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Design of wind power plant
Starý, Ondřej ; Dlugoš, Jozef (referee) ; Řehák, Kamil (advisor)
Renewable energy sources are currently a much-discussed issue. One of the possibilities of their use is the production of electricity using wind power plants. This work therefore describes in detail construction of wind turbines. At the same time, there is a brief evaluation of wind power plants, from an energy and economic point of view. Part of the work is also the calculation of the optimization of the gearbox weight and a description of the design of the wind turbine coupling.
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The Autonomous House or Living Grid-off
Chlebný, Radek ; Šlezingr, Jan (referee) ; Macháček, Jan (advisor)
This thesis deals with energy self-sufficiency focusing on the independence of the electric grid. Basic line emanating project form a concrete proposal for autonomous energy supply system. Emphasis is placed primarily on photovoltaic systems, electric energy accumulation and selection of individual components of such a system. Another important part of the thesis is also an economic evaluation of design variations. The thesis also deals with a market research, and thereof derived benefit assessment of each technology. The accompanying chapters are then devoted to the history of autonomous life style or classification of buildings according to their energy performance.
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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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Possibilities of Solar Chimney Power Plants
Moravčík, Martin ; Macháček, Jan (referee) ; Procházka, Zdeněk (advisor)
This thesis contains teoretical summary of present situation of problems involved in solar chimneys development. In the first chapter there are mathematical methods for describing the functions of solar chimneys in general. It establishes figures for power output, efficiency, speed of flow inside the chimney and figures for desinging solar chimney. In the next chaper there is a division of solar chimneys and it mainly focuses on describing the solar updraft towers and solar floating chimneys. And marginally it focuses on solar downdraft towers. Next there are possibilities how to use principle of solar chimney for air conditioning and ventilation. In the next chapter it describes the use of solar chimneys, with cogeneration, hydrogen production, in cooling towers and chimneys, and there is also fully described the project in Manzanares. In the fifth chapter it describes the economy of the two comparative projects of solar chimneys, which are at the end economically analyzed and assessed. The last chapter is a summary of the objectives of this thesis, and the subsequent approach is described too and at last there is also evaluation of solar chimneys and the conclusion of this thesis.
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Small wind turbines in urban enviroment
Ondráček, David ; Škorpík, Jiří (referee) ; Linda, Jakub (advisor)
This thesis is focused on the problematics of smaller wind turbines usage in the urban environment. The beginning of the thesis deals with the basic theory of wind, its origin, and specifics of air flow in the urban environment. Furthermore, a search of currently available wind turbines suitable for the urban built environment is performed, and regarding the specific air flow in this environment, possibilities are proposed to increase the efficiency of these turbines. The next part of the thesis analyses the experience from real world applications. At the end of the thesis, the energy gains generated by the selected turbine and photovoltaic panels in given locality are calculated, ending with a comparison of the suitability of these two sources of renewable energy.
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Aerodynamic design of wind turbine
Chromec, Tomáš ; Fiedler, Jan (referee) ; Škorpík, Jiří (advisor)
This master‘s thesis focuses on wind turbines. The first part describes the basic attributes of wind energy and wind turbines and is accompanied by a many images. The next section is a statistical processing of measured meteorological data from measuring stations of the Czech Hydrometeorological Institute. These data are then used for calculations of the blades of wind turbines. The calculations are carried by two different methods. The first method is called the blade element momentum theory, the second method is the theory of blade cascade. Using these methods are obtained by two different blades. The last section compares the two blades in terms of geometric and performance.
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Design of wind turbine blade
Plhal, Matěj ; Linda, Jakub (referee) ; Škorpík, Jiří (advisor)
Master thesis describes the design of a wind turbine blade. In the theoretical part it focuses on a general research of wind energy and the design of wind power plant as a whole. In the practical part, the thesis focuses on the aerodynamic design of the blade, from determining the wind speed at the location to selecting the blade profile and its resulting characteristics. The following section provides a review of blade constructions, including the materials used and the blade's own structure. Furthermore, possible methods of blade manufacturing are described with a simplified manufacturing process of the proposed blade. The design also considers the transport of the blade from the manufacturing site to the installation site and therefore possible solutions are given, both in design and transport.
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Home micro-wind power plant
Šmol, Vojtěch ; Máca, Josef (referee) ; Vyroubal, Petr (advisor)
The master´s thesis deals with the construction of micro wind power plants in domestic conditions. Firstly, theory about wind is discussed. In next part, the types of wind turbines and their parameters are listed. Furthermore, the design and production of a domestic micro wind turbine, the design of blades, hubs, brakes and speed sensors are addressed. Furthermore, the design and production of a synchronous generator with permanent magnets produced using 3D printing is carried out. Results from generator testing are shown. In the next part of the thesis, the issue of MPPT controllers is solved, the principle of operation, hardware and software and the results of testing are clarified. The last part deals with the testing of wind power plants in simulated conditions and in real operation.
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Small wind turbines in urban enviroment
Ondráček, David ; Škorpík, Jiří (referee) ; Linda, Jakub (advisor)
This thesis is focused on the problematics of smaller wind turbines usage in the urban environment. The beginning of the thesis deals with the basic theory of wind, its origin, and specifics of air flow in the urban environment. Furthermore, a search of currently available wind turbines suitable for the urban built environment is performed, and regarding the specific air flow in this environment, possibilities are proposed to increase the efficiency of these turbines. The next part of the thesis analyses the experience from real world applications. At the end of the thesis, the energy gains generated by the selected turbine and photovoltaic panels in given locality are calculated, ending with a comparison of the suitability of these two sources of renewable energy.
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Design of wind power plant
Starý, Ondřej ; Dlugoš, Jozef (referee) ; Řehák, Kamil (advisor)
Renewable energy sources are currently a much-discussed issue. One of the possibilities of their use is the production of electricity using wind power plants. This work therefore describes in detail construction of wind turbines. At the same time, there is a brief evaluation of wind power plants, from an energy and economic point of view. Part of the work is also the calculation of the optimization of the gearbox weight and a description of the design of the wind turbine coupling.
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