摘要
对采用光伏/光热(PV/T)组件的太阳能直膨式热泵系统进行数学模型的构建及参数分析。将PV/T模块与热泵蒸发器进行耦合形成直膨式太阳能PV/T热泵,降低PV背板温度提高发电效率的同时提高蒸发压力和蒸发温度,从而提高热泵效率。模拟结果表明,系统COP随PV/T组件面积的增大、太阳辐射的增强和环境温度的升高而上升。在太阳辐照强度为600 W/m^(2)时,系统COP为5.79,其发电、集热及总效率分别为17.77%、55.76%与75.49%。同时,PV组件除提供热泵系统所需电量以外,可输送其21.4%电量至电网。
The mathematical model of direct expansion solar assisted heat pump system based on photovoltaic/thermal(PV/T)panel has been constructed and the parameter analysis have been conducted. The PV is coupled with evaporator to form a direct-expansion PV/T module,which reduces the PV cells’ temperature and improves the overall efficiency while increasing the evaporating pressure and temperature. The system COP increases with the increase of PV/T area,solar radiation,and ambient temperature. The system COP can reach 5.79 when the solar radiation intensity is 600 W/m^(2),and the electrical,thermal and overall efficiencies is 17.77%,55.76%and 75.49%,respectively. Moreover,the PV panel can meet the power demand of the system while providing 21.4% electricity to the power grid.
作者
姚剑
彭浩
寿春晖
徐辉
赵耀
代彦军
Yao jian;Peng Hao;Shou Chunhui;Xu Hui;Zhao Yao;Dai Yanjun(School of Mechanical Engineering,Engineering Research Center of Solar Energy and Refrigeration,MOE,Shanghai Jiao Tong University,Shanghai 200240,China;Zhejiang Energy Group R&D Institute Co.,Ltd.,Hangzhou 310001,China;Zhejiang Provincial Key Laboratory of Solar Energy Utilization&Energy Saving Technology,Hangzhou 310001,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2021年第12期35-40,共6页
Acta Energiae Solaris Sinica
关键词
热泵
直膨式
太阳能
热电联产
PV/T
heat pump
direct expansion
solar energy
heat and power generation
PV/T
