化工学报2016，Vol.67Issue(z2)：291-297,7.DOI:10.11949/j.issn.0438-1157.20161398
基于光电/光热一体化的太阳能热泵性能分析
Performances of PV/T solar-assisted heat pump system
摘要
Abstract
Solar photovoltaic/thermal integrated heat pump (PV/T-HP)is expected to realize comprehensive utilization of photovoltaics and thermal.To analyze the performance of PV/T-HP,mathematical models of PV/T evaporator,compressor,water tank and thermal expansion valve are established respectively and linked to form a complete thermodynamic cycle based on energy conservation,mass conservation equation.Simulation is carried out through MATLAB.The model accuracy is validated through direct expansion solar assisted heat pump (DX-SHAP)experiments.The result shows that the simulation error is about 5%,which is acceptable.Comparing the performance of PV/T-HP and DX-SHAP,with the rise in solar radiation intensity,COP both increases.With high solar radiation intensity,COP of PV/T-HP can be more than 5.The comprehensive COP of PV/T-HP is 7.4 on average,which is higher than that of DX-SHAP.The result shows that,PV/T-HP is conductive to reduce energy consumption of the system and improve the photoelectric conversion efficiency of photovoltaic modules,so it has more benefit on energy-saving.关键词
太阳能/再生能源/太阳能热泵/光伏光热一体化/数学模拟Key words
solar energy/renewable energy/solar-assisted heat pump/photovoltaic/thermal/mathematical modeling分类
能源科技引用本文复制引用
李冠群,孙晓琳,陈金峰,代彦军..基于光电/光热一体化的太阳能热泵性能分析[J].化工学报,2016,67(z2):291-297,7.基金项目
国家自然科学基金项目(51476099)。@@@@supported by the National Natural Science Foundation of China (51476099) （51476099）
