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Alternative Energy Resources for Family House
Němec, David ; Brázdil, Marian (referee) ; Špiláček, Michal (advisor)
This bachelor thesis is focused at an issue of thermal energy supply for family houses from renewable resources. The aim of this thesis is to provide a summary of possible thermal energy supplies from renewable resources (solar collectors, heat pumps). After that follows a draft and economic evaluation of these systems for individual sources of thermal energy. In introductory section a solar energy is described. It is a significant part of renewable energy. This part is followed by review with description, composition and principle of individual types of solar collectors and heat pumps. Next part is focused on draft of these systems. Conclusion is then dedicated to energy evaluation of individual designed systems.
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Comparison of calculation of steam boiler efficiency
Přívozník, Martin ; Brázdil, Marian (referee) ; Baláš, Marek (advisor)
This bachelor's thesis contains a comparative calculation of the indirect efficiency of the steam boiler. The calculation will be performed by two existing standards in the Czech Republic. At the beginning is the description of power plant and steam boiler. Following part includes a theoretical introduction to the issue of efficiency. The idea of this work is to identify any differences between the two standards and comparison results of calculation.
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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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Technology sputtering of flue-gas
Hladík, Petr ; Brázdil, Marian (referee) ; Hrnčířová, Michaela (advisor)
The object of this bachelor’s thesis is to create a research in field of flue gas scrubbing technology. In the first part, there are briefly outlined issues of size and shape of particles present in flue gas after combustion. Next part focuses on basic general characteristics of separators. Main part treats of individual types of separators. Following chapters deal with emission limits in Czech Republic and future development of the field. Thesis is concluded by sample calculation of the cyclone separator.
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– Construction of large power plants for use of renewable energy sources in Czech Republic
Krátký, Lukáš ; Brázdil, Marian (referee) ; Špiláček, Michal (advisor)
The main goal of this thesis is researching possibilities of implementation of large renewable power sources in the Czech Republic. In concentrates especially on photovoltaic power plants, wind power plants, water power plants, and heating plants and power plants using biomass and assessment of the impact of renewable power sources on the stability of transmission systems. Among others it deals with long-term conception of power industry in the Czech Republic and the European Union. Nevertheless, the main part of the thesis focuses on an actual issue of exploatation of renewable sources under specific conditions of the Czech Republic. The problematic of the influence of renewable power sources on the stability of transmission grids and possibilities of strengthening that stability is reflected too.
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Oil brakedown theory
Daubner, Tomáš ; Brázdil, Marian (referee) ; Pospíšil, Jiří (advisor)
Bachelor thesis „Oil brakedown theory“ deals with peak oil theory and its potentially harmful consequences for contemporary society, which is addicted to continuous supply of fosil fuels. Peak oil is characterized by Hubbert curve, according to which the oil extraction in time follows bell-shaped pattern. The International Energy Agency in 2010 back recognized that peak oil in conventional oil occurred in 2006. The author presents the views of leading analysts of peak oil, which has no doubt that peak oil in liquid fuels is here by 2017.
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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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Micro cooling with Peltier cell
Brázdil, Marian ; Bogdálek, Jan (referee) ; Pospíšil, Jiří (advisor)
This work concerns detail description of thermoelectric cooling modules, principles and practical utilization of thermoelectric cooling modules. Experimental part of this work studies computer cooling. Distribution of temperature at the cold and hot side of the thermoelectric cooling module as a function of load of a processor was measured. The obtained temperatures were compared with the common cooling methods.
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