Dependence of pollutant emission factors and fuel consumption on driving conditions and gasoline vehicle types

Liang Qu; Weiwei Wang; Mengliang Li; Xiaohong Xu; Zongbo Shi; Hongjun Mao; Taosheng Jin

doi:10.1016/j.apr.2020.10.016

Dependence of pollutant emission factors and fuel consumption on driving conditions and gasoline vehicle types

Liang Qu, Weiwei Wang, Mengliang Li, Xiaohong Xu, Zongbo Shi, Hongjun Mao, Taosheng Jin^*

^*Corresponding author for this work

Earth and Environmental Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

Vehicle types, technologies, and driving conditions are key factors affecting emission factors and fuel consumption. In this study, we measured the hydrocarbon (HC), carbon monoxide (CO), and nitrogen oxide (NO_x) emission factors, and fuel consumption of vehicles with a (1) carburetor (CVs), (2) multipoint injection technology and three-way catalyst (MTVs), and (3) multipoint injection technology, three-way catalyst, and exhaust gas recirculation device (MTEVs) under real driving conditions using an OBS-2200 portable emission measurement system. The results showed that both the distance- and fuel-based HC, CO, and NOx emission factors of CVs were 2.7–6.6 times higher than those of MTVs and MTEVs. The average incomplete fuel conversion rates (IFCRs) of CVs were 3.8 and 4.4 times higher than those of MTVs and MTEVs, respectively. The molar ratios of the CO/HC pollutants were 7.6, 5.6, and 2.8 for CVs, MTVs, and MTEVs. Furthermore, the correlation between the vehicle-specific power and fuel consumption rate was significant. The exhaust gas recirculation (EGR) system could improve the fuel combustion efficiency and reduce vehicle emissions, particularly under high-speed and acceleration conditions.

Original language	English
Journal	Atmospheric Pollution Research
DOIs	https://doi.org/10.1016/j.apr.2020.10.016
Publication status	Accepted/In press - 2020

Bibliographical note

Funding Information:
This study was funded by the National Key Research and Development Program of China ( 2017YFC0212100 ), the National Natural Science Foundation of China ( 21477057 ), National Engineering Laboratory, China for Mobile Source Emission Control Technology ( NELMS2019A09 ) and the International Clean Energy Talent Program 2017 of the China Scholarship Council ( 201702660024 ).

Publisher Copyright:
© 2020 Turkish National Committee for Air Pollution Research and Control

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

Correlation analysis
Driving conditions
Fuel consumption rate
Fuel-CO conversion rate
Vehicle emission

ASJC Scopus subject areas

Waste Management and Disposal
Pollution
Atmospheric Science

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10.1016/j.apr.2020.10.016

Cite this

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title = "Dependence of pollutant emission factors and fuel consumption on driving conditions and gasoline vehicle types",

abstract = "Vehicle types, technologies, and driving conditions are key factors affecting emission factors and fuel consumption. In this study, we measured the hydrocarbon (HC), carbon monoxide (CO), and nitrogen oxide (NOx) emission factors, and fuel consumption of vehicles with a (1) carburetor (CVs), (2) multipoint injection technology and three-way catalyst (MTVs), and (3) multipoint injection technology, three-way catalyst, and exhaust gas recirculation device (MTEVs) under real driving conditions using an OBS-2200 portable emission measurement system. The results showed that both the distance- and fuel-based HC, CO, and NOx emission factors of CVs were 2.7–6.6 times higher than those of MTVs and MTEVs. The average incomplete fuel conversion rates (IFCRs) of CVs were 3.8 and 4.4 times higher than those of MTVs and MTEVs, respectively. The molar ratios of the CO/HC pollutants were 7.6, 5.6, and 2.8 for CVs, MTVs, and MTEVs. Furthermore, the correlation between the vehicle-specific power and fuel consumption rate was significant. The exhaust gas recirculation (EGR) system could improve the fuel combustion efficiency and reduce vehicle emissions, particularly under high-speed and acceleration conditions.",

keywords = "Correlation analysis, Driving conditions, Fuel consumption rate, Fuel-CO conversion rate, Vehicle emission",

author = "Liang Qu and Weiwei Wang and Mengliang Li and Xiaohong Xu and Zongbo Shi and Hongjun Mao and Taosheng Jin",

note = "Funding Information: This study was funded by the National Key Research and Development Program of China ( 2017YFC0212100 ), the National Natural Science Foundation of China ( 21477057 ), National Engineering Laboratory, China for Mobile Source Emission Control Technology ( NELMS2019A09 ) and the International Clean Energy Talent Program 2017 of the China Scholarship Council ( 201702660024 ). Publisher Copyright: {\textcopyright} 2020 Turkish National Committee for Air Pollution Research and Control Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2020",

doi = "10.1016/j.apr.2020.10.016",

language = "English",

journal = "Atmospheric Pollution Research",

issn = "1309-1042",

publisher = "Dokuz Eylul Universitesi * Department of Environmental Engineering",

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AU - Qu, Liang

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AU - Li, Mengliang

AU - Xu, Xiaohong

AU - Shi, Zongbo

AU - Mao, Hongjun

AU - Jin, Taosheng

N1 - Funding Information: This study was funded by the National Key Research and Development Program of China ( 2017YFC0212100 ), the National Natural Science Foundation of China ( 21477057 ), National Engineering Laboratory, China for Mobile Source Emission Control Technology ( NELMS2019A09 ) and the International Clean Energy Talent Program 2017 of the China Scholarship Council ( 201702660024 ). Publisher Copyright: © 2020 Turkish National Committee for Air Pollution Research and Control Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020

Y1 - 2020

N2 - Vehicle types, technologies, and driving conditions are key factors affecting emission factors and fuel consumption. In this study, we measured the hydrocarbon (HC), carbon monoxide (CO), and nitrogen oxide (NOx) emission factors, and fuel consumption of vehicles with a (1) carburetor (CVs), (2) multipoint injection technology and three-way catalyst (MTVs), and (3) multipoint injection technology, three-way catalyst, and exhaust gas recirculation device (MTEVs) under real driving conditions using an OBS-2200 portable emission measurement system. The results showed that both the distance- and fuel-based HC, CO, and NOx emission factors of CVs were 2.7–6.6 times higher than those of MTVs and MTEVs. The average incomplete fuel conversion rates (IFCRs) of CVs were 3.8 and 4.4 times higher than those of MTVs and MTEVs, respectively. The molar ratios of the CO/HC pollutants were 7.6, 5.6, and 2.8 for CVs, MTVs, and MTEVs. Furthermore, the correlation between the vehicle-specific power and fuel consumption rate was significant. The exhaust gas recirculation (EGR) system could improve the fuel combustion efficiency and reduce vehicle emissions, particularly under high-speed and acceleration conditions.

AB - Vehicle types, technologies, and driving conditions are key factors affecting emission factors and fuel consumption. In this study, we measured the hydrocarbon (HC), carbon monoxide (CO), and nitrogen oxide (NOx) emission factors, and fuel consumption of vehicles with a (1) carburetor (CVs), (2) multipoint injection technology and three-way catalyst (MTVs), and (3) multipoint injection technology, three-way catalyst, and exhaust gas recirculation device (MTEVs) under real driving conditions using an OBS-2200 portable emission measurement system. The results showed that both the distance- and fuel-based HC, CO, and NOx emission factors of CVs were 2.7–6.6 times higher than those of MTVs and MTEVs. The average incomplete fuel conversion rates (IFCRs) of CVs were 3.8 and 4.4 times higher than those of MTVs and MTEVs, respectively. The molar ratios of the CO/HC pollutants were 7.6, 5.6, and 2.8 for CVs, MTVs, and MTEVs. Furthermore, the correlation between the vehicle-specific power and fuel consumption rate was significant. The exhaust gas recirculation (EGR) system could improve the fuel combustion efficiency and reduce vehicle emissions, particularly under high-speed and acceleration conditions.

KW - Correlation analysis

KW - Driving conditions

KW - Fuel consumption rate

KW - Fuel-CO conversion rate

KW - Vehicle emission

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ER -

Dependence of pollutant emission factors and fuel consumption on driving conditions and gasoline vehicle types

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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