Effects of Ignition Timing on Combustion and Noncompulsory Emission of Methanol Engine

GONG Changming1; GONG Baoli2; PENG Legao3; SUN Jingzhen2; LI Zhaohui4; QU Xiang4; LIU Fenghua1

doi:10.3969/j.issn.1001-2222.2017.06.005

Vehicle Engine ›› 2017, Vol. 0 ›› Issue (6) : 25-29. DOI: 10.3969/j.issn.1001-2222.2017.06.005

Effects of Ignition Timing on Combustion and Noncompulsory Emission of Methanol Engine

GONG Changming¹，GONG Baoli²,PENG Legao³，SUN Jingzhen²，LI Zhaohui⁴，QU Xiang⁴，LIU Fenghua¹

Author information +

History +

Abstract

For the cold start problem of methanol engine, one 1130 singlecylinder diesel engine was retrofitted to direct injection spark ignition methanol engine and the influences of ignition timing on methanol combustion and noncompulsory emission during cold start at 266 K were researched by simulating the oxidation reaction mechanism of methanol with AVLFire software and preheating the intake to 283 K with the electric heater plug. The simulation results show that advancing the ignition timing can improve the combustion and reduce the unburned methanol emission. When the ignition timing advances from 8°CA BTDC to 11°CA BTDC, the unburned methanol emission decreases remarkably. Moreover, formaldehyde oxidizes rapidly and its emission decreases obviously when the ignition timing is 17°CA BTDC and the incylinder peak temperature is beyond 1 300 K.

Key words

cold start / direct injection methanol engine / noncompulsory emission / combustion / ignition timing

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

GONG Changming1，GONG Baoli2,PENG Legao3，SUN Jingzhen2，LI Zhaohui4，QU Xiang4，LIU Fenghua1. Effects of Ignition Timing on Combustion and Noncompulsory Emission of Methanol Engine[J]. Vehicle Engine. 2017, 0(6): 25-29 https://doi.org/10.3969/j.issn.1001-2222.2017.06.005