摘要
搭建环形重力热管式PV/T系统和常规PV/T系统的对比实验台,对二者在某晴天的动态性能进行对比实验研究;同时根据多天的实验数据,对两套系统的典型热效率和典型光电光热综合效率进行拟合。研究结果表明,动态对比当天二者具有相近的光热、光电、光电光热综合效率及效率;但长期运行性能拟合结果表明,环形重力热管式PV/T系统具有较高的典型热效率和典型光电光热综合效率,同时具有较大的热损系数。
Loop thermosyphon has independent and divided condensation end and evaporation end, which can realize long-distance heat transfer and integrate well with solar thermal utilization, and can also solve the common PV/T hot water system＇ s freezing problem in winter. The contrast test bench of loop thermosyphon PV/T system and common PV/T system was constructed and their comparative dynamic performances were studied on a sunny day. Besides, according to experimental data of several days, the typical thermal efficiencies and typical PV/T overall efficiency of two systems were fitted. The results show that the two comparative systems have the similar photothermal, photovoltaic, PV/T overall efficiencies and exergy efficiency on that day; however, the long term performance fitting results show that the loop thermosyphon PV/T system has higher typical thermal efficiency and typical PV/T overall efficiency, but also has bigger heat loss coefficient.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2017年第12期3251-3258,共8页
Acta Energiae Solaris Sinica
基金
上海电力学院人才引进基金(K2015-007)
上海高校青年教师培养资助计划(ZZsdl15076)
双师计划(A-0008-15-206)
关键词
太阳能
热管
效率
炯
solar energy
heat pipe
efficiency
exergy
