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

• Published in: Journal of applied and computational mechanics Vol. 9; no. 1; pp. 45 - 57
• Main Authors: Masoud Rabeti, Omid Jahanian, Ali Akbar Ranjbar, Seyed Mohammad Safieddin Ardebili, Hamit Solmaz
• Format: Journal Article
• Language: English
• Published: Shahid Chamran University of Ahvaz 01.01.2023
• Subjects: equivalence ratio; hcci combustion; high temperature reaction heat release; low temperature reaction ‎heat release; semi-empirical heat transfer models; zero-dimensional single-zone model
• ISSN: 2383-4536
• DOI: 10.22055/jacm.2020.35398.2649

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.