摘要
供暖建筑外窗空气渗透影响建筑耗热量和室内热舒适。采用常规外窗气密性现场测试方法获取数据,存在工作量大、效率低、人力物力投入大等弊端。文中尝试建立外窗空气渗透稳态数值模型,用实测数据验证了其准确性与合理性。仿真模型与实测实验的温度值结果基本吻合且温度趋势基本一致:模拟与实测温度结果的逐点百分比误差PE在-6.9%~5.0%内;模拟与实测空气渗透量结果的绝对误差在0.2m^(3)/h以内,相对误差在5.0%以内。验证结果可为后续外窗气密性相关研究提供数据支撑。
The air infiltration of external windows of heating buildings affects building heat consumption and indoor thermal comfort.The conventional external window air tightness field test method is used to obtain data,which has the disadvantages of large workload,low efficiency,large manpower,and material resources.This paper attempts to establish a steady-state numerical model of air infiltration in the outer window,and verifies its accuracy and rationality with the measured data.The temperature results from the simulation model is basically consistent with the results from the experimental,in which the point-by-point percentage error PE of the simulated and measured temperature results is in the range of-6.9%to 5.0%.The absolute error between the simulated and measured air permeability results is within 0.2 m^(3)/h,and the relative error is within 5.0%.The verification results may provide data support for the subsequent research on the air tightness of the outer window.
作者
熊珊珊
展长虹
王永杰
张东杰
XIONG Shanshan;ZHAN Changhong;WANG Yongjie;ZHANG Dongjie(School of Architecture and Design,Harbin Institute of Technology,Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology,Ministry of Industry and Information Technology,Harbin 150006,China)
出处
《低温建筑技术》
2024年第6期1-5,共5页
Low Temperature Architecture Technology
基金
国家自然科学基金项目“基于红外热成像的建筑外墙热阻动态辨识方法研究”(51778168)。
关键词
供暖建筑外窗
建筑耗热量
空气渗透量
模拟静压箱
气密性
the air infiltration of external windows
building heat consumption
air permeability
simulated static pressure box
air tightness
