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Highly effective photon-to-cooling thermal device.
Scientific Reports ( IF 3.8 ) Pub Date : 2019-12-17 , DOI: 10.1038/s41598-019-55546-4 Yanpei Tian 1 , Lijuan Qian 2 , Xiaojie Liu 1 , Alok Ghanekar 3 , Gang Xiao 2 , Yi Zheng 1
Scientific Reports ( IF 3.8 ) Pub Date : 2019-12-17 , DOI: 10.1038/s41598-019-55546-4 Yanpei Tian 1 , Lijuan Qian 2 , Xiaojie Liu 1 , Alok Ghanekar 3 , Gang Xiao 2 , Yi Zheng 1
Affiliation
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Photon-to-cooling phenomenon relies on the atmospheric transparency window to dissipate heat from the earth into outer space, which is an energy-saving cooling technique. This work demonstrates a highly effective aluminized Polymethylpentene (PMP) thin-film thermal structure. The emissivity of aluminized PMP thin films matches well to the atmospheric transparency window so as to minimize parasitic heat losses. This photon-to-cooling structure yields a temperature drop of 8.5 K in comparison to the ambient temperature and a corresponding radiative cooling power of 193 W/m2 during a one-day cycle. The easy-to-manufacture feature of an aluminized PMP thin film makes it a practically scalable radiative cooling method.
中文翻译：
高效的光子冷却散热装置。
光子致冷现象依靠大气透明窗口将热量从地球散发到外层空间，这是一种节能的冷却技术。这项工作演示了高效的铝化聚甲基戊烯（PMP）薄膜热结构。镀铝的PMP薄膜的发射率与大气透明窗口非常匹配，从而将寄生热损失降至最低。与环境温度相比，这种光子冷却结构在一天的周期内会产生8.5 K的温度下降，相应的辐射冷却功率为193 W / m2。镀铝的PMP薄膜易于制造的特性使其成为一种实用的可扩展辐射冷却方法。
更新日期：2019-12-18
中文翻译：
高效的光子冷却散热装置。
光子致冷现象依靠大气透明窗口将热量从地球散发到外层空间，这是一种节能的冷却技术。这项工作演示了高效的铝化聚甲基戊烯（PMP）薄膜热结构。镀铝的PMP薄膜的发射率与大气透明窗口非常匹配，从而将寄生热损失降至最低。与环境温度相比，这种光子冷却结构在一天的周期内会产生8.5 K的温度下降，相应的辐射冷却功率为193 W / m2。镀铝的PMP薄膜易于制造的特性使其成为一种实用的可扩展辐射冷却方法。
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