基于PDMS/Al平面制冷器的辐射制冷光热管理研究

Research on Solar and Thermal Management of Radiation Cooling Based on PDMS/Al Plane Cooler

通过设计合理的热管理措施,使聚二甲基硅氧烷(PDMS)/铝平面制冷器的效率提高了近35%。对比了定向遮阳、移动遮阳和定向(向北)辐射对抑制太阳辐射增益的抑制效果,使用低成本辐射制冷材料实现日间辐射制冷。结果表明,在晴朗的天气下实现了3.9~13.1℃的全天降温。最大制冷功率为76.8 W/m^(2)。这种光热管理措施的结合会影响辐射制冷在建筑节能领域的应用。

The efficiency of the polydimethylsiloxane(PDMS)/aluminum planar cooler was improved by nearly 35%through well-designed thermal management measures.Daytime radiative cooling was realized by using low-cost radiative cooling materials,through directional shading.The results show that an all-day cooling range of 3.9~13.1℃ is achieved under the clear weather.The maximum cooling power is 76.8W/m^(2).This combination of thermal and solar management measures may affect the application of radiative cooling in the field of building energy efficiency.