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Different way how to use solar radiation for the electric energy production
Obadal, Petr ; Křivík, Petr (referee) ; Vaněk, Jiří (advisor)
The thesis deals with the problem of potential use of solar energy through the conversion into electric energy. The thesis analyses in great detail several types of conversion. My special concern included photovoltaic conversion and thermal conversion of solar energy using steam turbines for energy production. In the subsequent parts, I focus on the problem of photovoltaic, photovoltaic systems, and solar thermal power plants, their installation and use.
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Design and construction laboratory exercise with Peltier cell
Mejzlík, Michal ; Šlezingr, Jan (referee) ; Macháček, Jan (advisor)
The introduction of this paper describes three thermoeletrical effects and their properties. It also deals with thermoelectrical cells, which are using Seebeck´s and Peltrier´s effects. The paper decribes principles how the Peltier´s cells work, their mathematical model, construction and practical use. The paper shows what kinds, shapes and output we can meet at the market and which kinds of parameters regulate their selection. The paper suggests the possibility to measure characteristic behaviour and quantity during laboratories tasks and their evaluations. At the conclusion is adduced the suggestion of laboratory task together with theoretically made pilot protocol.
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Thermoelectric cooler construction
Murgaš, Martin ; Šnajdárek, Ladislav (referee) ; Brázdil, Marian (advisor)
Bachelor thesis will concern description of Peltier modules and detailed description of thermoelectric phenomena’s on which is principle of these modules based on. Thermoelectric materials and their properties will be mentioned as well as different applications of Peltier modules. Heat losses of the cooler will be described. Onwards it describes mathematical model of Peltier modules and their coefficient of performance. Also mounting of modules, types of power supply and types of regulation are mentioned. Experimental part consists of calculation and designing of cooling assembly.
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Thermoelectric generator for flue-gas duct of boiler to convert low-temperature waste heat to electricity
Třináctý, Jiří ; Baláš, Marek (referee) ; Brázdil, Marian (advisor)
With the dwindling supply of fossil fuels is increasing interest in the most efficient use of primary energy sources. In many of today's devices leaving a considerable part of the fuel energy wasted in the form of waste heat. As a partial solution suitable to demonstrate the application of thermoelectric generator, or devices that convert heat energy directly into electrical energy. The trend in recent years shows the growing interest in this technology and the development of new thermoelectric materials. In addition to the use of waste heat thermoelectric generators can be found in a number of other applications, primarily as a source of electricity in conditions where required minimal maintenance, reliability, reliability and durability. Text is divided into three parts: a theoretical part, the part dealing with the design and implementation of the generator, and a final evaluation. The theoretical part includes a description of the basic thermoelectric phenomena, thermoelectric materials and their properties, a description of the main components of thermoelectric generators and applications in which the thermoelectric conversion uses. Part of the design and implementation deals with the design of thermoelectric generator for chimney flue and comparison of the proposal with real measured values.
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Low power thermoelectric generator
Lokaj, Jakub ; Pospíšil, Jiří (referee) ; Brázdil, Marian (advisor)
The bachelor thesis deals with the description the physical nature of the conversion of thermal energy into electrical energy and construction of thermoelectric generator. The work is divided into a theoretical part, practical part includes the design and experimental measurement constructed device and final assessment of thesis. The theoretical part describes the thermoelectric phenomena, properties of materials used for the manufacture of thermocouple, construction and electrical parameters of thermoelectric modules and applications of thermoelectric generators including a description of parts of which help to complete overall device. The practical part includes the design and construction of low power thermoelectric generator and experimental measurement connected device with the calculation comparing the predicted performance. In conclusion, besides to assessment thesis also outlines suggestions for further improvements the device.
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Temperature measurements with thermocouples
Hyrš, Jan ; Kandus, Bohumil (referee) ; Podaný, Kamil (advisor)
The work is aimed at measuring temperature with thermocouples. Brief is made introduction to its basic measurement and distribution. The principle function of the thermocouple is explained, and also describes its basic properties. The paper also described how they integrated into a circuit. Performed an overview of the use of thermocouples in practice, indicating illustrative examples. In conclusion, it is processed and evaluated executed experiment temperature of hotplate´s stove.
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Thermoelectric Generator
Štetina, Jakub ; Ančík, Zdeněk (referee) ; Vlach, Radek (advisor)
This thesis describes measuring of thermoelectric modules and building of the device, which would serve as an emergency electric energy source for specific purpose on the basis of ther-moelectric effects. We use thermoelectric generators (TEG).
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Possibilities of waste heat recovery from internal combustion engines
Křivák, Petr ; Pospíšil, Jiří (referee) ; Brázdil, Marian (advisor)
Increasing demands for vehicular traffic to reduce the environmental impact and consumption of fossil fuels, led an effort to increase the efficiency of the combustion process and the car as a whole. One way to achieve this is to use the waste heat of the combustion process, especially waste heat of exhaust gases. This heat can be converted into electrical energy. Consumption of electricity in modern cars is increasing. The presented work deals with the possibilities, how to using waste heat of exhaustgases from internal combustion engine. Focused on application of producing electricity. The paper analyzed the current state of car traffic, and then provides an overview of possible technological solutions using waste heat of exhaust gases. The main part is devoted to thermoelectric generators, their construction and possible design. In conclusion is made the energy balance with use thermoelectric generator.
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Application of MEMS technology in the field of thermoelectric generators
Janák, Luděk ; Brázdil, Marian (referee) ; Ančík, Zdeněk (advisor)
Práce je zaměřena na moderní oblast využití MEMS technologií v oblasti termoelektrických generátorů. Úvodem jsou diskutovány základní principy konstrukce a výroby MEMS TEG modulů. Praktická část práce sestává z ověření parametrů komerčního MEMS TEG modulu měřením a jeho simulace. Simulace je provedena pomocí MATLAB/Simulink i analytických metod. V závěru práce je na základě získaných poznatků provedeno zhodnocení využití metod „thermal energy harvesting” v oblasti letecké techniky.
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