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Heat storage in solar thermal systems
Mokriš, Lukáš ; Hejčík, Jiří (referee) ; Charvát, Pavel (advisor)
In this bachelor’s thesis are described methods of heat storage in solar thermal systems. Solar energy is retrieved in form of solar radiation, that is processed and stored in the form of sensible heat of solid materials and liquids, as heat of fusion of some material or as chemical heat, which is created during reversible chemical reactions.
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Vacation property in stand-alone mode
Svoboda, Jan ; Martinec, Jiří (referee) ; Suk, Ladislav (advisor)
This bachelor thesis deals with the supply of electricity for remote vacation property. It addresses the issue of how each technology of alone systems are applied to a particular object, as well as their financial page. At the end are technologies compared and the most suitable one is recommended.
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Energy from renewable sources and its storage
Navrátil, Ondřej ; Moskalík, Jiří (referee) ; Škvařil, Jan (advisor)
This work deals with renewable sources of energy and storage options. It is focused on electricity generation. There are presented types of renewable resources suitable for electricity production. The second part is an overview of all systems used for energy storage. In the conclusion is an assessment of renewable sources and a comparison of methods of energy storage.
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Accumulation of electricity from renewable sources
Plíšek, Petr ; Špiláček, Michal (referee) ; Pospíšil, Jiří (advisor)
This diploma thesis deals with the issue of accumulation of electricity produced by renewable sources. The first part focuses on the description of possible ways of accumulation, especially with focus on those methods, that are suitable for renewable energy sources. The next part deals with the design of the accumulation energy in the compressed air for the selected photovoltaic power plant. The necessity of designing a particular method of energy storage, is also its technical and economic analysis, which is the content of the last part of the thesis.
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Heating and hot water of sports building in renewable energy
Horský, Martin ; Topič, Jan (referee) ; Počinková, Marcela (advisor)
The aim of my work is the heating and hot water for multi-functional building. The first part is devoted to solar systems. And both in terms of use and usability as well as the requirements relating to individual elements of the solar system.Conclusion The first part is devoted to the practical design of solar equipment forhot water. In the second part is devoted to design heating polifunkčního house. There isperformed a complete calculation and design. And the calculation of heat losses to the design of boiler and its connection to the system.
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Nonconventional Utilisation of Wind Energy
Zajíc, Josef ; Turek, Vojtěch (referee) ; Jícha, Jaroslav (advisor)
The thesis considers utilization of the wind energy as source of energy for the production of hydrogen. In the first part, there is described the types of wind engine specialized especially on screw wind engines and their construction. After that follows the description of dilemmas usage of electric energy addicted in time and with it connected problems with accumulation elektricity by the help of various methods. The final part of the thesis is than addicted to statistic evaluation of wind conditions, description and suggestion of the equipment hydrogen management.
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Evaluation of possibilities for voltage control in a LV distribution network
Bolgár, Robert ; Drápela, Jiří (referee) ; Topolánek, David (advisor)
This paper deals with possible ways of voltage regulation. Theoretical part includes a search of published methods and the available voltage regulators. Acquired theoretical knowledge has been applied in the development of mathematical models of two selected controllers applied to the testing network. The result of this work is a summary of the outcomes of dynamic simulations with two selected regulators at various locations in testing network. Comparing the results of dynamic simulation for two selected states was chosen the most appropriate regulator and its optimal location in testing network.
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Energy storage in Building services systems
Bílek, Martin ; Počinková, Marcela (referee) ; Horák, Petr (advisor)
The subject of this thesis is energy storage systems in building services. In the first part the theoretical acquaintance with the nature of energy storage. In the second part has two variants preparation hot water in an apartment building. In the third part of the test solution storage tank of hot water. Development of computational algorithms, comparison of calculation used and the final summary.
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Energy independence and optimization of energy consumption with use renewable sources and smart wiring in house
Kaděra, Jan ; Hošek, Milan (referee) ; Bátora, Branislav (advisor)
This bachelor’s thesis focuses on optimization of electric energy consumption in household and its energetic independence. There is an overview of available energy sources for household and possibilities of its accumulation. Next, the function of system electrical wiring is described and compared with systems in today‘s market. In more detail, the thesis deals with description of FOXTROT control system developed by the company TECO a. s. and with possibilities of its application. The study describes savings optimization from both investment and operation perspective. A comparison of appliances of two energy classes in current prices is done, as well as a comparison of one-way and two-way pricing. Savings opportunities in lighting system, temperature control and appliance division according to their manageability are demonstrated. A calculator for photovoltaic system was created which provides return time of investment upon input parameters. A part of the thesis is a project documentation realized as a stage of a household object study, on which optimization opportunities are demonstrated.
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Accumulation of electricity from renewable sources
Dědek, Dušan ; Pavlů, Jaroslav (referee) ; Pospíšil, Jiří (advisor)
This work is specialized on problems accumulation electricity power from renewable sources and production electricity power from renewable sources for select object. First part describes renewable sources and their use in our conditions. Second part is specialized on accumulators specific for renewable sources. Third part compare to production electricity power from photovoltaic power station and windy power station and their combination for select object. Further accumulation these select sources. Final fourth part describe about their comparison from position how of technical so economic.
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