Zhu Yining, Luo Hao, Yang Chenying, Qin Bing, Ghosh Pintu, Kaur Sandeep, Shen Weidong, Qiu Min, Belov Pavel, Li Qiang
State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, 310027, Hangzhou, China.
Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, 310024, Hangzhou, Zhejiang Province, China.
Light Sci Appl. 2022 May 4;11(1):122. doi: 10.1038/s41377-022-00810-y.
Active temperature control devices are widely used for the thermal management of enclosures, including vehicles and buildings. Passive radiative cooling has been extensively studied; however, its integration with existing actively temperature regulated and decorative enclosures has slipped out of the research at status quo. Here, we present a photonic-engineered dual-side thermal management strategy for reducing the active power consumption of the existing temperature-regulated enclosure without sacrificing its aesthetics. By coating the exterior and interior of the enclosure roof with two visible-transparent films with distinctive wavelength-selectivity, simultaneous control over the energy exchange among the enclosure with the hot sun, the cold outer space, the atmosphere, and the active cooler can be implemented. A power-saving of up to 63% for active coolers of the enclosure is experimentally demonstrated by measuring the heat flux compared to the ordinary enclosure when the set temperature is around 26°C. This photonic-engineered dual-side thermal management strategy offers facile integration with the existing enclosures and represents a new paradigm toward carbon neutrality.
主动温度控制装置广泛用于包括车辆和建筑物在内的外壳的热管理。被动辐射冷却已得到广泛研究；然而，目前其与现有的主动温度调节和装饰性外壳的集成已脱离研究范围。在此，我们提出一种光子工程双侧热管理策略，以在不牺牲现有温度调节外壳美观性的情况下降低其主动功耗。通过用两种具有独特波长选择性的可见光透明薄膜对外壳屋顶的外部和内部进行涂层处理，可以实现对外壳与炽热太阳、寒冷外层空间、大气以及主动冷却器之间能量交换的同时控制。通过在设定温度约为26°C时测量热通量，与普通外壳相比，实验证明该外壳的主动冷却器可节能高达63%。这种光子工程双侧热管理策略可轻松与现有外壳集成，代表了一种实现碳中和的新范例。
