THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Chunhui Liu

,

Shaojie Wu

,

Shuo Pang

EFFECTS OF FIVE DIFFERENT PARAMETERS ON BIODIESEL HCCI COMBUSTION IN FREE-PISTON ENGINE GENERATOR

ABSTRACT
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.
KEYWORDS
FPEG, skeletal mechanism, biodiesel, HCCI
PAPER SUBMITTED: 2021-05-11
PAPER REVISED: 2021-07-10
PAPER ACCEPTED: 2021-07-13
PUBLISHED ONLINE: 2021-10-17
DOI REFERENCE: https://doi.org/10.2298/TSCI2106197L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 6, PAGES [4197 - 4207]
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Effects of five different parameters on biodiesel HCCI combustion in free-piston engine generator

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence