摘要
文章建立了光伏/相变材料(PV/PCM)太阳能热控系统二维模型,并根据模拟结果研究了相变材料热导率对太阳电池热控特性的影响。模拟结果表明,当PCM热导率由0.3 W/(m·K)逐渐增加至1.1 W/(m·K)时,相变材料对太阳电池的热控效果越来越好。此外,文章设计了PCM热导率分别为0.8,1.1 W/(m·K)的PV/PCM太阳能热控系统实验装置,在模拟光源和自然光条件下,对太阳能热控系统实验装置的输出功率以及太阳电池的温度进行测试。实验结果表明:在模拟光源下,与无PCM太阳电池相比,PCM热导率分别为0.8,1.1 W/(m·K)的太阳电池的最高温度分别降低了4.6,10.8℃,平均输出功率分别提高了2.2%,4.1%;在自然光条件下,与无PCM太阳电池相比,PCM热导率分别为0.8,1.1 W/(m·K)的太阳电池的最高温度分别降低了9.7,12℃,平均输出功率分别提高了3.1%,5.98%。
The effect of thermal conductivity of phase change material(PCM)on the thermal control characteristics of solar cells was studied by establishing a two-dimensional model of PV/PCM thermal control system.The results show that the thermal conductivity of PCM is in the range of 0.3~1.1 W/(m·K),and the better the thermal control effect of PCM on solar cells with the increase of thermal conductivity.In addition,a prototype PV/PCM solar thermal control system with thermal conductivity of 0.8,1.1 W/(m·K)was designed.Temperature and output power of solar cells in PV/PCM were measured under simulated light source and natural light conditions.The results show that under indoor simulated light source,the maximum temperature of solar cells decreases by 4.6,10.8℃respectively,and the average output power increases by 2.2%and 4.1%respectively,compared with that no PCM solar cells.Under natural light conditions,the maximum temperature of solar cells decreases by 9.7,12.0℃respectively,and the average power of solar cells increases by 3.1%and 5.98%,respectively.
作者
杨姚华
何永泰
肖丽仙
Yang Yaohua;He Yongtai;Xiao Lixian(School of Physics and Electronic Information,Yunnan Normal University,Kunming 650500,China;School of Physics and Electronical Science,Chuxiong Normal University,Chuxiong 675000,China)
出处
《可再生能源》
CAS
北大核心
2020年第2期172-178,共7页
Renewable Energy Resources
基金
国家自然科学基金(51566001)
云南省高校科技创新团队支持计划资助项目(2018038)
关键词
PV/PCM
相变材料
热导率
太阳电池
温控特性
PV/PCM
phase change material(PCM)
thermal conductivity
solar cells
temperature control characteristics
