摘要
目的为确定合理的室内客运站待发区的通风量,使其在该风量下的CO质量浓度符合国家卫生标准.方法选取4种常用的稀释质量浓度法公式,各公式中相同的变量采用统一数值,其他数值视室内客运站实际情况而定,得到4种不同的污染源强度,然后在此4种工况下对室内客运站待发区CO质量浓度场进行数值模拟,并对模拟结果进行比较和分析.结果分别得到28 000 m3/h、30 000 m3/h、42 000 m3/h、45 000 m3/h 4种不同的通风量,在其4种通风量下的室内客运站待发区的CO质量浓度分布不同.结论室内客运站待发区的通风量由污染源强度确定,通风量过小影响室内客运站内CO的排出,通风量过大则浪费能源,推导的理论公式及确定的污染源强度是合理可行的.
This paper is to fix rational ventilation rate of the gird in the interior passenger to make sure the CO mass concentration complying with the national hygiene standards. There are four formulas of mass concentration dilution, and in these formulas, same variables with same values were used, and the others were decided with the actual situation of interior passenger, and four different pollution intensities were attained. The CO emission concentrations were numerical simulated by FLUENT under the four conditions to comparison and analysis of the four simulation results. There are four kinds of ventilation rates by calculating, they are 28 000 m3/h,30 000 m3/h,42 000 m3/h.45 000 m3/h, and under the four kinds of ventilation rates the CO concentration distributions are different. The result is that the ventilation rate of the interior passenger depended on the pollution intensity, The small ventilation rate will impact the exhausting of CO in the interior passenger and the large ventilation rate will waste energy, so the theoretical formulas we used and the pollution intensity we chose are feasible.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
北大核心
2012年第1期135-139,共5页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家自然科学基金项目(70303016)
辽宁省博士启动基金项目(20101088)
沈阳市科技局基金项目(F11-264-1-17)
关键词
车库
室内客运站
通风量
数值模拟
污染源强度
garage
interior passenger
ventilation rate
numerical simulation
pollution intensity.
