辐射冷却
被动冷却
环境科学
热辐射
主动冷却
辐射传输
地球的能源预算
辐射能
水冷
辐射
气象学
大气科学
物理
机械
热力学
光学
传热
作者
Lufang Chen,Kai Zhang,Mingquan Ma,Saihong Tang,Fēi Li,Xiaofeng Niu
标识
DOI:10.1007/s12273-020-0646-x
摘要
Radiative cooling can effectively reduce energy consumption for building applications. As a passive cooling technology, a radiative cooling system radiates heat into space via infrared radiation whenever the effective sky temperature is colder than the body surface. Although radiative cooling has been proposed for many years, its application is limited to nighttime operation due to the constraints of the materials and diurnal radiative cooling technology. The radiative cooling surfaces recently developed, which can produce approximately 100 W/m2 average daily cooling power, are perfectly applicable for employment in a passive cooling system during the day. This paper reviews the development of radiative cooling techniques and their application in buildings. The existing models for the heat balance of radiative cooling systems are introduced, and the contributions of solar radiation, forced convection, and atmospheric conditions are also discussed in detail. Recent advancements in diurnal cooling approaches and associated radiative cooling surfaces are outlined, and the application prospects are analyzed, accounting for the energy saving potential. In addition, several feasible radiative cooling systems are proposed in this study.
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