Computations of air/fuel preparation process in a port-injected spark-ignition engine during cold-starting phase

Yangbing Zeng, Chia-Fon Lee

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)635-644
Number of pages10
JournalJournal of Engineering for Gas Turbines and Power
Volume126
Issue number3
DOIs
StatePublished - Jul 1 2004

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Fuel Technology
  • Aerospace Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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