摘要
外墙和外窗共同构成了建筑外围护结构,不同窗墙面积比情况下,自然通风建筑室内热环境对二者保温性能的敏感性不同。采用理论分析和数值计算相结合的方法,分析了外墙和外窗传热系数对夏季和冬季室内热环境的影响规律。结果表明,就全年而言,尽管加强外墙和外窗保温均可有效改善室内热环境,但是存在临界窗墙面积比,即当窗墙面积比小于0.6时,加强外墙保温可更有效地提高室内热舒适性,若窗墙面积比大于0.6,则加强外窗保温更为有效。
Envelopes of buildings are composed by walls and windows,whose impacts on indoor thermal environment in naturally ventilated rooms are different under different window-to-wall area ratio.The effect of heat transfer coefficient of wall and window on indoor thermal environment were analyzed in mathematical and numerical calculations.The results show that decreasing the heat transfer coefficient of wall and window can improve indoor thermal envronment significantly for a whole year,but there is a critical point of window-to-wall area ratio which is 0.6.The influence of wall heat transfer coefficient is greater than window if the window-to-wall area ratio is lower than 0.6,and conversely if the window-to-wall area ratio is higher than 0.6.
作者
袁丽婷
于加
亢燕铭
钟珂
YUAN Liting;YU Jia;KANG Yanming;ZHONG Ke(College of Civil Engineering and Architecture,Zhejiang Sci-Tech University,Hangzhou 310018,China;College of Environmental Science and Engineering,Donghua University,Shanghai 201620,China)
出处
《东华大学学报（自然科学版）》
CAS
北大核心
2020年第1期128-133,155,共7页
Journal of Donghua University(Natural Science)
基金
国家自然科学基金资助项目(51478098)。
关键词
自然通风建筑
围护结构保温性能
窗墙面积比
室内热环境
敏感性分析
naturally ventilated building
thermal insulation of envelope
window-to-wall area ratio
indoor thermal environment
sensitivity analysis
