Detailed chemical kinetics was used in an engine CFD code to study the combustion process in HCCI engines. The CHEMKIN code was implemented in KIVA such that the chemistry and flow solutions were coupled. The reaction mechanism consists of hundreds of reactions and species and is derived from fundamental flame chemistry. Effects of turbulent mixing on the reaction rates were also considered. The results show that the present KIVA/CHEMKIN model is able to simulate the ignition and combustion process in three different HCCI engines including a CFR engine and two modified heavy-duty diesel engines. Ignition timings were predicted correctly over a wide range of engine conditions without the need to adjust any kinetic constants. However, it was found that the use of chemical kinetics alone was not sufficient to accurately simulate the overall combustion rate. The effects of turbulent mixing on the reaction rates need to be considered to correctly simulate the combustion and heat release rates.
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July 2002
Technical Papers
Use of Detailed Chemical Kinetics to Study HCCI Engine Combustion With Consideration of Turbulent Mixing Effects
S.-C. Kong, Research Scientist,
S.-C. Kong, Research Scientist
Engine Research Center, Department of Mechanical Engineering, University of Wisconsin-Madison, 1500 Engineering Drive, Madison, WI 53706
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R. D. Reitz, Professor
R. D. Reitz, Professor
Engine Research Center, Department of Mechanical Engineering, University of Wisconsin-Madison, 1500 Engineering Drive, Madison, WI 53706
Search for other works by this author on:
S.-C. Kong, Research Scientist
Engine Research Center, Department of Mechanical Engineering, University of Wisconsin-Madison, 1500 Engineering Drive, Madison, WI 53706
R. D. Reitz, Professor
Engine Research Center, Department of Mechanical Engineering, University of Wisconsin-Madison, 1500 Engineering Drive, Madison, WI 53706
Contributed by the Internal Combustion Engine Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the ICE Division, Sept. 2000; final revision received by the ASME Headquarters, Mar. 2001. Editor: D. N. Assanis.
J. Eng. Gas Turbines Power. Jul 2002, 124(3): 702-707 (6 pages)
Published Online: June 19, 2002
Article history
Received:
September 1, 2000
Revised:
March 1, 2001
Online:
June 19, 2002
Citation
Kong, S., and Reitz, R. D. (June 19, 2002). "Use of Detailed Chemical Kinetics to Study HCCI Engine Combustion With Consideration of Turbulent Mixing Effects ." ASME. J. Eng. Gas Turbines Power. July 2002; 124(3): 702–707. https://doi.org/10.1115/1.1413766
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