The Simulation Study on the Combustion Characters of Cold Starting in a Common Rail Diesel Engine
The simulation results shows that pilot injection, intake preheating, main injection advance angle have a big impact on ignition performance of diesel engine. After using pilot injection, the average cylinder pressure and temperature, and the accumulated heat release increased, ultimately the fuel efficiency had been improved. By using the intake preheating, combustion efficiency had been improved for combustible mixture gas formed easily and combustion conditions significantly improved in cylinder. Besides, an appropriate main injection advance angle could improve the combustion of ignition delay period and increased the engine power and fuel efficiency.
Jinyue Yan, Charles C. Zhou, Rutang Liao and Jianwen Wang
Q. P. Zheng et al., "The Simulation Study on the Combustion Characters of Cold Starting in a Common Rail Diesel Engine", Advanced Materials Research, Vols. 516-517, pp. 70-73, 2012