车内污染物的测定和数值模拟研究  

A Study on the Measurement and Numerical Simulation of In-vehicle Air Pollutants

作　　者：尤可为[1,2] 葛蕴珊[3] 王务林[1] 舒歌群[2] 郑贺悦[1] 郭家强[1] 

机构地区：[1]中国汽车技术研究中心,天津300162 [2]天津大学,内燃机燃烧学国家重点实验室,天津300072 [3]北京理工大学机械与车辆工程学院,北京100081

出　　处：《汽车工程》2010年第8期727-730,共4页Automotive Engineering

摘　　要：采用二次热解吸-毛细管气相色渺质谱联用法（TD—GC／MS）对64辆新轿车进行测试，共定性检出206种挥发性有机物，其中甲苯和对间二甲苯的检出率达100％、邻二甲苯的检出率达96．9％。定量分析结果表明，在64辆样本车中，浓度最高的挥发性有机物是甲苯和对间二甲苯。文中还采用FLUENT软件对车内流场的污染物扩散过程进行空间和时间分布特征的研究。64 new cars are tested with two-stage thermal desorption-capillary gas chromatography / mass spectrometry, and 206 kinds of volatile organic compounds （VOCs） are qualitatively detected altogether, including toluene and m,p-xylene both with a detection rate of 100% and o-xylene with a detection rate of 96.9%. The resuits of quantitative analysis show that VOCs with the highest concentration are toluene and m, p-xylene. Both spatial and temporal distribution characteristics of the pollutant diffusion process in the internal flow field of vehicle are also studied in the paper by using software FLUENT.

关 键 词：车内污染物 挥发性有机物 数值模拟 

分 类 号：U467.4[机械工程—车辆工程]