室内换气排污效果的评价指标

Evaluating index of room ventilation effectiveness

就空调送风气流组织排除室内污染物能力的评价,介绍了北欧及英国学者采用拉格朗日法提出的空气龄、换气效率、排污效率等概念,详细推导了示踪气体浓度与局部平均空气龄的关系,阐述了换气效率与排污效率的关系。

For evaluating the degree to which the supply air can remove indoor contaminants,gives an introduction to the concepts of the age of air,air exchange efficiency,ventilation efficiency,etc. initiated by Nordic and British researchers based on Lagrangian method,derives the relationship between trace gas concentration and local average age of air,and demarcates the concepts of air exchange efficiency and ventilation efficiency.