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某小区居住建筑于2005年进行了外墙外保温改造。对其节能改造前后的能耗账单进行了比较分析,直接比较的结果表明,改造后的电耗增加。为了确定节能措施的真正节能效果,对其进行了认真详细的分析,采用供暖度日数和空调焓日数分别对供暖季和供冷季的能耗进行了调整,并根据过渡季节的能耗变化对使用情况进行了调整,并对调整后的能耗进行了比较分析,结果表明,对外墙加外保温的节能改造措施具有一定的节能效果,而且还可改善室内的热舒适性。
Residential buildings in a residential area in 2005, the external insulation renovation. The comparison of energy bills before and after the energy saving retrofit shows that the power consumption after the renovation increases. In order to determine the real energy-saving effect of energy-saving measures, it was carefully analyzed in detail. The heating days and air-conditioning enthalpy days were used to adjust the energy consumption in heating season and cooling season respectively. According to the change of energy consumption during the transitional season The results show that the external energy-saving retrofit measures with external insulation have a certain energy-saving effect, but also can improve the indoor thermal comfort.