北京地区临时建筑围护结构改造实验研究OA

Using two single story temporary buildings without air conditioning installed in Yanqing District,Beijing as experimental objects,energy-saving renovation was carried out on the enclosure structure,and the effects of roof,floor,exterior window and roof sprinkler renovation on the indoor thermal environment in summer were compared.After replacing with a blue waterproof roof with eaves,the indoor temperature of the temporary building decreases at noon due to the shading effect of the eaves.Improving the thermal in-sulation and air tightness of the floor is not conducive to improving the indoor thermal environment in sum-mer.Reducing the area of exterior windows and attac-hing Low-E film can help improve the indoor thermal comfort in summer.When the solar irradiance is high,the effect of roof spraying on reducing the indoor tem-perature is obvious.When the solar irradiance is low,the effect of roof spraying on reducing the indoor tem-perature is not obvious.Under similar outdoor environ-mental conditions,compared to before the energy-sav-ing renovation,the indoor temperature of temporary buildings after the energy-saving renovation is de-creased by 11.3 ℃,a decrease of 24.6％.The ener-gy-saving renovation of temporary buildings and the in-troduction of passive technology can effectively reduce indoor temperature in summer and improve the thermal comfort.