Effect of injection strategies on preignition tendency in a turbocharged single cylinder engine

Eshan Singh*, Adrian Ichim, Kai Morganti, Robert Dibble

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

Preignition is an abnormal combustion that has recently emerged as a bottleneck to downsizing, and efficiency improvement in spark ignited engines. Fuel-oil interaction on the cylinder liner is thought to be a major cause of the phenomenon. In this context, the current work uses varying injection strategies, leading to varying levels of homogeneity and fuel impingement on the cylinder liner, to (understand) establish potential causes of the preignition phenomenon. The injection is varied from one extreme of fuel-liner interaction to another; going from central direct injection to port injection of gaseous fuel and various combinations thereof. It was observed that preignition tendency is heavily dependent on the amount of fuel hitting the cylinder liner. As the phenomenon is stochastic, the frequency of its occurrence can be correlated with the fuel-liner interaction, provided all other test variables are held constant. The results motivated us to test the engine for maximum preignition-limited indicated mean effective pressure (IMEP) using dual fuel mode of gasoline and methane.

Original languageEnglish (US)
StatePublished - Jan 1 2017
Event11th Asia-Pacific Conference on Combustion, ASPACC 2017 - Sydney, Australia
Duration: Dec 10 2017Dec 14 2017

Conference

Conference11th Asia-Pacific Conference on Combustion, ASPACC 2017
CountryAustralia
CitySydney
Period12/10/1712/14/17

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Chemical Engineering(all)

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