应用于志愿者服务站的被动辐射制冷涂层降温性能研究
Study on the Cooling Performance of Passive Radiative Cooling Coating Applied to Volunteer Service Stations

城市志愿服务站主要分布在社区、赛事场馆和酒店周边、重要交通枢纽、商业网点、旅游景点、文化广场等人流集中区域。随着全球气候变暖，气温上升，服务站面临高温、炎热现实挑战，室内空调耗电量也随着气温的上升而上涨，而部分不具备空调的站点内的志愿者的办公环境愈发严峻，热舒适度大幅度下降。被动辐射制冷技术是一种新兴的绿色零碳制冷技术，反射绝大部分太阳光并通过中红外线辐射实现被动式制冷的效果，无需耗电即可以大幅度降低表面温度，对城市志愿服务站的降温防晒、节能减排有着积极的作用。经实验测试，涂敷了被动辐射制冷涂层的服务站比未处理的服务站外表面温度平均降低了16℃以上。
Urban volunteer service stations are primarily located in areas with high foot traffic, such as communities, sports venues, hotel districts, key transportation hubs, commercial facilities, tourist attractions, and cultural squares. With global warming leading to rising temperatures, these service stations face challenges from heat and high temperatures. The energy consumption of indoor air conditioning also increases as temperatures rise, while volunteers in stations without air conditioning endure increasingly harsh working conditions, with significantly reduced thermal comfort. Passive radiative cooling technology is an emerging green, zero-carbon cooling solution that reflects most sunlight and achieves passive cooling through mid-infrared radiation, effectively lowering surface temperatures without electricity consumption. This technology plays a positive role in cooling, sun protection, energy conservation, and emission reduction for urban volunteer service stations. Experimental tests show that stations coated with passive radiative cooling coating materials exhibit an average surface temperature reduction of over 16？C compared to uncoated stations.