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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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Thermoelectric Power Generation System
Brázdil, Marian ; Nerud, Pavel (referee) ; Pospíšil, Jiří (advisor)
In the last decade there is a rising interest in thermoelectric applications. Thermoelectric generators enabling the direct conversion of the heat into the electricity become attractive. This fact is caused by the demands of environmental operation and saving primary resources. Scientists intensively investigate and develop new materials and structures suitable for these applications. The efficiency of the thermoelectric conversion progressively increases. Unfortunately we have no available materials with sufficient thermoelectric properties which could provide cost-competitive price. Thermoelectric generators seem to be useable devices. For example, in case of the unused waste heat using of the thermoelectric generator can increase the overall effectiveness of the unit despite the low efficiency of the generator. This master thesis deals with the issue of the Peltier modules representing the main part of the thermoelectric generators. The physical principles and structures of the thermoelectric modules and the possibility of thermoelectric power production are described here. In the practical part of this thesis the design of the low power generator utilizing waste heat from biomass boiler Verner A 251.1 is proposed.
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Thermocouple simulator
Nermut, Martin ; Michalec, Jaroslav (referee) ; Klusáček, Stanislav (advisor)
NERMUT, M. Thermocouple simulator. Brno: Brno University of Technology, Faculty of Eletrical Engineering and Communication. 2009. 62 s. Supervisor Ing. Stanislav Klusáček. Consultant Ing. Miroslav Krupa, - IDC Brno, Honeywell s.r.o. The aim of the thesis is design and realization of handheld thermocouple simulator, suitable both for laboratory and plant use. Manual or remote control via RS232 are possible. Special attention is focused on universality, easy and safety use (galvanic isolation), properly cold junction compensation, easy calibration of non-linearity. Sponsor: IDC Honeywell, Brno, Czech Republic Basic literature: - OMEGA Temperature Handbook) - Datasheets of OMEGA instruments (www.omega.com) - Datasheets of other vendor instruments (www) - Isotech Traceable Book – Temperature Calibrabration (www.isotech.co.uk) - BELZA J., Buld-in Li-ion accu charger (www.belza.cz) Appendixs: - User manual - Schematic - Calibration data - CD (source code)
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Applications of thermoelectric generators
Kopřiva, Lukáš ; Pospíšil, Jiří (referee) ; Brázdil, Marian (advisor)
This bachalor thesis is about thermoelectric generators and their utilization. Basic physical principles of thermoelectric conversion and design of thermoelectric devices are described at the beginning. Next part of thesis is related to practical applications of themoelectric generators. Applications that using fossil fuels, waste heat and renewable energy are mentioned. Conclusions and evaluations of their usefulness are made at the end.
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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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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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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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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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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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