大空间室内空气质量的空间流动影响因子分析

对兰州市某大型超市的热环境测试与空气质量问卷调查结果显示该超市存在严重空气质量问题。本文首先提出了在超市这样的大空间应采取传统通风与个性化通风相结合的措施,而后应用空间流动影响因子理论对个性化通风中气流组织形式进行了选择并对其除污效果作了定性分析。研究方法及结论对于大空间中点源污染问题的局部处理以及通风空调系统的设计、运行管理等有一定的指导意义。

Analysis on Indoor Air Quality of Large Space by Spatial Flow Influence Factor

Results of thermal environment measurement and questionnaire investigation as to air quality of a supermarket in Lanzhou indicated that the indoor air quality was very poor.In this paper,the strategy of conventional ventilation and personalized ventilation was firstly put forward to be employed simultaneously in large spaces,such as supermarket.Secondly,spatial flow influence factor was applied to choose the optimized air distributions and analyze the effect of eliminating contaminants.It was indicated that methods and results presented here were useful for the disposal of local contamination,design of HVAC and management of large space.