This paper uses the HCT (hydrodynamics, chemistry and transport) chemical kinetics code to analyze natural gas combustion in an HCCI engine. The HCT code has been modified to better represent the conditions existing inside an engine, including a wall heat transfer correlation. Combustion control and low power output per displacement remain as two of the biggest challenges to obtaining satisfactory performance out of an HCCI engine, and these challenges are addressed in this paper. The paper considers the effect of natural gas composition on HCCI combustion, and then explores three control strategies for HCCI engines: DME (dimethyl ether) addition, intake heating and hot EGR addition. The results show that HCCI combustion is sensitive to natural gas composition, and an active control may be required to compensate for possible changes in composition. Each control strategy has been evaluated for its influence on the performance of an HCCI engine.
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April 2001
Technical Papers
Detailed Chemical Kinetic Simulation of Natural Gas HCCI Combustion: Gas Composition Effects and Investigation of Control Strategies
D. Flowers,
D. Flowers
Lawrence Livermore National Laboratory, Livermore, CA 94551
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S. Aceves,
S. Aceves
Lawrence Livermore National Laboratory, Livermore, CA 94551
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C. K. Westbrook,
C. K. Westbrook
Lawrence Livermore National Laboratory, Livermore, CA 94551
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J. R. Smith,
J. R. Smith
Lawrence Livermore National Laboratory, Livermore, CA 94551
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R. Dibble
R. Dibble
University of California, Berkeley, CA 94720
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D. Flowers
Lawrence Livermore National Laboratory, Livermore, CA 94551
S. Aceves
Lawrence Livermore National Laboratory, Livermore, CA 94551
C. K. Westbrook
Lawrence Livermore National Laboratory, Livermore, CA 94551
J. R. Smith
Lawrence Livermore National Laboratory, Livermore, CA 94551
R. Dibble
University of California, Berkeley, CA 94720
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 Apr. 25, 2000; final revision received by the ASME Headquarters Dec. 6, 2000. Associate Editor: D. Assanis.
J. Eng. Gas Turbines Power. Apr 2001, 123(2): 433-439 (7 pages)
Published Online: December 6, 2000
Article history
Received:
April 25, 2000
Revised:
December 6, 2000
Citation
Flowers , D., Aceves , S., Westbrook , C. K., Smith, J. R., and Dibble, R. (December 6, 2000). "Detailed Chemical Kinetic Simulation of Natural Gas HCCI Combustion: Gas Composition Effects and Investigation of Control Strategies ." ASME. J. Eng. Gas Turbines Power. April 2001; 123(2): 433–439. https://doi.org/10.1115/1.1364521
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