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Systems design and possibilities of utilization of photovoltaic power station in the Czech Republic
Švec, Radovan ; Procházka, Zdeněk (referee) ; Mastný, Petr (advisor)
This bachelor thesis deals with project and possibilities of use of photovoltaic power stations at the area of the Czech Republic. The first part is dedicated to state and aproach to solar energy in our state and abroad. In the second part are described parts of mecanism used for conversion of solar radiation to electric energy. The third part deals with physical principal of photovoltaic effect. Other parts are dedicated to general project of photovoltaic power station and in the final part economic evaluation of project and joining to the transmission system are mentioned.
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Effect of a nuclear power plant in terms of radiatin burden
Vániš, Jiří ; Procházka, Zdeněk (referee) ; Belatka, Martin (advisor)
This text deals with ionizing radiation affecting nuclear power plant personnel and surrounding population. Irradiation limits of radiological industry personnel are also mentioned along with ways of protecting them and checks on absorbed ionizing radiation dose. In conclusion, a nuclear power plant, as a source of ionizing radiation, and its effects on contamination of water sources and gas vents are evaluated. The next part be engaged problematical of storage nuclear waste from the time, when is removed the nuclear waste from nuclear reactor, trough permanent storage.
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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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Usage hydropower potential on river Tichá Orlice
Rybka, Michal ; Procházka, Zdeněk (referee) ; Matoušek, Antonín (advisor)
This bachelor thesis solves proposal of small hydro power station. The first part deals with energy resources, especially water energy and energy use in the Czech Republic. River Ticha Orlice is characterized in other part, comparing of five weirs is necessary part. Next chapter is proposal of small hydro power station particular its electrical parts, including the connection to the distribution system. Finally, investment evaluation of proposed small hydro power station is mentioned.
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Optimization of heavy steel castings manufacture
Procházka, Zdeněk ; Čech, Jan (referee) ; Šenberger, Jaroslav (advisor)
The Master’s thesis was conducted under the project FR-TI1/070 “Optimalization of heavy steel casting manufacture” in cooperation with ŽĎAS a. s. foundry. It evaluates rate of conchoidal fracture in samples extracted from experimental castings. The testing bar for the static tensile test were extracted from thermal axis of casting. The research part describes ways of deoxidating the liquid metal and usage of separate deoxidating chemical parts, followed by summary of research knowledge on conchoidal fractures. In the practical part, the process of sample evaluation is described. The conchoidal fracture, the surface of which was evaluated on the fracture surfaces, influences mechanical qualities of cast steel. Simultaneously, impacts of metallurgical factors on rate of conchoidal fracture were examined
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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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Optimization of heavy steel castings manufacture
Procházka, Zdeněk ; Čech, Jan (referee) ; Šenberger, Jaroslav (advisor)
The Master’s thesis was conducted under the project FR-TI1/070 “Optimalization of heavy steel casting manufacture” in cooperation with ŽĎAS a. s. foundry. It evaluates rate of conchoidal fracture in samples extracted from experimental castings. The testing bar for the static tensile test were extracted from thermal axis of casting. The research part describes ways of deoxidating the liquid metal and usage of separate deoxidating chemical parts, followed by summary of research knowledge on conchoidal fractures. In the practical part, the process of sample evaluation is described. The conchoidal fracture, the surface of which was evaluated on the fracture surfaces, influences mechanical qualities of cast steel. Simultaneously, impacts of metallurgical factors on rate of conchoidal fracture were examined
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Solution technology of part "solid belt pulley of hoist-elevator".
Procházka, Zdeněk ; Polzer, Aleš (referee) ; Kalivoda, Milan (advisor)
This diploma work deals with a production technology of a tractive bearer rope wheel as a part of a hoist-elevator. A design and technological analysis of the components is studied, including a functional analysis of the grooves, a selection of the material of semi-manufactured blank, a selection of the cutting materials and production machines also. New CNC programs for production of the part have been worked-out. The work includes some suggestions for testing of the part function.
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Usage hydropower potential on river Tichá Orlice
Rybka, Michal ; Procházka, Zdeněk (referee) ; Matoušek, Antonín (advisor)
This bachelor thesis solves proposal of small hydro power station. The first part deals with energy resources, especially water energy and energy use in the Czech Republic. River Ticha Orlice is characterized in other part, comparing of five weirs is necessary part. Next chapter is proposal of small hydro power station particular its electrical parts, including the connection to the distribution system. Finally, investment evaluation of proposed small hydro power station is mentioned.
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