A generalized solar and thermal management strategy for daytime radiative cooling

作者：Ming, Tingzhen; Ding, Xinyuan; Shi, Chuanjie; Chen, Qiong; Wang, Caixia; Mao, Qianjun; Yuan, Yanping; Tan, Gangfeng; Wu, Yongjia^*

来源：APPLIED THERMAL ENGINEERING, 2023, 233: 121095.

DOI：10.1016/j.applthermaleng.2023.121095

• Daytime radiative cooling
• Thermal management
• Solar management
• Building energy efficiency

Radiative cooling was a passive, energy-free technology which could be used on the roof to reduce the energy usage of buildings. The high cost of daytime radiative cooling materials limited their wide-scale application. Reasonable solar and thermal management strategies were necessary for daytime radiative cooling with affordable materials. In this paper, through rational thermal management measures, the efficiency of the planar cooler was increased by 35%. The effects of directional shading, mobile shading, and directional (northward) radiation were studied. The outdoor experiments were conducted in Wuhan, China, and achieved an effective cooling of 3.9-13.1 degrees C. The maximum cooling power was 76.8 W/m2. The combination of solar and thermal management measures has a certain impact on the use of radiative cooling in the fields of building energy efficiency.

• 单位
  西南交通大学; 武汉理工大学