基于多因素正交实验的关中民居节能优化分析  

Energy saving optimization analysis for rural buildings in Guanzhong Area based on multi-factor orthogonal experiment

作　　者：朱轶韵[1] 陈习习 马召熙 余咪咪[1] ZHU Yiyun;CHEN Xixi;MA Zhaoxi;YU Mimi(Faculty of Civil Engineering and Architecture,Xi’an University of Technology,Xi’an 710048,China)

机构地区：[1]西安理工大学土木建筑工程学院,陕西西安710048

出　　处：《西安理工大学学报》2024年第2期151-159,共9页Journal of Xi'an University of Technology

基　　金：国家自然科学基金资助项目(52078419)。

摘　　要：为解决陕西关中地区民居建筑围护结构热工性能不佳、采暖效率低的问题,本文以关中典型民居为研究对象,从建筑外围护结构和窗墙比方面展开关中民居节能优化分析。结合现场测试调研数据,通过DesigBuilder软件模拟能耗,探究围护结构构造和窗墙比大小对关中民居建筑热负荷、冷负荷、全生命周期投资收益比的影响,采用多因素正交实验方法耦合分析各优化方案的节能性与经济性,选出最适宜的综合节能策略。结果表明关中民居最佳节能优化策略为外墙加设80 mm厚EPS保温层、屋顶加设60 mm厚XPS保温层、外窗改用普通中空5+9A+5玻璃、北向窗墙比0.1、南向窗墙比0.3。优化后关中典型民居节能61.98%,冬季典型气象日室内平均温度上升2.78℃。To address the issues related to the poor thermal performance and low heating efficiency of residential building envelopes in the Guanzhong area of Shaanxi Province,this study focuses on typical residential buildings in the region and analyzes energy-saving optimizations concerning the building envelope and window-to-wall ratio.Using field test and survey data,the DesignBuilder software simulated energy consumption to investigate the impact of the envelope structure and window-to-wall ratio on the heating load,cooling load,and life-cycle investment return ratio of residential buildings in the Guanzhong area.A multi-factor orthogonal experimental method is employed to analyze the energy conservation and economy of each optimization plan with the most suitable comprehensive energy conservation strategy selected.The results indicate that the optimal energy-saving strategy for residential buildings in the Guanzhong area is to incorporate an 80 mm thick EPS insulation layer on the exterior wall,add a 60 mm thick XPS insulation layer to the roof,use standard hollow 5+9A+5 glass for the exterior windows,and maintain a north-facing window-to-wall ratio of 0.1,along at a south-facing ratio of 0.3.After optimization,typical residential buildings in the Guanzhong area saved 61.98%of energy,with the average indoor temperature increased by 2.78℃on typical winter days.

关 键 词：关中民居 节能优化 建筑能耗 经济性分析 正交实验 

分 类 号：TU201.5[建筑科学—建筑设计及理论]