民居建筑外墙围护低能耗控制方法仿真  

Simulation of Low Energy Consumption Control Method for Exterior Wall Enclosure of Residential Buildings

作　　者：杨勇[1] 刘显成[1] YANG Yong;LIU Xian-cheng(School of Urban Construction,Yangtze University,Jingzhou Hubei 434000,China)

机构地区：[1]长江大学城市建设学院,湖北荆州434000

出　　处：《计算机仿真》2022年第9期331-335,共5页Computer Simulation

摘　　要：当前的建筑围护结构的能耗控制方法无法满足建筑室内的气密性要求,且能耗控制效果不明显。为此提出了民居建筑外墙围护结构超低能耗控制方法。通过采集民居建筑围护结构信息,分析外墙围护结构信息权重,将传热系数、热流系数、吸热系数和透射率导入到BIM模型中,利用反应系数法计算出外墙围护结构的实际能耗值,确定导热量与墙体导热系数之间的比例关系,通过计算外墙围护结构在太阳能辐射下的导热系数极限值,建立外墙围护结构最佳导热系数的目标函数,完成建筑外墙围护结构超低能耗模型的构建。仿真结果表明,提出的外墙围护结构超低能耗控制方法在保证建筑室内气密性的前提下,围护结构的能耗达到最低,符合民居建筑超低能耗标准。At present, some methods of controlling energy consumption of building envelope are unable to meet the requirement of indoor airtightness, and the control effect on energy consumption is not obvious. Therefore, a method to control the ultra-low energy consumption of exterior envelope of residential buildings was proposed. In this method, the collected information of residential building envelope was adopted to analyzed the information weight of exterior envelope. The heat transfer coefficient, heat flow coefficient, heat absorption coefficient and transmissivity were imported into the BIM model. After that, the method of response factor was used to calculate the actual value of energy consumption of exterior envelope, and thus to determine the proportional relationship between heat conductivity and thermal conductivity of wall. After calculating the limit value of thermal conductivity of exterior enclosure under solar radiation, the objective function of optimal thermal conductivity was established. Finally, the model of ultra-low energy consumption of building exterior enclosure was built. The simulation results show zhat the proposed method can achieve the lowest energy consumption on the premise of ensuring the indoor airtightness. Therefore, this method can meet the ultra-low energy consumption standard of residential buildings.

关 键 词：超低能耗 民居建筑 围护结构 能耗控制 气密性 建筑外墙 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]