Numerical study of PV/T-SAHP system  

作　　者：Gang PEI Jie JI Ke-liang LIU Han-feng HE Ai-guo JIANG 

机构地区：[1]Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2008年第7期970-980,共11页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：the National Natural Science Foundation ofChina (No. 50708105);partly supported by the Natural ScienceFoundation of Anhui Province (No. 070414161), China

摘　　要：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 PWT-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.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 pa-rameters 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 photo-thermic 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.

关 键 词：Photovoltaic （PV） Photothermic Heat pump Photovoltaic/thermal （PV/T） evaporator 

分 类 号：TK01[动力工程及工程热物理]