole concept with respect to potential future implementation.
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Bernáth, František. "Rozptýlená výroba a jej vplyv na kvalitu dodávok elektrickej energie." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-233625.
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This work deals with the deployment of distributed power sources into the electric power grid. The nature of these sources causes that the massive integration may experience problems with power quality in the local context, and also overall reliability of supply in the range of interconnected power systems may be endangered. Work is focused on local voltage quality problems with special emphasis on analysis and design of tools (e.g. reactive power compensation units of power plants or dynamic voltage control by transformers 110/22kV) for voltage control in power distribution systems. These tools should be used as a part of uniform concept of voltage control. The proposed concept is involved.
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Kopecký, Václav. "Význam dodávky tepla ze zařízení energetického využití odpadů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400865.
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This thesis is focused on identifying main factors influencing economical rentability of energy generated using incineration of municipal waste. Research was conducted focusing on municipal waste management, waste-to-energy possibilities and the issue of district heating systems, which are important considering the economy of waste-to-energy plants. Main limiting factors were identified using mathematic models adjusted for specific geographic locations.
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Kopecký, Jan. "Energetická bezpečnost ČR." Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-73587.
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Undisputed necessity of energy resources for functioning of our society is obvious at every turn. However, safe and continuous supplies of energy cannot be taken for granted. It is mainly caused by an uneven distribution of energy resources on our planet. It comes as no surprise that possession of energy resources plays an essential role for various reasons, for example it can serve as a tool for enforcing one's economic goals or for strengthening one's political power. Thus, energy security represents a multidimensional issue which needs to be perceived from several different angles. This diploma thesis primarily focuses on energy security of the Czech Republic from the perspective of readiness to deal with interruption of energy supplies and from the perspective of critical infrastructure protection. Due to high complexity of this problematics, and due to the impossibility of the Czech Republic to deal with energy security only on a national level, are the aforementioned issues examined in connection with energy security of the European Union.
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Kovácsik, Miroslav. "Energetická politika Európskej únie - jadrová energia v Európe." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-71790.
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The events of the recent past in the energy department in Europe have shown how big is it's dependency on import of the primary energy resources. In the long run it is obvious that a high dependency on import of resources with the increasing demand of the population will not be able to provide Europe with so much needed easy accessible and reasonably priced energy. The integration process in Europe lasts more than fifty years now but energy policy is even after the ratification of the Lisbon treaty in controll of the national parlaments of member countries. Even though the options and posibilitie of the countries differ in the long run a closer cooperation is mandatory. The thesis is about the united energy policy in Europe and the development it went through since the beginning of the integration process in the fifties of last century. I will describe the main events that formed it as well as the main resources of energy production in the EU. I will explain the term energy security and in the end I will write about nuclear power that is today a vary efficient but after the events of Fukushima also controversial alternative of energy independence.
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Tuček, Jan. "Návrh kogenerační jednotky s výkonem 200 kWe s dodávkou tepla pro sušárnu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231388.
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In this diploma thesis "Cogeneration unit with output 200 kWe" the first part describes the properties, drying and combustion of biomass. The next section deals with the description of the combined production of electricity and thermal energy and gas turbines. In the last part of the diploma thesis is devoted to the design and calculations of thermal cycle in order to achieve maximum efficiency.
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Němec, Jan. "Návrh konfigurace napájecí sítě rozsáhlého strojírenského podniku." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219408.
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This master-thesis analyzes issues of suggestion configuration of power supply network of industrial business. The option of the scheme of the configuration, the voltage level, the way of compensation of the reactive power, the way of the suppretion of the energetic interference and other requirements is included in the main tasks. This option has to be convenient with the requirements of the industrial business. The important point of this proposal is to prevent the influence of the superordinate distribution network. The compensation which keeps the power factor in the prescribed limits is one of the precautions against the influencing of the network. The second precaution is the elimination of energetic interference. The higher voltage, the fluctuation and the asymmetry of the voltage are the interferences which have the biggest impact on the industrial networks. The master-thesis offers the summary of the possibilities and ways of the elimination of the basic elements of the energetic interference.
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Heller, Ondřej. "Akumulace energie z OZE." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218539.
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The objective of the first part of master’s thesis is mapping the potential of various types of renewable sources in Europe and Czech Republic, especially solar energy, wind energy, water energy and biomass. There are described principals and ways of energy generation from these sources, brief overview of current technologies, and also their advantages and limitations. An important part is electric supply continuity from renewable sources, there are large differences and the resulting to restrictions on construction and connecting the units to the power system. In this work there are mentioned some impacts on network and rates of change of supply, some sources are also evaluated in terms of maximum power, that can be connected to the power system in our country. The conclusion of the first part is dedicated to energy storage technologies, which are suitable and usable for renewable sources, there are described their principals, properties, status of development and types of aplications, in which these technologies are used. This chapter also focusses on the price level of each technology. The second part of the thesis deals with 1 MWp on-grid photovoltaic power plant design. This design includes also the redox flow batteries accumulation, the first variant calculates on 24-hour steady energy supply, the second optimalized variant calculates on daily energy supply. There are the accumulation system costs estimated and also the payback period for the both variants. Additionally there is also determined minimum penalization for cost-effective operation. The last part is dedicated to changes of impact on the local grid and changes of system impacts, after the accumulation system is installed.
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Girga, Eduard. "Výpočet spolehlivostních ukazatelů části distribuční sítě E-ON ČR." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218538.
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The aim of this master’s thesis is calculation and analysis of reliability indicators of the company E.ON Česká republika, s.r.o. distribution network in the south Moravia territory (area of former Jihomoravská energetika) for the period of one year, from 1st November 2008 to 31st October 2009. We consider events incurred on overhead or underground lines of level of high voltage or directly connected with these lines. Events originated from extensive disaster interruption of electric energy supply caused by particularly unfavourable external effects are not considered, because network components can not be efficiently dimensioned on those influences. Known aspects of the events are time of origin, time duration, place and cause of failure inception. Analysis of reliability indicators is accomplished according to different point of view. The first aspect is the hours of day, during which the event lasted. The second aspect is the hours of day, during which the event incurred. The third one focuses component pointed as reliable for the origin of the event. The last standpoint is percentage load of the line outlet, on which the event occurred. We can ordain this load as the proportion of current flowing through the line outlet in the time of event inception and of the value of maximum current set up on the protection of the line outlet. Indications mentioned in the last sentence were searched in the dispatcher centre thanks to graphical interface of application RIS JME Brno. In the theoretical part of the work there is described the structure of distribution network and its fundamental influence on the continuity of electric energy supply, the ways of evaluation and increasing of electric energy supply reliability, regulation of continuity of electric energy supply with emphasis on regulation in the Czech Republic valid until 26th February 2010 and since 27th February 2010. The last theoretical part focuses on definition of failure and differentiation of failures according to various aspects.
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Těžký, Jiří. "Vyhodnocení nákladů na penalizace v zadané distribuční síti." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217618.
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Energy system is important for classification of flation of developing countries. Function of energy system is supply electric power of high quality for every customers in system. Requirements of quality are different for individual countries. Reliability of electricity sector system is important parameter in every electricity systems. At the present time are the requirements of quality much higher, because of condition of liberalized market. Each country have different systems of standards of classification of reliability. Penalizations are assign to, when the systems of standards are overrun. Type of penalization is different for each countries. In my work I looked on system of electricity sector system, its reliability, operating, and organization etc. In principle for Czech Republic. Basic documents of electric legislation are described in this work, it is described for Czech Republic and for European Union. Public notice No. 540/2005 Sb. is described. This public notice interpret laws about supplies of electricity and others services in electricity sector system in Czech Republic. Penalizations are described in this public notice. Standards of penalizations are different for each European countries. Various monitoring of penalization are used. Also dividing of penalization is different for each country. At the last part of my work I analyze costs of penalization in required distribution network. Most reason of failure cause are analyzed here. Size of costs of penalization are compared in this part of my work, for changes of standards in required distribution networks. Required countries are Czech Republic, Great Britain and Spain. These countries are compare with each other. I evaluate the worst outlets of required distribution network. The worst outlets are outlets with higher costs of penalizations. These worst outlet I compare for required countries and between each other. At the end of my work I analyze failure causes for the worst outlets in penalization system of Czech Republic.
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Hýl, Petr. "Slovinské národní divadlo v Lublani." Master's thesis, Vysoké učení technické v Brně. Fakulta architektury, 2009. http://www.nusl.cz/ntk/nusl-215582.
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Strang, Mira Inkeri. "Energeticky efektivní Evropa. Zajištění dodávek energie ve Finsku." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-387327.
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This thesis focuses on analyzing the themes that arise from the Finnish energy discourse between the years of 2009-2018. Finland is completely dependent on Russian gas, but as a member state of the European Union (EU), it should consider reducing this dependence and moving towards a common energy policy as a key objective. The EU has struggled to project itself as a unified whole to the global community owing to the fragmented nature of its decision-making regarding the use and procurement of energy. This results in EU member states having bilateral energy relations with Russia. Energy policies differ depending on the member state, also the geographical location of a state plays a significant role. As energy consumption rapidly rises and climate change becomes increasingly evident, non-fossil sources of energy must be taken into use. The development of technology along with the use of renewable forms of energy will further facilitate the battle against climate change. In order for the EU to succeed in one of its major objectives becoming independent in energy matters, it requires to further increase the internal cooperation between member states and to develop an even further consistent energy strategy. With the combination of the chosen theories together with examining the collected research data...
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Záhradníková, Lea. "Aktuální diverzifikační scénáře Ruské federace na jedné straně a zemí V4 na straně druhé v oblasti dodávek zemního plynu na pozadí teorie vzájemné asymetrické závislosti." Master's thesis, 2017. http://www.nusl.cz/ntk/nusl-365129.
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The thesis focuses on current diversification scenarios in the field of gas supply the Visegrad Group (V4) and the Russian Federation relying on the model of asymmetrical interdependence. Russian Federation, the main supplier of natural gas to this region, has lost its status of a reliable partner due to the gas wars with Ukraine in 2006 and 2009, which have negatively affected the supply of natural gas to the EU countries. The research focuses on the current diversification options of V4 countries related to their suppliers and supply routes with respect to their relationship with the Russian Federation; the diversification options for the purchasing markets of the Russian Federation are also analyzed. The author validates the hypothesis that energy relations among the Visegrad countries and the Russian Federation in the field of gas supply are largely controlled by the asymmetric interdependence that is currently exacerbating tensions among the set actors. Current diversification scenarios are presented and evaluated, with the aim of assessing the importance of the projects with regard to actors' energy security. Keywords: interdependence, energy security, diversification, gas supply, gas interconnector, V4, Energy Union, Russian Federation, Nord Stream II, LNG
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KUCHYŇKOVÁ, Ivana. "Krizová připravenost vybrané zoologické zahrady." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-395617.
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The introduction of the theoretical part is devoted to the analysis of threats, another part to the rescue of animals. In the next part, I focused on zoological gardens and evacuation of animals. The last chapter of the theoretical part deals with the evacuation of selected species of animals. When selecting individual species, I focused on those that are most represented in Dvorec Zoo. The aim of my thesis was to create an analysis of the preparedness of the selected zoo to selected crisis situations and to identify the risks of evacuation of the zoo. In order to achieve these goals, I have set research questions - how is the zoo prepared for selected crisis situations? And what are the possible risks associated with evacuating selected species? In the second part of my thesis I focused on the research itself, which included an interview with the director of Dvorec Zoo. Based on the interview and my own observation I processed the KARS method. The KARS method has identified 6 risks that could compromise the operation of Dvorec Zoo. These risks include extreme wind, large-scale gas supply disruption, large-scale electricity supply disruption, snow calamity, and extremely low temperatures. Based on the identified risks, I created a plan for MU solution for Dvorec Zoo. In the MU solution plan, I focused primarily on the impacts on operation, planned measures, procedures and responsible people. Dvorec Zoo will, of course, be provided with this plan.
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Dvořáková, Tereza. "Význam Ázerbajdžánu a Gruzie v nové energetické geopolitice." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-336201.
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The submitted thesis called "The Relevance of Azerbaijan and Georgia in New Energy Geopolitics" deals with the topic of perception of energy security from the perspective of the European Union with special emphasis put on two southern Caucasian countries - Azerbaijan and Georgia. The purpose of this thesis is to analyse the topic by means of the constructivist approach. The theoretical framework is based on the redefined theory of securitization. The methodological basis is represented by the discursive analysis of the official documents issued by the European Union, embedded in the context of European Neighbourhood Policy and the Eastern Partnership initiative respectively whilst taking into consideration the external influence of the Russian Federation in the time period of approximately ten years, i.e. from 2003, when the European Neighbourhood was established, up to the present. The main objective of the submitted thesis is to assess the perception of energy security from the point of view of the European Union and to identify key contextual links and discursive themes that dominated the political discourse of the European Union in particular moments of the respective period.