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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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Thermal Dilatation Measurement of Elastomeric Plastic Sheets
Mahel, Jindřich ; Kučera, Jaroslav (referee) ; Petrůj, Jaroslav (advisor)
The aim of the thesis was to design and build an apparatus for measuring linear thermal expansion of plastic waterproofing sheets. In the theoretical part of the thesis the methods used for measuring linear thermal expansion of solids were compared and the principle of thermoelectric cooling was described . For the measuring the Abbe comparator has been chosen , which has been equipped with a tempered chamber with a cascade of thermoelectric Peltier elements for cooling and heating of specimen. The experimental part of the thesis deals with the construction of the device and the actual measuring in the specified temperature range.
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Electric cars heating systems
Kolomazník, Milan ; Fišer, Jan (referee) ; Hejčík, Jiří (advisor)
The object of this bachelor thesis is a research concerned the electric vehicle interior heating ways. The basic terms connected with the electromobilism general problems are described at the beginning. The following part outlines the current problems that impede the wide expansion of these vehicles. The thesis sums up the direct methods of the heating using electricity and the alternative way, which is a self-sufficient heating using an internal combustion engine. It also assesses the applicability of heat loss emerging in the electric components, such as an electric motor, a frequency converter or an accumulator. Based on these findings, the various constructional drafts were created including a list of their strengths and weaknesses. The conclusion draws a comparison between each of these constructional solutions.
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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.
|
|
|
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.
|
|
| |
|
|
Electric cars heating systems
Kolomazník, Milan ; Fišer, Jan (referee) ; Hejčík, Jiří (advisor)
The object of this bachelor thesis is a research concerned the electric vehicle interior heating ways. The basic terms connected with the electromobilism general problems are described at the beginning. The following part outlines the current problems that impede the wide expansion of these vehicles. The thesis sums up the direct methods of the heating using electricity and the alternative way, which is a self-sufficient heating using an internal combustion engine. It also assesses the applicability of heat loss emerging in the electric components, such as an electric motor, a frequency converter or an accumulator. Based on these findings, the various constructional drafts were created including a list of their strengths and weaknesses. The conclusion draws a comparison between each of these constructional solutions.
|
|
|
Thermal Dilatation Measurement of Elastomeric Plastic Sheets
Mahel, Jindřich ; Kučera, Jaroslav (referee) ; Petrůj, Jaroslav (advisor)
The aim of the thesis was to design and build an apparatus for measuring linear thermal expansion of plastic waterproofing sheets. In the theoretical part of the thesis the methods used for measuring linear thermal expansion of solids were compared and the principle of thermoelectric cooling was described . For the measuring the Abbe comparator has been chosen , which has been equipped with a tempered chamber with a cascade of thermoelectric Peltier elements for cooling and heating of specimen. The experimental part of the thesis deals with the construction of the device and the actual measuring in the specified temperature range.
|
|
|
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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