TY - JOUR
TI - Effects of five different parameters on biodiesel HCCI combustion in free-piston engine generator
AU - Liu Chunhui
AU - Wu Shaojie
AU - Pang Shuo
JN - Thermal Science
PY - 2021
VL - 25
IS - 6
SP - 4197
EP - 4207
PT - Article
AB - A coupled 3-D CFD and detailed chemical kinetics model of free-piston engine  generator (FPEG) was adopted to investigate the effects of initial  parameters on homogeneous charge compression ignition (HCCI) combustion and  emission. Biodiesel with 115 species skeletal mechanism was selected as  fuel. Five different parameters, namely the initial pressure, the initial  temperature, the working frequency, the compression ratio and the fuel  equivalence ratio, were selected to analyze their influences in the HCCI  combustion simulation of FPEG. The simulation results showed that the  change of the five parameters had visible impact on the heat release rate of  HCCI combustion, which caused the in-cylinder temperature and pressure to  change, and also caused the emission content of NOx and SOOT to change  obviously.