低碳视角下北京西四北二条3号院更新改造与能耗模拟研究  

Renewal and Energy Consumption Simulation of Beijing’s Old City Courtyards from a Low Carbon Perspective

作　　者：张曼 曹雪萦 汤羽扬 ZHANG Man;CAO Xueying;TANG Yuyang(School of Architecture and Urban Planning,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Architectural Heritage Institute,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京建筑大学建筑与城市规划学院,北京100044 [2]北京建筑大学建筑遗产研究院,北京100044

出　　处：《建筑节能（中英文）》2024年第1期109-113,148,共6页Building Energy Efficiency

基　　金：国家自然科学基金重点项目(51938002);2019年度中国建设教育协会教育教学科研立项(2019006);北京市教委科研项目科技计划面上项目(KM202010016017)。

摘　　要：通过实地调研北京老城西四北头条至八条历史文化街区的四合院传统民居,并与居民开展改造诉求访谈,在提升人居环境的基础上探索合适的改造策略,借助EnergyPlus能耗模拟研究改造前后能耗变化,达到老城民居低碳节能改造的目的,并分析其在探索中国典型四合院民居的能源性能改善方法的意义。研究结果表明,改造后的民居全年耗能18960.21 kW·h,平均每平方米供暖能耗为19.64 kW·h/(m^(2)·a)。改造后的各房屋围护结构系数均发生变化,如建筑外墙传热系数优化为0.259 W/(m^(2)·K),屋顶传热系数优化为0.181 W/(m^(2)·K),楼板传热系数优化为0.131 W/(m^(2)·K),外窗传热系数优化为1.1 W/(m^(2)·K),符合北京当前对于住宅节能的相关规范。如果一套保温性能更好的四合院传统民居能够在城市更新进程中作为一个组成部分传承下来,将有助于中国老城历史片区传统风貌保护与传统建筑低碳节能优化。The traditional courtyard houses are investigated in the Xisi North historical and cultural district of Beijing's old city,and the residents are interviewed for their retrofitting demands,suitable retrofitting strategies are explored based on the improvement of the living environment,the changes in energy consumption before and after retrofitting are simulated with EnergyPlus,achieving low-carbon and energy-saving retrofit of the old city houses,and analyzing its significance in exploring the energy performance improvement of typical courtyard houses in China.The results of the study show that the retrofitted residential houses are good example of energy efficiency.The retrofitted residential houses consume 18960.21 kW·h of energy per year,with an average heating energy consumption of 19.64 kW·h/(m^(2)·a) per square metre,a heat transfer coefficient of 0.259 W/(m^(2)·K) for the building envelope,0.181 W/(m^(2)·K) for the roof,0.131 W/(m^(2)·K) for the floor,and 1.1 W/(m^(2)·K) for the external windows,which is in line with current regulations for residential energy efficiency in Beijing.If a set of traditional courtyard houses with better insulation performance can be passed on as an integral part of the urban regeneration process,it will contribute to the preservation of the traditional style of China's old city historical areas and the optimisation of low carbon and energy efficiency of traditional buildings.

关 键 词：城市更新 北京老城四合院 能源性能 ENERGYPLUS 

分 类 号：TU201.5[建筑科学—建筑设计及理论]