Deterioration of gasoline vehicle emissions and effectiveness of tune-up for high-polluted vehicles

Hung Lung Chiang; Jiun Horng Tsai; Yung Chen Yao; Wen Yuan Ho

doi:10.1016/j.trd.2007.07.004

Deterioration of gasoline vehicle emissions and effectiveness of tune-up for high-polluted vehicles

Hung Lung Chiang, Jiun Horng Tsai, Yung Chen Yao, Wen Yuan Ho

Department of Environmental Engineering

Research output: Contribution to journal › Article

24 Citations (Scopus)

Abstract

This study investigates the emissions using a chassis dynamometer for three types of passenger vehicles, including new vehicles, in-use vehicles, and highly polluted vehicles, based on the US federal test procedure (FTP-75). In-use high emitters, emit about 5-12 times more CO, NO_x and HC. Emission tests before and after repair and maintenance for high emitters indicated that tune-ups fail to reduce emissions because of deterioration of the three-way catalyst over time.

Original language	English
Pages (from-to)	47-53
Number of pages	7
Journal	Transportation Research Part D: Transport and Environment
Volume	13
Issue number	1
DOIs	https://doi.org/10.1016/j.trd.2007.07.004
Publication status	Published - 2008 Jan

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Transportation
Environmental Science(all)

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abstract = "This study investigates the emissions using a chassis dynamometer for three types of passenger vehicles, including new vehicles, in-use vehicles, and highly polluted vehicles, based on the US federal test procedure (FTP-75). In-use high emitters, emit about 5-12 times more CO, NOx and HC. Emission tests before and after repair and maintenance for high emitters indicated that tune-ups fail to reduce emissions because of deterioration of the three-way catalyst over time.",

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