新型平板热管式PV/T热泵系统的集热模块优化研究  

Optimization study on the collector module of the novel flat plate heat pipe PV/T heat pump system

作　　者：陈红兵[1] 李宝武 王聪聪 姚华宁 张晓坤 赵瑞 孙俊辉 CHEN Hongbing;LI Baowu;WANG Congcong;YAO Huaning;ZHANG Xiaokun;ZHAO Rui;SUN Junhui(School of Environment and Energy Engineering Beijing Municipal Key Laboratory of HVAC,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京建筑大学北京市供热供燃气通风及空调工程重点实验室,北京100044

出　　处：《热科学与技术》2021年第4期357-363,共7页Journal of Thermal Science and Technology

基　　金：国家重点研发计划资助项目(2016YFE0102300-08,2016YFC0700100);北京市教委科技计划资助项目(KM202010016012)。

摘　　要：建立了新型平板热管式PV/T热泵系统的数学模型,通过实验测量得到系统在各工况下运行时的实验数据,并验证了模型的准确性和可靠性。基于验证后的数学模型,对系统的热性能、电性能和热泵系统的性能进行模拟研究。结果表明,在冬季工况下,系统的日平均热功率、电功率和COP分别为274.5 W、93.5 W和2.7。由于冬季室外环境温度较低,在冬季运行时,集热系统会通过光伏板表面向周围环境散失大量的热,导致系统的集热量不能满足热泵侧的热需求,直观表现为蒸发侧集热水箱水温在全天呈现下降的趋势。因此通过增加集热器对系统的集热模块进行优化,优化后系统的日平均热功率提升至654.2 W,COP提升至6.9。A mathematical model of a novel flat plate heat pipe PV/T heat pump system was established, and the experimental data of the system under various operating conditions were obtained, which verified the accuracy and reliability of the model. Based on the verified mathematical model, the thermal performance, electrical performance and heat pump system were simulated. The results show that in winter conditions, the daily average thermal power, electric power and C OP of the system are 274.5 W, 93.5 W and 2.7, respectively. Due to the low outdoor ambient temperature in winter, the heat collection system will lose a lot of heat to the surrounding through the surface of the photovoltaic panel in winter, resulting in that the heat collection of the system cannot meet the heat demand on the heat pump side, which is directly reflected in the decreasing trend of the water temperature of the evaporative side heat collection tank throughout the day. Therefore, the heat collection module of the system is optimized by adding a heat collector. After optimization, the daily average thermal power of the system is increased to 654.2 W, and the C OP is increased to 6.9.

关 键 词：平板热管 PV/T 热泵 数值模拟 性能优化 

分 类 号：TK519[动力工程及工程热物理—热能工程]