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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2008, Vol. 9 Issue (7): 970-980    DOI: 10.1631/jzus.A0720143
Energy Engineering     
Numerical study of PV/T-SAHP system
Gang PEI, Jie JI, Ke-liang LIU, Han-feng HE, Ai-guo JIANG
Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China
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Abstract  In order to utilize solar energy effectively and to achieve a higher electrical efficiency by limiting the operating temperature of the photovoltaic (PV) panel, a novel photovoltaic/thermal solar-assisted heat pump (PV/T-SAHP) system was proposed and constructed. The hybrid solar system generates electricity and thermal energy simultaneously. A distributed parameters model of the PV/T-SAHP system was developed and applied to analyze the system dynamic performance in terms of PV action, photothermal action and Rankine cycle processes. The simulation results indicated that the coefficient of performance (COP) of the proposed PV/T-SAHP can be much better than that of the conventional heat pump. Both PV-efficiency and photothermic efficiency have been improved considerably. The results also showed that the performance of this PV/T-SAHP system was strongly influenced by the evaporator area, tube pitch and tilt angle of the PV/T evaporator, which are the key factors in PV/T-SAHP system optimization and PV/T evaporator design.

Key words： Photovoltaic (PV)      Photothermic      Heat pump      Photovoltaic/thermal (PV/T) evaporator     
Received: 24 December 2007     
CLC:  TK01  
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Gang PEI
Jie JI
Ke-liang LIU
Han-feng HE
Ai-guo JIANG
Cite this article:

Gang PEI, Jie JI, Ke-liang LIU, Han-feng HE, Ai-guo JIANG. Numerical study of PV/T-SAHP system. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(7): 970-980.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0720143     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2008/V9/I7/970

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