通风模块对相变-通风光伏幕墙的热电性能影响  

Ventilation Module for Phase Change-Ventilated Photovoltaic Curtain Wall

作　　者：刘荣鹏 章文杰[2] 唐凯 赵英博 Liu Rongpeng;Zhang Wenjie;Tang Kai;Zhao Yingbo(China Railway Construction Group Corporation Limited,Beijing,100040;School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing,210094)

机构地区：[1]中铁建设集团有限公司,北京100040 [2]南京理工大学能源与动力学院,南京210094

出　　处：《制冷与空调(四川)》2025年第2期218-223,280,共7页Refrigeration and Air Conditioning

基　　金：中铁建设集团有限公司科技研究开发计划项目(LX22-31B);国家自然科学基金青年科学基金项目(51908287)。

摘　　要：建筑排风可以降低光伏背板温度,从而减小系统向室内的热量传递,研究制备了石蜡/膨胀石墨复合相变材料,搭建相变-通风冷却光伏幕墙(BIPV-PCMV)系统和光伏建筑一体化(BIPV)系统的对比实验平台,对复合相变材料在光伏幕墙中的冷却效果进行研究,分析不同风速(1.0m/s、1.5m/s、2.0m/s、2.5m/s、3.0m/s、3.5m/s)对系统的发电性能和热工性能的影响。研究结果表明:风速为2.0m/s对电性能和系统全天的得热量的增幅最高;不同风速下,BIPV-PCMV系统的组件背板温度和室内得热量明显低于BIPV系统,光电转换效率高于BIPV系统。Building exhaust can reduce the temperature of photovoltaic backplane,thereby reducing the heat transfer from the system to the room.In this study,paraffin/expanded graphite composite phase change material was prepared,and a comparative experimental platform of phase change-ventilation cooling photovoltaic curtain wall(BIPV-PCMV) system and photovoltaic building integration(BIPV) system was built.The cooling effect of composite phase change material in photovoltaic curtain wall was studied,and the effects of different wind speeds(1.0m/s,1.5m/s,2.0m/s,2.5m/s,3.0m/s,3.5m/s) on the power generation performance and thermal performance of the system were analyzed.The results show that the wind speed of 2.0m/s has the highest increase in the electrical performance and the heat gain of the system throughout the day;under different wind speeds,the component backplane temperature and indoor heat gain of the BIPV-PCMV system are significantly lower than those of the BIPV system,and the photoelectric conversion efficiency is higher than that of the BIPV system.

关 键 词：相变-通风冷却光伏幕墙 光伏建筑一体化 发电性能 热工性能 光电转换效率 

分 类 号：TU201.5[建筑科学—建筑设计及理论] TM615[电气工程—电力系统及自动化]