Open AccessStudy the impact of fuel and exhaust gas recirculation on HCCI combustion
Author(s) -
Svetoslav Mihalkov,
Plamen Punov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/977/1/012028
Subject(s) - homogeneous charge compression ignition , combustion , exhaust gas recirculation , inlet manifold , methane , automotive engineering , materials science , ignition system , heptane , exhaust gas , compressed natural gas , internal combustion engine , environmental science , waste management , chemistry , thermodynamics , combustion chamber , engineering , physics , organic chemistry
This paper presents a numerical study of fuel/fuel blends impact on rate of heat release at different exhaust gas recirculation rate in case of homogeneous charge compression ignition (HCCI) combustion. A direct injection engine is used for simulation which also allows mixture preparation in intake manifold leading to premixed combustion. The numerical analysis was conducted by means of an engine model developed in advanced simulation software AVL Boost. The combustion model is based on skeletal reaction mechanism of C7H16(n-heptane) that uses 26 species and 66 reactions. Additionally, to the main fuel, methane and hydrogen was added. Thus, the influence of fuel blends was evaluated at EGR rate within the range of 0% to 40%.