Title :
Experiment Study of Stratified Combustion at Different Boost Pressure
Author :
Bai Shuzhan ; Li Guoxiang ; Zhao Hua ; Williams, D.J.R.
Author_Institution :
Sch. of Energy & Power Eng., Shandong Univ., Jinan
Abstract :
A study was undertaken to examine the effect of charge stratification on combustion on a optical engine in this paper. Planar laser induced fluorescence was employed to view charge stratification, together with on-line combustion analysis. Using intake manifold pressure as a means to govern the dilution ratio of air to charge in the cylinder, and therefore the level of stratification, it has been found that as the global AFR of the combustion increased, the stratified charge structure could maintain reasonable combustion stability in lean condition. The reduction in AFR in the vicinity of the spark event ensured rapid kernel development, the overall bulk combustion duration benefited form the richer mixture and the reduction in propagation length required in order to consume the vast majority of fuel.
Keywords :
combustion; intake systems (machines); internal combustion engines; manifolds; boost pressure; combustion stability; intake manifold pressure; lean condition; online combustion analysis; optical engine; planar laser induced fluorescence; stratified charge structure; stratified combustion; Combustion; Diesel engines; Engine cylinders; Fires; Fuels; Optical design; Pistons; Power engineering and energy; Sparks; Valves;
Conference_Titel :
Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-2486-3
Electronic_ISBN :
978-1-4244-2487-0
DOI :
10.1109/APPEEC.2009.4918350