真空镀铝和湿法镀银太阳能反光镜的耐候性

Weatherproof Ability of Vacuum-Aluminized and Wet-Silvered Solar Reflecting Mirror

一、前言 太阳能反光镜长期室外使用,除要求有高的光反射率和好的机械性能外,耐久性也是一个重要问题。在使用过程中,人们已注意到相对湿度、气温、光照及雨水淋浸等外界因素对太阳能反光镜性能的影响。许多情况表明,太阳能反光镜的耐候性能与其使用寿命密切相关。

The study of the weatherproof ability of vacuum-aluminized and wet-silvered solar reflecting mirror was described in this paper. The results showed that humidity and water vapour are the major factors affecting the reflectivity of mirror. Temperature has effect as catalysis of heat. Effect of sunlight on reflectivity is negligible. The weatherproof ability of vacuum aluminized mirror is better than that of wet-silvered mirror.