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颗粒物对围护结构的穿透系数与换气次数关系的探讨 被引量：2

Correlation study on air change rate and particle penetration coefficient through building envelope
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摘要 室外颗粒污染物可以通过建筑围护结构缝隙进入室内,并对室内空气品质产生影响。通常用穿透系数来表征室外颗粒污染物穿过建筑围护结构进入室内的通过性。考虑到建筑围护结构在室内外空气交换流通和室外颗粒物进入室内的过程中所起到的关键作用,建立了室外颗粒物对围护结构的穿透系数与换气次数的关联性模型。分析、阐述了换气次数对颗粒物穿透系数的影响。通过模拟工况的数值计算,讨论了在研究室外环境对室内颗粒污染物浓度的影响中考虑穿透系数与换气次数之间关联性的必要性。 Outdoor particulate matter can enter rooms through building envelope cracks,resulting in a poor indoor air quality.Generally,the ability of outdoor particles entering indoor spaces is quantified by particle penetration coefficient.Establishes a correlation model of particle penetration coefficient and air change rate,considering the key role of building envelope structural characteristics both in the indooroutdoor air flow and the outdoor particle entering indoor spaces.Analyses and expounds the influence of air change rate on particle penetration coefficient.Discusses the necessity of the correlation between particle penetration coefficient and air change rate by a case simulation.
作者 高照 王新轲
机构地区 西安交通大学
出处 《暖通空调》 北大核心 2016年第6期14-19,共6页 Heating Ventilating & Air Conditioning
关键词 室外颗粒物 围护结构 穿透系数 换气次数 室内空气品质 outdoor particulate matter envelope penetration coefficient air change rate indoor air quality
分类号 TU834 [建筑科学—供热、供燃气、通风及空调工程]
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参考文献22

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二级参考文献25

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共引文献26

同被引文献39

引证文献2

二级引证文献24

暖通空调
2016年 第6期

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