Open AccessReal-road Emission and Fuel Economy of Buses using Different Fuel
Author(s) -
Fengbin Wang,
Qihui Yu,
Xuefeng Wang,
Ji Ma
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/526/1/012132
Subject(s) - nox , diesel fuel , beijing , biodiesel , fuel efficiency , environmental science , china , automotive engineering , fuel oil , emission inventory , engineering , waste management , chemistry , air pollution , catalysis , geography , combustion , biochemistry , organic chemistry , archaeology
The real-road emission and the fuel economy of 2 China-VI buses and 2 China-III buses using different fuel are tested using portable emission measurement system. The results show that, compared with Beijing VI diesel buses, China VI buses using B5 biodiesel is 33.1% lower in CO specific emission, 15.6% higher in NOx specific emission, and 13.1% lower in PN specific emission. The CO emission factors of the four buses using B5 biodiesel decrease by 29.5% averagely compared with Beijing VI diesel buses, while the NOx emission factors increase by 12.7% and PN emission factors decrease by 9.1%; the CO2 emission factors increase by 11.3% and thus the fuel consumption per 100km increase by 11.51% which is calculated using carbon-balance method considering the impact by fuel density. The fuel economy difference is high. More research on the impact on fuel economy by fuel heat value or other physical and chemical parameters is necessary in the future.