【摘要】 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,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,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。说明本文提出的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正确地得到用于通风节能控制目的的地下车库通风量确定找到了一种新的方法。本文的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。更多还原

【Abstract】 Based on mass balance law of overall ventilation and box model for mass balance equation of indoor air pollutants, the emissions of CO from automobiles in underground garage were calculated with the assumption that the car lane is taken as linear pollutant source. The dynamic formula for calculating the ventilation rate was deduced. The method was validated with apractical project. It was shown that this method can reflect the dynamic change of ventilation rate in underground parking garage, compared with the traditional methods, which indicated that this method and its structure are correct and can be used to calculate the ventilation rate with the aim of energy-saving correctly and conveniently. The experimental test and the theoretical analysis method proposed are simple, and can be applied in practice.更多还原