Optical diagnostic combustion comparisons of pump diesel with bio-derived diesel blends in an optical di diesel engine

Cody William Squibb, Harold Schock, Casey Allen, Tonghun Lee, Mulyanto Poort, Kyle Crayne

Research output: Contribution to journalConference articlepeer-review

Abstract

Combustion studies were completed using an International VT275-based, optical DI Diesel engine fueled with Diesel fuel, a Canola-derived FAMES biodiesel, as well as with a blend of the Canola-derived biodiesel and a cetane-reducing, oxygenated fuel, Di-Butyl Succinate. Three engine operating conditions were tested to examine the combustion of the fuels across a range of loads and combustion schemes. Pressure data and instantaneous images were recorded using a high-speed visible imaging, infrared imaging, and high-speed OH imaging techniques. The recorded images were post processed to analyze different metrics, such as projected areas of in-cylinder soot, OH, and combustion volumes. A substantially reduced in-cylinder area of soot formation is observed for the Canola-DBS blended fuel with a slight reduction from the pure FAMES biodiesel compared to pump Diesel fuel. This work presents that the reduction in soot for the blended fuel is caused by a twofold effect of the additional oxygen in the fuel as well as reduction in the autoignition of the fuel allowing for increased air entrainment into the fuel plumes.

Original languageEnglish (US)
JournalSAE Technical Papers
DOIs
StatePublished - Jan 1 2012
Externally publishedYes
EventSAE 2012 World Congress and Exhibition - Detroit, MI, United States
Duration: Apr 24 2012Apr 26 2012

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

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