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Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)

Editor
Y. Tao
Y. Tao
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C. Ma
C. Ma
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ISBN:
9780791802908
No. of Pages:
1200
Publisher:
ASME Press
Publication date:
2009

In order to extend the annual operation time of solar energy water heating system, a novel solar energy water heater in conjunction with air source heat pump is developed. Based on the component design and system matching, a flat-plate solar energy water heating system with 320 m2 collector areas in conjunction with 4 air source heat pump units (SEWHS-AHP) was designed and built for practical applications in Kunming, Yunnan Province of China. The SEWHS-AHP has been put into use successfully. Field tests on the SEWHS-AHP were performed under all kinds of typical climate conditions. For the SEWHS-AHP, the solar collectors can provide about 81% heat loads during the entire year. The COP (coefficient of performance) of the air source heat pump units varies within the range of 2.5∼3.3 during the coldest month, January, with a monthly average temperature 7.2°C. Compared with conventional electric water heater and gas water heater, the SEWHS-AHP is economical feasible.

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