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Fuel elements thermal field analysis
Vacek, Jiří ; Martinec, Jiří (referee) ; Šen, Hugo (advisor)
The purpose of this thesis is to describe calculation procedures of fuel element thermal field analysis. The next is VVER-440 fuel element solution for selected operating conditions. These solutions are also made numerically with ANSYS. The importance of each effect on solution is assessed in thesis. The possibilities of some simplifications are also assessed.
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Nuclear power before and after the disaster of Fukushima Daiichi
Hanuš, Jan ; Moskalík, Jiří (referee) ; Martinec, Jiří (advisor)
This bachelor’s thesis is written about accident in Fukushima Daiichi power plant. There are described causes and consequences of this accident and also status of nuclear energy before and after this accident. The disaster at Fukushima Daiichi is compared with the disaster at Cernobyl nuclear power plant in this work too. At the end of this thesis is written technical and economical study for phase out of nuclear energy in the Czech Republic.
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Hydrogen: energy storage for the future
Studýnka, Radim ; Škvařil, Jan (referee) ; Martinec, Jiří (advisor)
The aim of this work was to characterize the hydrogen as energy reservoir, to characterize the ways of its storage, to describe its position in possible future scheme of energy sources and to name energy sources, which can be used to produce it. Another objective was the characterization of the current state of the used energy sources. In the opening part is described the current state of energy sources, the characterisation of the hydrogen follows together with description of its possible future status. In the next parts are described production, storage and use of hydrogen. In the near future can be expected, that the hydrogen will be produced from fossil fuels at the beginning, especially due to their availability, and they could be replaced after some time by alternative sources of energy. One of these sources could be nuclear power. Storage of hydrogen in the liquid and gaseous state is currently the most widely method especially due to relatively well known technology. Metal hydrides and porous materials could become common storage medium of the hydrogen in the case of mastering their technology. The hydrogen can be used in stationary applications for cogeneration units, which produce heat and electricity. It can be also used in mobile applications for drive vehicles, which use hydrogen engines or hydrogen fuel cells.
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Character of nuclear energy in European Union - history and present
Koryčanský, Roman ; Šen, Hugo (referee) ; Martinec, Jiří (advisor)
The thesis deals with the development and current status of nuclear energy in Europe. The first part focuses on the legislative background in the EU – The Euratom treaty. Next, the thesis describes the history of European companies that are engaged in nuclear energy, in particular the French company AREVA. The largest part of the thesis deals with the relationship of nuclear energy and public opinion, and focuses on the status of nuclear energy in selected countries and the attitudes of environmental organizations. This section also includes a description of the history of the most serious accidents. The conclusion focuses on the economic aspects of nuclear energy and its future.
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Fundamentals of cogeneration and its application in Brno
Kubiš, Zdeněk ; Škvařil, Jan (referee) ; Martinec, Jiří (advisor)
The bachelor’s thesis deals with the cogeneration – Combined Heat and Power. It describes its main principles and advantages. It presents the most important types of cogeneration technologies with an emphasis on high-power units and summarizes the main areas where the cogeneration can be applied. Further, the State Energy Policy of the Czech Republic in the heat production is introduced. In the last part, the thesis is concerned with the history and the current state of heat production in Brno and gives an overview of the heating stations in the city.
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Intermediate heat exchanger natrium - natrium
Kupčík, Petr ; Martinec, Jiří (referee) ; Šen, Hugo (advisor)
This paper deals with intermediate heat exchangers in nuclear power plants. First section of this paper is devoted to analysis and divide of construction designs of intermediate heat exchangers in commercial and experimental power plants. There is a description of thermal, hydraulic and strength calculations during projection of IHX in the second chapter. There has been made a blueprint of loop type IHX in the final chapter of this paper.
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Unsuccessful conceptions of combustion engines
Martinec, Jiří ; Blaťák, Ondřej (referee) ; Zháňal, Lubor (advisor)
The main aim of the bachelor thesis was to study unsuccessful conceptions of combustion engines. It determines a brief summary of abortive directions in development of combustion engines, classifying them by structial design, as well specifying reasons of failure. It clarifies working principles and summarize possible pros and cons of each conception.
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Turbochargers for internal combustion engines.
Holík, Petr ; Martinec, Jiří (referee) ; Škorpík, Jiří (advisor)
This bachelor thesis deals with theme of turbochargers for internal combustion engines and shows basic systematic view of this theme. The work is divided into three main chapters. The first chapter deals with historical development and usage of turbochargers. The second chapter attends to working principle and energy transformation in the turbochargers. In the third chapter there are mentioned main types of turbochargers and their parameters and worldwide producers.
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Výběr poskytovatele aplikačních služeb
Martinec, Jiří ; Voříšek, Jiří (advisor) ; Vít, Miroslav (referee)
Cílem práce je vytvoření detailní analýzy návrhu webové aplikace ?Průvodce výběrem eshopu?. Tato aplikace je určena převážně pro vedoucí pracovníky malých a středních podniků, kteří se rozhodli pro zřízení internetového obchodu pro prodej svých produktů a služeb. Hlavní funkcí průvodce je pomoc uživateli při výběru optimálního systému pro provoz internetového obchodu formou ASP. Průvodce provede uživatele krok za krokem parametry, které nabízejí dostupné systémy.
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