基于AHP-熵权法的既有居住建筑节能改造效果评价

Evaluation of Energy-saving Reconstruction Effect of Existing Residential District Based on AHP-entropy Weight Method

通过分析国内既有居住建筑节能改造发展现状,针对当前既有居住建筑节能改造效果评价体系尚不完善这一问题,从可持续发展的角度出发,综合考虑了建筑与结构、能源利用、室内环境、外围护结构、设备运行、经济效益和社会效益7个方面,构建了具备3个层次结构的评价指标体系,并根据该体系建立基于AHP-熵权法的既有居住建筑节能改造效果模糊综合评价模型,实现指标量化分析。将该模型应用于兰州市城关区某既有居住建筑节能改造项目,定量计算出该项目节能改造效果评价得分为84.71分,说明该项目节能改造效果总体较好,所构建模型与实际情况相符,验证了模型的合理性,以期为我国既有居住建筑节能改造后的整体效果评价提供一种新的研究角度和方法。

By analyzing the current situation of the development of domestic existing residential building energy-saving reform,in view of the current evaluation system of existing residential building,the energy-saving effect still is not perfected.From the perspective of sustainable development,roundly considering the architecture and structure,energy utilization,indoor environment,envelope structure,equipment operation,economic and social benefit,an evaluation index system with three structural levels is constructed.And according to this system,based on AHP-entropy weight method a fuzzy comprehensive evaluation model that is used to evaluate the effect of energy-saving transformation of residential buildings is established to analyze quantitatively.The model is utilized to assess an existing residential building energy-saving retrofitting project in Lanzhou,and the evaluation score of the project is 84.71,indicating that the project energy conservation retrofitting effect is generally good,and the built model is consistent with the actual situation,which verifies that the model is reasonable and provides a new research angle and method for the evaluation of the overall effect of the existing residential buildings after energy-saving retrofitting in China.