TY - JOUR
T1 - Air pollutant emission factors from new and in-use motorcycles
AU - Tsai, Jiun Horng
AU - Hsu, Yih Chyun
AU - Weng, Hung Cheng
AU - Lin, Wen Yinn
AU - Jeng, Fu Tien
PY - 2000/1/1
Y1 - 2000/1/1
N2 - The emissions of carbon monoxide (CO), nitrogen oxides (NO(x)) and total hydrocarbon (THC) from 7 new and 12 in-use motorcycles with or without the catalyst were evaluated by testing these vehicles on a dynamometer. Also the concentrations of volatile organic compounds (VOCs) in five driving patterns, including idle, acceleration, 30 km h-1 cruise, 50 km h-1 cruise, and deceleration, were monitored. Experimental results indicate that the emissions of CO and THC from in-use motorcycles are significantly higher than new ones, but not for NO(x), and the emissions of THC from 2-stroke motorcycles are much higher than 4-stroke ones. The emissions of VOCs from in-use motorcycles are higher than new motorcycles for all five driving patterns, and those from 2-stroke engines are higher than 4-stroke motorcycles. Emission of VOCs in the modes of deceleration and idle accounts for the most mass emitted during the test driving cycle. (C) 2000 Elsevier Science Ltd.
AB - The emissions of carbon monoxide (CO), nitrogen oxides (NO(x)) and total hydrocarbon (THC) from 7 new and 12 in-use motorcycles with or without the catalyst were evaluated by testing these vehicles on a dynamometer. Also the concentrations of volatile organic compounds (VOCs) in five driving patterns, including idle, acceleration, 30 km h-1 cruise, 50 km h-1 cruise, and deceleration, were monitored. Experimental results indicate that the emissions of CO and THC from in-use motorcycles are significantly higher than new ones, but not for NO(x), and the emissions of THC from 2-stroke motorcycles are much higher than 4-stroke ones. The emissions of VOCs from in-use motorcycles are higher than new motorcycles for all five driving patterns, and those from 2-stroke engines are higher than 4-stroke motorcycles. Emission of VOCs in the modes of deceleration and idle accounts for the most mass emitted during the test driving cycle. (C) 2000 Elsevier Science Ltd.
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U2 - 10.1016/S1352-2310(00)00270-3
DO - 10.1016/S1352-2310(00)00270-3
M3 - Article
AN - SCOPUS:0034258063
VL - 34
SP - 4747
EP - 4754
JO - Atmospheric Environment
JF - Atmospheric Environment
SN - 1352-2310
IS - 28
ER -