环境条件和冷却水流量对光伏光热系统的性能影响  

Environmental conditions and cooling water flow rates influence on the performance of the photovoltaic/thermal system

作　　者：庞玮 于洪文[1] 张林睿 崔雅楠 张永哲[1] 严辉[1] Pang Wei;Yu Hongwen;Zhang Linrui;Cui Yanan;Zhang Yongzhe;Yan Hui(College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China;College of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China)

机构地区：[1]北京工业大学材料科学与工程学院,北京100124 [2]武汉理工大学材料科学与工程学院,湖北武汉430070

出　　处：《可再生能源》2018年第4期501-505,共5页Renewable Energy Resources

基　　金：国家自然科学基金面上项目(61574009)

摘　　要：环境条件对光伏光热(PV/T)系统性能的影响十分显著。文章通过改变实验室内部的环境条件,对比分析了通风、密闭条件下,不同冷却水流量对PV/T系统的输出性能以及光伏组件温度的影响。实验结果表明:密闭条件下PV/T组件工作温度与周围环境温度的平均值比通风条件下高出约7℃;密闭条件下PV/T系统的输出功率、热效率比通风条件下分别增大约3.5%,13%。The performance of the photovoltaic/thermal（PV/T）system could be significant varied with environmental conditions.This paper has comparatively analyzed the output performances of the PV/T system and temperature variations of the PV/T component under airtight and ventilation conditions,which are impacted by the mass flow rate of the cooling water via changing the laboratory indoor environmental factors.The results show that the average temperatures of the PV/T component and around environment would be higher of 7 ℃ in the airtight than ventilation.In addition,the output power of PV/T system has increased by 3.5% under airtight than ventilation.Similarly,the thermal efficiency of the PV/T system could be increased by 13%.

关 键 词：环境因素 温度变化 系统性能 

分 类 号：TK519[动力工程及工程热物理—热能工程]