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针对夏热冬冷地区的气候特点,采用e QUEST模拟软件对长沙市居住建筑围护结构节能技术进行对比分析。节能技术包括外墙保温层、外表面太阳辐射吸收系数、窗墙比、玻璃窗种类、遮阳系统和综合节能措施。结果表明,内遮阳和围护结构保温对全年空调能耗的影响最大,分别节能8.21%和11.31%,综合优化措施可使全年空调能耗降低25.92%。
According to the climate characteristics of hot summer and cold winter area, eQuEST simulation software was used to analyze the energy saving technologies of residential buildings in Changsha. Energy-saving technologies include exterior insulation, solar radiation absorption coefficient, window-wall ratio, types of glazing, shading systems and comprehensive energy-saving measures. The results show that the thermal insulation of the inner sunshade and the enveloping structure have the greatest impact on the energy consumption of air conditioners throughout the year, saving 8.21% and 11.31% respectively. Comprehensive optimization measures can reduce the annual energy consumption of air conditioners by 25.92%.