辐射冷却
被动冷却
辐射传输
主动冷却
热传导
材料科学
核工程
光伏
热辐射
光伏系统
环境科学
工作(物理)
热的
被动式太阳能建筑设计
建筑集成光伏
太阳能
水冷
工程物理
光电子学
航空航天工程
能量转换效率
热力学
气象学
物理
光学
电气工程
工程类
复合材料
作者
Ze Wang,David Kortge,Jie Zhu,Zhiguang Zhou,Hans Torsina,Chang Kyun Lee,Peter Bermel
出处
期刊:Joule
[Elsevier]
日期:2020-12-01
卷期号:4 (12): 2702-2717
被引量:56
标识
DOI:10.1016/j.joule.2020.10.004
摘要
Radiative cooling can reject significantly more waste heat than convection and conduction at high temperatures by sending it directly into space. As a passive and compact cooling mechanism, radiative cooling is lightweight and does not consume energy. These qualities are promising for thermal management in outdoor systems generating low grade heat, such as concentrating photovoltaics (CPV) and thermophotovoltaics (TPV). In this work, we first simulate radiative cooling for a wide range of working conditions, including heat loads from 6 to 100 W with different CPV cooling designs. We then demonstrate a CPV system integrated with radiative coolers, achieving a 5°C to 36°C temperature drop and an 8% to 27% relative increase of open-circuit voltage for a GaSb solar cell, under a heat load of above 6 W with different cooling designs. We show that the temperature drops from radiative cooling may significantly improve CPV system lifetimes.
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