TY - JOUR
T1 - Characteristics of real-world gaseous exhaust emissions from cars in heterogeneous traffic conditions
AU - Kuppili, Sudheer Kumar
AU - Alshetty, V. Dheeraj
AU - Diya, M.
AU - Nagendra, S. M. Shiva
AU - Ramadurai, Gitakrishnan
AU - Ramesh, A.
AU - Gulia, Sunil
AU - Namdeo, Anil
AU - Maji, Kamal
AU - Bell, Margaret
AU - Goodman, Paul
AU - Hayes, Enda
AU - Barnes, Jo
AU - Longhurst, James
AU - De Vito, Laura
N1 - We would like to extend our sincere thanks to the Ministry of Earth Sciences (MOES) for providing the necessary financial support for the Clean Air for Delhi Through Interventions, Mitigations, and Engagement (CADTIME) project. Also, the support given by colleagues at the Indian Institute of Technology -Delhi, to carry out the measurements is acknowledged with gratitude.
PY - 2021/6/1
Y1 - 2021/6/1
N2 - In this study, researchers have explored real-world driving conditions and developed emission factors for 58 passenger cars using on-board emission measurement technique while driving on five different routes in Delhi. The measured average emission factors of CO, HC, and NO were 3.99, 0.34, and 0.54 g/km for diesel vehicles, 7.26, 0.17, and 0.62 for petrol vehicles respectively. Road, traffic, vehicle type, and driving characteristics affect the quantity of emissions released. However, speed and acceleration significantly impact emission rates increasing with the increase in speed and acceleration. Also, emissions were minimal at 40–60 kmph and −0.5–0.5 m/s2. The estimated city-wide CO, HC, and NO emissions were 60.8, 4.8, and 9.72tonnes/day. These results demonstrate the importance of monitoring the real-world exhaust emissions given the substantial difference between test cycle measurements used for compliance testing of new vehicles.
AB - In this study, researchers have explored real-world driving conditions and developed emission factors for 58 passenger cars using on-board emission measurement technique while driving on five different routes in Delhi. The measured average emission factors of CO, HC, and NO were 3.99, 0.34, and 0.54 g/km for diesel vehicles, 7.26, 0.17, and 0.62 for petrol vehicles respectively. Road, traffic, vehicle type, and driving characteristics affect the quantity of emissions released. However, speed and acceleration significantly impact emission rates increasing with the increase in speed and acceleration. Also, emissions were minimal at 40–60 kmph and −0.5–0.5 m/s2. The estimated city-wide CO, HC, and NO emissions were 60.8, 4.8, and 9.72tonnes/day. These results demonstrate the importance of monitoring the real-world exhaust emissions given the substantial difference between test cycle measurements used for compliance testing of new vehicles.
KW - Real-world exhaust emissions
KW - Portable emission monitoring system (PEMS)
KW - Passenger cars
KW - Emission factors
KW - Emission rate
UR - https://www.scopus.com/pages/publications/85104918758
U2 - 10.1016/j.trd.2021.102855
DO - 10.1016/j.trd.2021.102855
M3 - Article
AN - SCOPUS:85104918758
SN - 1361-9209
VL - 95
JO - Transportation Research, Part D: Transport and Environment
JF - Transportation Research, Part D: Transport and Environment
M1 - 102855
ER -
