煤气与热力2026，Vol.46Issue(1)：20-26,7.
寒冷地区农村商住两用建筑近零能耗节能改造
Energy Conservation Retrofit for Near-Zero Energy Consumption of Rural Commercial-Residential Buildings in Cold Regions
王昊锋 1孙金栋 1苏虹茜 1文浩宇 1汪材竹1
作者信息
- 1. 北京建筑大学环境与能源工程学院,北京 100044
- 折叠
摘要
Abstract
A rural mixed-use commercial-residential building in Beijing was selected as the case study,where comprehensive field measurements were con-ducted to evaluate the thermal performance of building envelope and energy consumption patterns.Through DeST simulation analysis,the near-zero energy retrofit was evaluated.The measured results demonstrated that the envelope thermal performance failed to meet the re-quirements of Technical Standard for Nearly Zero En-ergy Buildings(GB/T 51350-2019),revealing signifi-cant energy-saving potential.The annual electricity consumption was found to be stable,with over 50％be-ing consumed during heating periods,while operational variations during holidays were observed to signifi-cantly affect power consumption.The reduction of heat transfer coefficients in building envelope components was adopted as the primary retrofit approach for achiev-ing near-zero energy consumption.Although varying contributions to energy savings were observed among different envelope elements—with exterior walls and floor insulation even demonstrating a potential increase in cooling energy demand—the overall strategy of re-ducing heat transfer coefficients was verified to be cru-cial for attaining near-zero energy targets.Particular at-tention was required for critical components such as ex-terior doors.The simulation results indicated that an annual energy consumption of 45.55 kW·h/(m2·a)could be achieved,which was verified to be lower than the near-zero energy standard's threshold of 55 kW·h/(m2·a)specified in GB/T 51350-2019,thus confirm-ing the effectiveness of the proposed retrofit measures.关键词
寒冷地区/农村商住两用建筑/近零能耗建筑Key words
cold regions/rural commercial-residential buildings/near-zero energy buildings分类
建筑与水利引用本文复制引用
王昊锋,孙金栋,苏虹茜,文浩宇,汪材竹..寒冷地区农村商住两用建筑近零能耗节能改造[J].煤气与热力,2026,46(1):20-26,7.
