Title: Investigation of performance of 0-D internal combustion engine simulation codes based on detailed and reduced chemical kinetic mechanisms

Authors: Gokhan Coskun; Usame Demir; Nadir Yilmaz; Hakan S. Soyhan

Addresses: Department of Mechanical Engineering, University of Sakarya, Serdivan, Sakarya, 54187, Turkey ' Department of Mechanical Engineering, University of Sakarya, Serdivan, Sakarya, 54187, Turkey ' Department of Mechanical Engineering, New Mexico Institute Mining and Technology, 801 Leroy Pl., Socorro, NM 87801-4796, USA ' Department of Mechanical Engineering, University of Sakarya, Serdivan, Sakarya, 54187, Turkey; TEAM-SAN Co., Technological Development Regions, University of Sakarya, Serdivan, 54187, Sakarya, Turkey

Abstract: In this study, combustion performance of two 0-D engine simulation codes, Chemkin-Pro and SRM Suite, was examined in a homogenous charged compression ignition (HCCI) engine and comparisons were made against the experimental data, which was based on combustion of TRF-70 (70% toluene and 30% n-heptane in vol. basis). Reduced and semi-detailed chemical kinetic mechanisms of TRF-70 were used in both codes for performance evaluations in terms of pressure, heat release rate and exhaust gas emissions (CO, CO₂ and O₂). OH and H₂O₂ emissions, which were difficult to obtain experimentally, were compared computationally among codes using both semi-detailed and reduced mechanisms. Both codes had advantages over the other; stochastic reactor model (SRM) resulted in better results than Chemkin-Pro in terms of pressure and heat release rate when compared to experimental data, while Chemkin-Pro was advantageous owing to its shorter CPU time with acceptable proximity to experimental data.

Keywords: HCCI engines; homogenous charged compression ignition; combustion performance; SRM; stochastic reactor model; Chemkin; 0-D engine simulation codes; chemical kinetics; pressure; heat release rate; exhaust gas emissions; vehicle emissions; modelling.

DOI: 10.1504/IJVD.2016.078796

International Journal of Vehicle Design, 2016 Vol.71 No.1/2/3/4, pp.377 - 388

Accepted: 03 Mar 2016
Published online: 02 Sep 2016 *

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