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Draft methodology for processing and evaluation of long-term measurements on PV Panel
Žák, Tomáš ; Šlezingr, Jan (referee) ; Macháček, Jan (advisor)
This bachelor thesis aims to analyse the physical theory behind the photovoltaic cells and propose extension measurements for a modernised on-line laboratory. The first part of this thesis describes the theory of the photovoltaic conversion of solar energy into electricity. The p-n junction is described in detail because of its importance for a thorough understanding of the subject. The temperature dependence of a photovoltaic panel, i.e. the negative impact of rising temperature on the output power, is also described here. The contributions of this thesis include a summary of the current situation and the system of state subsidies for the current year as well as a proposal for an extension of measurements in an on-line laboratory, which is to be modernised, at the Department of Power Engineering. Therefore, the thesis includes some specific proposals of graphic dependence, which have a significant information value, and a possible further extension of the laboratory with new measuring and measured elements, which would be helpful for deeper understanding of the subject. In particular, it would be useful for understanding which factors influence the output power of a photovoltaic panel, both significantly and less significantly, which is undoubtedly the most important point.
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Energy supply of mountain cottage
Flöhsler, Tomáš ; Martinec, Jiří (referee) ; Pospíšil, Jiří (advisor)
The aim of this Graduation Thesis is to devise a system of energy supply intended to provide supply of electric and heat energy to a vacation property. The main feature of this energy supply project stands for a shift from mains power supply to alternative energy supply using renewable resources. The reason for this change is the fustiness of power lines and their negative effect on the surrounding landscape. Due to the fact that authorities did not permit renovation of these power lines, the only way to preserve the functionality of the vacation property is to secure its power supply by employing renewable resources. The vacation property (a mountain cottage) is located in Hrubý Jeseník Mountains, approximately 15 kilometers from the town of Šumperk. The thesis also contains a description of the way outlying settlements are currently supplied with energy, including the possibility of accumulation and a brief description of each electrical appliance’s power consumption. In the design itself, I calculated the necessary collector surface and analyzed the most effective collector placement. As for the wind energy system, I had to found the best spot to place the turbine. Last but not least, the thesis contains the technical-economical comparison of the proposed alternatives.
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Using renewable energy sources
Vaňko, Adam ; Bátora, Branislav (referee) ; Matoušek, Antonín (advisor)
Thesis deals with the issue of renewable energy sources. It contains the description of their usage at present as well as the possibilities of their installation. When dealing with the individual types of sources the thesis states their advantages, disadvantages and the facts concerning their further development. Technical development brings us new and perspective types of renewable energy sources, the description of some of them can be found in the thesis as well. The second part of the thesis is focused on the solution of electric power supply for a holiday cottage. Authonomy photovoltaic system is suitable for its application. The system is designed to have an ability to supply electrical units in the cottage during the whole year. To be able to consider profitability of the photovoltaic system installation the thesis contains the project of low voltage energy branch connection. This branch line of 1200 m in length is properly designed and the thesis states its capital costs as well. Financial comparison of the photovoltaic system costs on the one hand and the costs of low voltage branch line on the other hand in the next 30 years of usage proves the profitability of the photovoltaic system.
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Environmental-friendly heating
Čekanová, Adéla ; Tabasová, Andrea (referee) ; Němec, Zdeněk (advisor)
The subject of thesis is environmental-friendly heating. Theoretical part includes overview of possible ways using alternative energy sources, especially solar energy and energy environment - heat pumps. Partical part is devoted to solution of environmental-friendly heating and heating warm water for family house using solar system. The proposal is documented with economic evaluation and calculation of economic return.
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Utilization renewable energy sources inside of EPS Czech Republik
Zmeškal, Pavel ; Procházka, Zdeněk (referee) ; Matoušek, Antonín (advisor)
The purpose of this work was the analysis of current state and further development of renewable energy in the Czech Republic. And next their effects on the electricity system of the Czech Republic. On the basis of established facts has been developed actual state of renewable energy sources. The current situation is only orientation and is still changing at this time. Another objective was to evaluate the various renewable energy sources in terms of their impact on the electricity system and recoverability in the Czech Republic. In more detail were read up the conditions for the wind power plants operation and their connection to the electricity system of Czech Republic. In fine were discuss the impact of renewable energy sources on electricity system and prerequisite for their further development in the Czech Republic.
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Off-grid street lamp design.
Hampl, Petr ; Karásek, David (referee) ; Křenek, Ladislav (advisor)
Oblast problémů, ze kterých konkrétní téma projektu vychází, zahrnuje současnou globální transformaci zdrojů energie a jejich dodávek se zvláštní pozorností na obnovitelné zdroje energie. Důraz je kladen zejména na hodnoty jež přináší produkt určený k užívání ve veřejných prostorách. Autorovým zadáním bylo navrhnout osvětlovací jednotku nezávislou na vnějším zdroji napájení. Cílem návrhu je přehodnotit způsob, jakým jsou dnes technologie využívání sluneční a větrné energie běžně používány, a navrhnout řešení přinášející nové vlastnosti a užitné hodnoty pro přímého uživatele i celou společnost. Autor přináší návrh produktu jenž je reakcí na současné globální hrozby a příležitosti. Výsledkem projektu je návrh pouliční lampy kombinující fotovoltaický článek a větrnou turbínu s cílem získat elektrickou energii jež je dočasně akumulována a následně dodávána svítidlu. V návrhu je kladen důraz na požadavky ergonomie a estetickou hodnotu produktu. Navržené řešení znamená finanční přínos z hlediska šetření neobnovitelnými zdroji energie a případnými finančními výhodami pro investora plynoucími z provozování veřejného osvětlení. Pouliční lampa nezávislá na vnějším zdroji napájení má navíc menší negativní dopad na životní prostředí a představuje technologie využívání větrné a solární energie v přívětivé a nerušivé podobě.
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Design and realization of tutorial based on SEW Eurodrive gearmotors
Kantor, Martin ; Prášil, Ludvík (referee) ; Vrbka, Martin (advisor)
The thesis deals with a construction of solar tracker designed from the MayTec Profile System using SEW Eurodrive’s electric actuation and accessories. The work describes the design of a laboratory assignment which uses these elements. In the preface information is provided about the construction of solar trackers on which the thesis is based. The next parts of the text are dedicated to each step of the construction design and its variants. A description of how to activate the drive and the design of the connection scheme are also included as well as the technological and construction evaluation. The conclusion contains an economical evaluation of the whole construction.
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Design of board for solar fotovoltaic cells
Kulhánek, Martin ; Urbanec, Libor (referee) ; Venclík, Jiří (advisor)
The purpose of this dissertation is to discuss the engineering design of the supporting structure for solar photovoltaic panels with a total area of 200 metres square. The supporting structure is intended for implementation as part of a solar power station. The preamble of the dissertation examines photovoltaic power stations, their types, advantages and disadvantages. The focus of the second part is directed toward the project of constructing the supporting structure and it also deals with the tasks of attaching the photovoltaic panels and putting the panel’s supporting structure in place. This section will also propose methods of continuously monitoring both the panel and its support-structure once they have been constructed and brought into operation. The purpose of part three is to perform the calculations concerning the entire structure’s required load-bearing properties through the use of the Final Element Method in the program “ANSYS 11.0”. The conclusion of this dissertation is devoted to the evaluation and economic analysis of the construction.
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Design of heating system for low-energy family house
Kytýrová, Zdeňka ; Hejčík, Jiří (referee) ; Košner, Jan (advisor)
This diploma thesis deals with the design of a heating system for a "low-energy" house. It is conceived as a low temperature system using a combination of radiators and underfloor heating. The design is supplemented with a calculation of heat loss, a proposal of needed components, a scheme of the system and means of regulation. The second part solves the heat source selection. A solar system with vacuum tubes is used as the primary source. The second one is an electrical water heater located in the accumulation reservoir for the hot domestic water. Necessary calculations for the design of the solar system, together with a scheme and means of regulation, are enclosed in this section.
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