Evaluation of heat transfer correlations for HCCI engine modeling |
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| Authors: | H.S. Soyhan H. Yasar H. Walmsley B. Head G.T. Kalghatgi C. Sorusbay |
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| Affiliation: | 1. Shell Global Solutions, Technology Centre Thornton, CH1 3SH Chester, United Kingdom;2. Department of Mechanical Engineering, Engineering Faculty, University of Sakarya, Esetepe Campus, 54187 Esentepe-Sakarya, Turkey;3. Faculty of Mechanical Engineering, Technical University of Istanbul, Turkey;1. Gazi University, Atatürk Vocational High School, Department of Automotive Technology, 06760 Ankara, Turkey;2. Gazi University, Faculty of Technology, Department of Automotive Engineering, 06500 Ankara, Turkey;3. Mehmet Akif Ersoy University, Vocational High School of Technical Sciences, Department of Automotive Technology, 15100 Burdur, Turkey;4. Hitit University, Vocational High School, Department of Automotive Technology, 19169 Çorum, Turkey;5. Michigan Technological University, Department of Mechanical Engineering-Engineering Mechanics, 49931 Houghton, USA;1. Gazi University, Technical Sciences Vocational High School, Ankara, Turkey;2. Burdur Mehmet Akif Ersoy University, Technical Sciences Vocational High School, Burdur, Turkey;3. Gazi University, Faculty of Technology, Department of Automotive Engineering, Ankara, Turkey;1. Department of Biosystems Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran;2. Automotive Engineering Department, Faculty of Technology, Gazi University, Ankara, Turkey;3. Gazi University, Technical Sciences Vocational High School, Ostim, Ankara, Turkey;1. Computational Engineering and Science Research Centre, University of Southern Queensland, Toowooomba, 4350 QLD, Australia;2. National Centre for Engineering in Agriculture, University of Southern Queensland, Toowooomba, 4350 QLD, Australia;3. Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;1. Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, One Cyclotron Road, 90-2138, Berkeley, CA 94720, USA;2. Grupo de Ciencia y Tecnología del Gas y Uso Racional de la Energía, University of Antioquia, Calle 67 No., 63-108 Medellín, Colombia |
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| Abstract: | Combustion in HCCI engines is a controlled auto-ignition of well-mixed fuel, air and residual gas. The thermal conditions of the combustion chamber are governed by chemical kinetics strongly coupled with heat transfer from the hot gas to the walls. The heat losses have a critical effect on HCCI ignition timing and burning rate, so it is essential to understand heat transfer process in the combustion chamber in the modeling of HCCI engines. In the present paper, a comparative analysis is performed to investigate the performance of well-known heat transfer correlations in an HCCI engine. The results from the existing correlations are compared with the experimental results obtained in a single-cylinder engine. Significant differences are observed between the heat transfer results obtained by using Woschni, Assanis and Hohenberg correlations. |
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