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Solar Radiation Measurements
Chvátal, Michal ; Pikula, Stanislav (referee) ; Beneš, Petr (advisor)
The Bachelor‘s thesis discusses design and verification of an inexpensive method for indicative measurement of direct and diffused solar radiation. The reason for the measurement of solar radiation is the estimate the heat gain of buildings. In this paper the difference between thermoelectric generator and cooler is described. There is also described how to choose a suitable module for solar radiation measurement. The design of the measuring circuit and the construction of sensor are also described. Eventually the measured values are compared with the values from the commercial pyranometer SG420.
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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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Solar Radiation Measurements
Chvátal, Michal ; Pikula, Stanislav (referee) ; Beneš, Petr (advisor)
The Bachelor‘s thesis discusses design and verification of an inexpensive method for indicative measurement of direct and diffused solar radiation. The reason for the measurement of solar radiation is the estimate the heat gain of buildings. In this paper the difference between thermoelectric generator and cooler is described. There is also described how to choose a suitable module for solar radiation measurement. The design of the measuring circuit and the construction of sensor are also described. Eventually the measured values are compared with the values from the commercial pyranometer SG420.
|
|
|
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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