内蒙古西部超低能耗草原民居外结构节能优化研究  

Energy-saving Optimization of the Peripheral Structure of Ultra-Low Energy-Consuming Residential Buildings in Western Inner Mongolia

作　　者：金国辉[1,2] 李佳 杨鹏 陈伟 JIN Guohui;LI Jia;YANG Peng;CHEN Wei(School of Civil Engineering,Inner Mongolia University of Science and Technology,Baotou 014010;State Key Laboratory of Green Buildings in the West,Xian University of Architecture and Technology,Xi'an 710043)

机构地区：[1]内蒙古科技大学土木工程学院,包头014010 [2]西安建筑科技大学西部绿色建筑国家重点实验室,西安710043

出　　处：《科技促进发展》2021年第7期1402-1410,共9页Science & Technology for Development

基　　金：2017年国家自然科学基金地区项目(51768053):多目标优化导向的内蒙古西部草原民居被动式超低能耗建筑营造策略研究,负责人:金国辉;2019年内蒙古自治区自然科学基金面上项目(2019MS05007):基于多能耦合的内蒙古西部草原民居被动式超低能耗建筑节能策略研究,负责人:金国辉;2018年西部绿色建筑重点实验室培育基地开放课题资助项目(LSKF201803):内蒙古西部草原民居被动式超低能耗建筑营造策略研究,负责人:金国辉。

摘　　要：为解决内蒙古西部草原民居建筑因外围护结构设计不科学而造成的室内热环境质量差、能源浪费量大及供热能效低的问题。文章对内蒙古西部初始民居进行了分析,利用DeST软件优化建筑结构、替换保温材料、增加保温层厚度、更换外窗等方式研究外围护结构保温隔热性能对建筑能耗的影响,并对其经济性进行分析。通过净现值法,计算出了适合内蒙古西部草原民居的三种外保温材料不同厚度的净现值和节能率。结果表明:外墙围护结构的优化对建筑整体节能效果最好,节能率可达20.92%。内蒙古西部超低能耗草原民居外围护结构优化的综合节能率超过86.7%,冬季采暖能耗为29.75kW·h/m^(2)。The study aimed to solve the western Inner Mongolia grassland dwellings'problems of poor indoor thermal environment quality,large energy waste and low heating efficiency caused by unscientific design of the outer envelope structure of residential buildings.The initial residential houses in western Inner Mongolia were analyzed,and the DeST software was used to optimize the building structure,replace thermal insulation materials,increase the thickness of the thermal insulation layer,and replace external windows to study the impact of the thermal insulation performance of the external protective structure on the building energy consumption,and its economic performance analysis was conducted.Through the net present value method,the net present value and energy-saving rate of the three types of external insulation materials with different thicknesses suitable for the grasslands in western Inner Mongolia were calculated.The results showed that the optimization of the outer wall enclosure structure obtained the best effct on the overall energy saving of the building,and the energy saving rate could reach 20.92%.The overall energy saving rate of the outer protection structure optimization of ultra-low energy grassland residential buildings in westerm Inner Mongolia exceeded 86.7%,and the heating energy consumption in winter was 29.75 kW·h/m^(2).

关 键 词：超低能耗 草原民居 外围护结构 

分 类 号：TU111.48[建筑科学—建筑理论]