Experimental Study of the TVOC Distribution in a Car Cabin

IF 4.3 2区 环境科学与生态学 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Indoor air Pub Date : 2023-08-09 DOI:10.3390/air1030014
Nadir Hafs, Mokhtar Djeddou, A. Benabed, G. Fokoua, A. Mehel
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Abstract

The vehicle in-cabin is subject to several types of pollutants infiltrating from the outdoors or emitted directly inside it, such as Volatile Organic Compounds (VOCs). The concentration of TVOC (total volatile organic compounds) is the result of the emission from different equipment surfaces that compose the car cabin. In the present study, the experimental characterization of TVOC emission from the interior surfaces of a car cabin is discussed by considering the influence of two parameters: the temperature and ventilation modes. A measurement location grid was used to measure TVOC’s emissions from 267 points on all surfaces of the car’s interior equipment. Three different temperatures and two ventilation modes (recirculation and outdoor air) were investigated. The results indicate that the concentration of TVOC increases with the temperature inside the cabin with a contribution that varies with the type of cabin equipment including the dashboard, center console, seats, and carpets. On the other hand, the concentration distributions of TVOC showed relative differences of 10–13% and 2–5% for surface and volumetric measurements, respectively. This implies no preferential positioning of the in-cabin probe for TVOC volumetric concentration measurements. In addition, the recirculation ventilation mode results in a higher accumulation of TVOC; therefore, higher concentrations are measured.
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汽车舱内挥发性有机化合物分布的实验研究
车内的车辆会受到从室外渗透或直接在车内排放的几种污染物的影响,例如挥发性有机化合物(VOCs)。TVOC(总挥发性有机化合物)的浓度是由组成车厢的不同设备表面排放的结果。在本研究中,通过考虑温度和通风方式两个参数的影响,讨论了汽车舱室内表面TVOC排放的实验表征。测量位置网格用于测量汽车内部设备所有表面上267个点的TVOC排放。研究了三种不同的温度和两种通风模式(再循环和室外空气)。结果表明,TVOC浓度随客舱内温度升高而升高,且随客舱设备类型(仪表盘、中控台、座椅和地毯)的不同而变化。另一方面,在表面和体积测量中,TVOC浓度分布的相对差异分别为10-13%和2-5%。这意味着机舱内探头对于TVOC体积浓度测量没有优先定位。此外,再循环通风方式导致TVOC积累较高;因此,测量到更高的浓度。
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来源期刊
Indoor air
Indoor air 环境科学-工程:环境
CiteScore
10.80
自引率
10.30%
发文量
175
审稿时长
3 months
期刊介绍: The quality of the environment within buildings is a topic of major importance for public health. Indoor Air provides a location for reporting original research results in the broad area defined by the indoor environment of non-industrial buildings. An international journal with multidisciplinary content, Indoor Air publishes papers reflecting the broad categories of interest in this field: health effects; thermal comfort; monitoring and modelling; source characterization; ventilation and other environmental control techniques. The research results present the basic information to allow designers, building owners, and operators to provide a healthy and comfortable environment for building occupants, as well as giving medical practitioners information on how to deal with illnesses related to the indoor environment.
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