Masoud Rabeti - Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran‎
Omid Jahanian - Department of Mechanical Engineering, Babol Noshirvani University of Technology, Shariati Av, Babol, ۴۷۱۴۸۷۳۱۱۳, Iran‎
Ali Akbar Ranjbar - Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran‎
Seyed Mohammad Safieddin Ardebili - Department of Biosystems Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran‎
Hamit Solmaz - Automotive Engineering Department, Faculty of Technology, Gazi University, Ankara, Turkey‎

In this paper, the influence of equivalence ratio on the low-temperature reaction heat release (LTR-HR) and high-temperature reaction heat release (HTR-HR) of homogeneous charge compression ignition engine has been experimentally and numerically examined. The numerical study was performed using zero-dimensional (۰D) single-zone model by considering the chemical kinetic of fuel combustion. Annand, Woschni, Hohenberg, Chang (Assanis), and Hensel semi-empirical heat transfer models were employed in the ۰D single-zone simulations. In this study, the in-cylinder pressure, rate of heat release, LTR-HR and HTR-HR were investigated. The Hensel heat transfer model was the only model that predicted the combustion in all of the operating conditions. The Hohenberg model properly recognized the effects of equivalence ratio changes on the HTR-HR.

HCCI Combustion, Zero-Dimensional Single-Zone Model, Semi-Empirical Heat Transfer Models, Low Temperature Reaction ‎Heat Release, High Temperature Reaction Heat Release, Equivalence Ratio