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Power-producing and Environmental Strategy of Czech Republic
Urbánek, Štěpán ; Brázdil, Marian (referee) ; Špiláček, Michal (advisor)
This bachelor thesis deals with energy and environmental strategy of Czech Republic. Part of this work is the description of international and intrastate documents which describes conditions and strategy objectives that not only our country must reach and fulfil them. Next is processed structure of the energy mix of Czech Republic and its predictable progress. In the next part of the work there is a characterization of possibilities how to produce electricity by renewable resources or nuclear energy and concept of using these sources in the future. The last part of the work contains prospect of reducing emission greenhouse gases.
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Autonomous power system
Královský, Jaroslav ; Brázdil, Marian (referee) ; Pospíšil, Jiří (advisor)
This diploma thesis deals with available technologies when designing autonomous house. Theoretical part of this thesis shows and presents options for gaining energy from renewable resources and options for energy storage. The practical part of the thesis is focused on designing partly autonomous system for model house using renewable resources. In the thesis are three options of gainig energy for the house, from which is chosen the best option.
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Design of heat source for heating
Janata, Petr ; Brázdil, Marian (referee) ; Baláš, Marek (advisor)
The aim of this bachelor’s thesis is to design a heat source for family house. First chapter describes heat sources that are available for heating. Their advantages and weaknesses are presented. Based on heat loses, seven variants are selected, which are economically compared.
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Heat exchanger for waste heat utilization
Švach, Šimon ; Brázdil, Marian (referee) ; Špiláček, Michal (advisor)
This bachelor thesis deals with waste heat recovery using a heat exchanger. The aim of the thesis was to design a heat exchanger for the recovery of hot water from the cooling of a concentrator photovoltaic panel. The thesis is divided into theoretical and practical parts. In the theoretical part, a literature research on heat recovery and photovoltaics was carried out. In the practical part, a heat exchanger has been designed for a specific solution.
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Cogeneration
Pawlitko, David ; Brázdil, Marian (referee) ; Kracík, Petr (advisor)
This bachelor’s thesis deals with the issue of cogeneration. At the beginning of the thesis, main principles and application of cogeneration are described. Further, various kinds of production of electricity and heat are introduced including comparison of advantages and disadvantages of concrete technology. Another possibility of primary fuel savings are presented too. Thesis also contains Czech and European legislation related to cogeneration, including some changes which bring for year 2013. At the end, heating industry in Czech Republic with its current problems is mentioned.
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Thermoelectric Power Generation System
Brázdil, Marian ; Nerud, Pavel (referee) ; Pospíšil, Jiří (advisor)
In the last decade there is a rising interest in thermoelectric applications. Thermoelectric generators enabling the direct conversion of the heat into the electricity become attractive. This fact is caused by the demands of environmental operation and saving primary resources. Scientists intensively investigate and develop new materials and structures suitable for these applications. The efficiency of the thermoelectric conversion progressively increases. Unfortunately we have no available materials with sufficient thermoelectric properties which could provide cost-competitive price. Thermoelectric generators seem to be useable devices. For example, in case of the unused waste heat using of the thermoelectric generator can increase the overall effectiveness of the unit despite the low efficiency of the generator. This master thesis deals with the issue of the Peltier modules representing the main part of the thermoelectric generators. The physical principles and structures of the thermoelectric modules and the possibility of thermoelectric power production are described here. In the practical part of this thesis the design of the low power generator utilizing waste heat from biomass boiler Verner A 251.1 is proposed.
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Comparison of Methods of Determination of Boiler Efficiency
Kubiš, David ; Brázdil, Marian (referee) ; Lisý, Martin (advisor)
This bachelor's thesis deal with boiler efficiency and boiler efficiency assesment. Aim of the thesis is equation theoretic and experimental values of boiler efficiency. The first part of thesis is research methods for boiler efficiency assesment. This part describes the methods for determining boiler efficiency and theoretical comparison of these methods. The second part contains experimental measurement of the boiler efficiency and subsequently comparison and evaluation.
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Less usual technologies of biomass utilization
Červenáková, Jana ; Brázdil, Marian (referee) ; Baláš, Marek (advisor)
The main aim of the bachelor thesis is to elaborate less usual technologies of biomass utilization. In the first part of thesis are individual technologies described and divided. The second part of the bachelor thesis describes the concept of biomass and its specific featuress. The last part describes selected applications of less traditional technologies in the Czech Republic which produce electric power by using biomass fuel.
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Applications of thermoelectric generators
Kopřiva, Lukáš ; Pospíšil, Jiří (referee) ; Brázdil, Marian (advisor)
This bachalor thesis is about thermoelectric generators and their utilization. Basic physical principles of thermoelectric conversion and design of thermoelectric devices are described at the beginning. Next part of thesis is related to practical applications of themoelectric generators. Applications that using fossil fuels, waste heat and renewable energy are mentioned. Conclusions and evaluations of their usefulness are made at the end.
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Pyroelectric conversion and pyroelectric generators
Kaše, Jakub ; Pospíšil, Jiří (referee) ; Brázdil, Marian (advisor)
Presented bachelor thesis deals with pyroelectric conversion and pyroelectric generator applications. The principle of pyroelectric phenomenon and its origin in materials are described and known materials exhibiting significant pyroelectric properties are compared. Furthermore, pyroelectric generator constructions are presented and compared, an overview of implemented pyroelectric devices is created and possible future applications of pyroelectric generators are described. Following this, a comparison of pyroelectric conversion to alternative conversion methods is made and pyroelectric generators’ potential is evaluated with special focus on waste heat utilization. Current pyroelectric devices are able to reach thermal to electric conversion efficiency of 1,3 % or power density of 120 W/m2 while powered by a heat source with maximum temperature of 250 °C or lower. With regard to these results, this technology is potentially useable and further development and applications can be predicted in the future.
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