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Measurements of major VOCs released into the closed cabin environment of different automobiles under various engine and ventilation scenarios

Title
Measurements of major VOCs released into the closed cabin environment of different automobiles under various engine and ventilation scenarios
Author
김기현
Keywords
VOC; Static vehicle; Engine running mode; Cabin air; Internal air circulation
Issue Date
2016-08
Publisher
ELSEVIER SCI LTD
Citation
ENVIRONMENTAL POLLUTION, v. 215, Page. 340-346
Abstract
Volatile organic compounds (VOCs) in automobile cabins were measured quantitatively to describe their emission characteristics in relation to various idling scenarios using three used automobiles (compact, intermediate sedan, and large sedan) under three different idling conditions ([1] cold engine off and ventilation off, [2] exterior air ventilation with idling warm engine, and [3] internal air recirculation with idling warm engine). The ambient air outside the vehicle was also analyzed as a reference. A total of 24 VOCs (with six functional groups) were selected as target compounds. Accordingly, the concentration of 24 VOC quantified as key target compounds averaged 4.58 +/- 3.62 ppb (range: 0.05 (isobutyl alcohol) similar to 38.2 ppb (formaldehyde)). Moreover, if their concentrations are compared between different automobile operational modes: the 'idling engine' levels (5.24 +/- 4.07) was 1.3-5 times higher than the 'engine off' levels (4.09 +/- 3.23) across all 3 automobile classes. In summary, automobile in-cabin VOC emissions are highly contingent on changes in engine and ventilation modes. (C) 2016 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0269749116304213?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/76511
ISSN
0269-7491; 1873-6424
DOI
10.1016/j.envpol.2016.05.033
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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