客流量对铁路客运站候车室新风量的影响  

Effects of passenger flow on fresh air volume in waiting room at railway station

作　　者：李立清[1] 刘小燕[1] 马卫武[1] 孙政[1] 

机构地区：[1]中南大学能源科学与工程学院,湖南长沙410083

出　　处：《中南大学学报（自然科学版）》2010年第6期2412-2418,共7页Journal of Central South University:Science and Technology

基　　金：铁道部科技研究开发重点项目(2007Z011);国家自然科学基金资助项目(20676154);中南大学博士后基金资助项目(2010年)

摘　　要：通过对客运站候车室内客流进行仿真计算,建立CO2体积分数随客流量变化数学模型,利用数值解法对该模型进行模拟求解。采用该模型对不同换气频率时室内CO2体积分数随时间变化规律进行模拟计算。模拟结果表明：CO2体积分数随客流量同步变化,室内空气中的CO2体积分数与客流量呈正相关性;自然通风换气频率为0.4~0.8次/h不能满足旅客舒适度的要求;当机械通风换气频率为2次/h时,新风量可满足室内CO2体积分数要求,若换气频率增加,对室内空气品质的影响会越来越弱。The effect of passenger flow on CO2 concentration at the waiting room in railway station was studied on the basis of the passenger flow simulation.A positive correlation between gathered passenger number and CO2 concentration was observed with the method of numerical analysis.The research on CO2 concentration varying with both natural and mechanical ventilation at different air change rates and in different working days at the waiting room was carried out.The result shows that the air change rate of natural ventilation is from 0.4 to 0.8 times/h,which can not meet passenger＇s demands,until the mechanical air change rate reaches 2 times/h,and the effect on indoor air quality is less with the increase of the air charge.

关 键 词：客流量 新风量 换气频率 候车室 铁路客运站 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]