Performance analysis of a thermoelectric solar collector integrated with a heat pump
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Publication Details
Author list: Lertsatitthanakorn C., Jamradloedluk J., Rungsiyopas M., Therdyothin A., Soponronnarit S.
Publisher: Springer
Publication year: 2013
Journal: Journal of Electronic Materials (0361-5235)
Volume number: 42
Issue number: 7
Start page: 2320
End page: 2325
Number of pages: 6
ISSN: 0361-5235
eISSN: 1543-186X
Languages: English-Great Britain (EN-GB)
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Abstract
A novel heat pump system is proposed. A thermoelectric solar collector was coupled to a solar-assisted heat pump (TESC-HP) to work as an evaporator. The cooling effect of the system's refrigerant allowed the cold side of the system's thermoelectric modules to work at lower temperature, improving the conversion efficiency. The TESC-HP system mainly consisted of transparent glass, an air gap, an absorber plate that acted as a direct expansion-type collector/evaporator, an R-134a piston-type hermetic compressor, a water-cooled plate-type condenser, thermoelectric modules and a water storage tank. Test results indicated that the TESC-HP has better coefficient of performance (COP) and conversion efficiency than the separate units. For the meteorological conditions in Mahasarakham, the COP of the TESC-HP system can reach 5.48 when the average temperature of 100 L of water is increased from 28 C to 40 C in 60 min with average ambient temperature of 32.5 C and average solar intensity of 815 W/m2, whereas the conversion efficiency of the TE power generator was around 2.03%. ฉ 2013 TMS.
Keywords
Coefficient of performance, conversion efficiency, solar-assisted heat pump
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