箱式地下车库通风量确定方法

根据全面通风的质量平衡定律，基于室内空气污染物质量平衡方程的箱式模型，并采用视车道为线源的污染物点源计算方法计算出地下车库内汽车尾气CO的排放量，并由此推导出地下车库通风量的动态计算公式．结合某一具体工程进行计算和分析表明，该方法较以往各国常用的体积换气次数法和单位地面面积法更能真实反映地下车库通风量的动态变化，切合实际；这一基于箱式模型的地下车库通风量确定方法及其结构是正确的，为在实际条件下方便而准确地得到用于通风节能控制目的的地下车库通风量的确定找到了一种新的方法．该实验测量和理论分析方法都比较简单，可以直接推广于工程实际中．

Determining Method of Ventilation Rate in Box Model Underground Parking Garages

Based on the mass balance law of ventilation in an all-round way and the box model for mass balance equation of indoor air pollutants, the emission of CO from automobiles in the underground garage can be calculated, and the dynamic formula for calculating the ventilation quantity is deduced in this paper. By calculation the method of point pollution source is used, in which the driveway is regarded as a line pollution source. By application in an actual project, the results show this method can better reflect the dynamic change of ventilation quantity in underground parking garage, compared with the usual methods. This indicates that this method and its structure are correct and can be used to calculate the ventilation quantity with the aim of energy-saving correctly and conveniently in practice. The experimental test and the theoretic analysis method in this paper are both simple, and can be applied in practice.