A numerical study has been performed of the air/fuel preparation process in a cold-starting port-injected spark-ignition engine. The latest models were implemented for spray impingement and multicomponent vaporization of the droplet and wall film accounting for finite diffusion in the liquid. The infinite diffusion model was found insufficient for predicting vaporization in this engine, and the single-component fuel representation yields results significantly different from those from the multicomponent one. The operating parameters studied included injection timing, swirl, speed, target path, enrichment, and fuel accumulation. In-cylinder measurements were compared and good agreement was achieved. Detailed quantitative analysis of the air/fuel preparation of the engine was reported.
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e-mail: cflee@uiuc.edu
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July 2004
Technical Papers
Computations of Air/Fuel Preparation Process in a Port-Injected Spark-Ignition Engine During Cold-Starting Phase
Yangbing Zeng,
Yangbing Zeng
Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 140 Mechanical Engineering Building, 1206 West Green Street, Urbana, IL 61801
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C. F. Lee
e-mail: cflee@uiuc.edu
C. F. Lee
Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 140 Mechanical Engineering Building, 1206 West Green Street, Urbana, IL 61801
Search for other works by this author on:
Yangbing Zeng
Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 140 Mechanical Engineering Building, 1206 West Green Street, Urbana, IL 61801
C. F. Lee
Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 140 Mechanical Engineering Building, 1206 West Green Street, Urbana, IL 61801
e-mail: cflee@uiuc.edu
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, May 2001; final revision received Nov. 2003. Associate Editor: D. Assanis.
J. Eng. Gas Turbines Power. Jul 2004, 126(3): 635-644 (10 pages)
Published Online: August 11, 2004
Article history
Received:
May 1, 2001
Revised:
November 1, 2003
Online:
August 11, 2004
Citation
Zeng , Y., and Lee, C. F. (August 11, 2004). "Computations of Air/Fuel Preparation Process in a Port-Injected Spark-Ignition Engine During Cold-Starting Phase ." ASME. J. Eng. Gas Turbines Power. July 2004; 126(3): 635–644. https://doi.org/10.1115/1.1760524
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