TY - GEN
T1 - Evaluation of time-resolved nano-particle and THC emissions of wall-guided GDI engine
AU - Choi, Kwanhee
AU - Kim, Juwon
AU - Ko, Ahyun
AU - Myung, Cha Lee
AU - Park, Simsoo
AU - Lee, Youngjae
AU - Park, Jongil
AU - Han, Seung Kook
PY - 2011/12/1
Y1 - 2011/12/1
N2 - A nano-sized PM and THC emission characteristics were investigated according to the fuel injection strategy such as a pressure and timing in the GDI engine. On the part-load condition, the particulate emissions exhibited a strong sensitivity to the injection timing. The fuel injection pressure also had a great association with the nano-particles and THC. A size of PM exhausted from the GDI engine located near 10nm on the part-load. In contrast, accumulation mode particles within 60 - 80nm mainly exhausted during the cold transient start phase. Increment of fuel injection pressure positively affected on the nano-particle and THC emissions during the start of the engine, as well.
AB - A nano-sized PM and THC emission characteristics were investigated according to the fuel injection strategy such as a pressure and timing in the GDI engine. On the part-load condition, the particulate emissions exhibited a strong sensitivity to the injection timing. The fuel injection pressure also had a great association with the nano-particles and THC. A size of PM exhausted from the GDI engine located near 10nm on the part-load. In contrast, accumulation mode particles within 60 - 80nm mainly exhausted during the cold transient start phase. Increment of fuel injection pressure positively affected on the nano-particle and THC emissions during the start of the engine, as well.
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U2 - 10.4271/2011-28-0022
DO - 10.4271/2011-28-0022
M3 - Conference contribution
BT - SAE Technical Papers
ER -