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Connection of Solar Power Plant and Water management
Zajíček, Michal ; Vrána, Michal (referee) ; Baxant, Petr (advisor)
In the bachelor's thesis Connection of Solar Power Plant and Water management the author designs the technical solution of pump control using solar energy. The main reason is to make an automatic system for pumping the rainwater through filters due to increasing its quality. Powering the device with a solar power plant will reduce the energy requirements and will also make it possible to store surplus energy from the solar power plant into the potential energy of the water. The result of the work is the compact device with an automatic control system designed to control small 12 V pumps, theoretical design of the photovoltaic power plant to power the device and theoretical analysis of solar energy and water management issues.
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Photoimpedace spectroscopy characterization of optical and electrical properties of the photovoltaic cells
Mocharová, Zuzana ; Chladil, Ladislav (referee) ; Novák, Vítězslav (advisor)
Diploma thesis mainly describes the theoretical knowledge of the topic photoimpedance spectroscopy characterization of optical and electrical properties of the photovoltaic cells, which contains development and princip of cells working, material properties of photovoltaic cells, explanation of electromagnetic waves, spectrophotometry and impedance spectroscopy, followed by a discription of the measuring device and used measuring methods. The experimental section for each measurement method describes the steps of setting the program, then the tables with measured values are involeved in some parts and a part of each method are summary graphs of measured values with subsequent evaluation.
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Analysis of single phase induction motor
Vícha, Adam ; Mišinger, Lukáš (referee) ; Mach, Martin (advisor)
The bachelor‘s thesis deals with construction, operation principle, connection method, winding and distribution of losses of induction motors focusing on single-phase induction motors. Two single-phase induction motors with an auxiliary phase and permanently connected capacitator are measured in the laboratory. Each motor is made of different electrotechnical sheets. Motors are subjected to analytical calculation and analyzed by finite element method. Influence of quality of magnetic circuit is researched. Results of analysis are compared to measured readings in the conclusion. Both motors are compared in terms of efficiency.
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Investment Proposal Evaluation in Internet Shop, s. r. o.
Polášková, Lenka ; Flachbart,, Alojz (referee) ; Zinecker, Marek (advisor)
The main goal of bachelor’s thesis is to evaluate the economic effectiveness of investment options in company Internet shop, ltd based on selected methods including formulation of recommendation for implementation. First part contains definitions of concepts and theoretical basis of methods for evaluating effectiveness. In the second part the methods are applied and in the third part is suggested if the company should be realize or not.
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Air conditioning in the library
Pospíšilová, Lucie ; Uher, Pavel (referee) ; Blasinski, Petr (advisor)
Dissertation offers a plan for air – conditioning equipment of library building in Brno and it involves air filter experimental measurement. The proposal is divided into three parts. The first part explains air filter theory with detailed description of atmospheric air filters for separation of particles for general ventilation - filter parameter determination. Theory part ends specifically with pocket air filters and their construction. The second part focuses on experimental pocket air filter measurement execution, which calculates with variable filter cartridges and pocket count. Measurement also evaluates pressure drop and their efficiency. The last part of the dissertation looks at air – conditioning equipment design for specified building, concretely library building. The project solves fresh air traffic into interior of selected library rooms and it counts with thermal heat gain in summer season, heat loss in winter season and air humidity modification.
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Axial magnetic flux generator for small hydro power plant
Tauš, Michal ; Bulín, Tomáš (referee) ; Ondrůšek, Čestmír (advisor)
This bachelor thesis deals with a design of axial permanent magnet generator. The first part is devoted to the overview of machines driven by permanent magnets and the comparison of axial machines. In the next part the thesis deals with the design of the machine with axial magnetic flux based on the specified parameters. In the last part, the real properties are verified by ANSYS Maxwell simulations.
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