Title :
Numerical Study of Effect of Compression Ratio on Controlled Auto-Ignition Combustion
Author :
Mingfei Xiao ; Jiansheng Lin ; Yusen Jin
Author_Institution :
State Key Lab. of Engines, Tianjin Univ., Tianjin, China
Abstract :
This study analyzes Controlled Auto-Ignition (CAI) combustion with numerical model which was mainly built by AVL-BOOST coupled with CHEMKIN. The prototype is a single-cylinder engine with Variable Compression Ratio (VCR). By utilizing in-cylinder exhaust gas recirculation (EGR) strategy for combustion control, effect of compression ratio (CR) on engine operating range, gas exchange process and combustion process was studied. A prediction of the effect was obtained and the reason was discussed in the paper. The conclusions of this work will be a guide for later engine experiments.
Keywords :
compressibility; engine cylinders; exhaust systems; ignition; internal combustion engines; numerical analysis; AVL-BOOST; CAI combustion; CHEMKIN; EGR strategy; VCR; combustion control; combustion process; controlled auto-ignition combustion; engine operating range; gas exchange process; in-cylinder exhaust gas recirculation; numerical model; single-cylinder engine; variable compression ratio; Combustion; Computer aided instruction; Fuels; Ignition; Timing; Valves; compression ratio; controlled auto-ignition combustion; effect; exhaust gas recirculation; numerical simulation;
Conference_Titel :
Computational and Information Sciences (ICCIS), 2013 Fifth International Conference on
Conference_Location :
Shiyang
DOI :
10.1109/ICCIS.2013.306
