Potential of Semi-Empirical Heat Transfer Models in Predicting ‎the Effects of Equivalence Ratio on Low Temperature Reaction ‎and High Temperature Reaction Heat Release of an HCCI Engine

Document Type : Research Paper


1 Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran‎

2 Department of Mechanical Engineering, Babol Noshirvani University of Technology, Shariati Av, Babol, 4714873113, Iran‎

3 Department of Biosystems Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran‎

4 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 (0D) 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 0D 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.


Main Subjects

Publisher’s Note Shahid Chamran University of Ahvaz remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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