Analysis of Variations in Fuel Spray, Combustion, and Soot Production in an Optical Diesel Engine Operating under High Simulated Exhaust Gas Recirculation Operating Conditions

Cody William Squibb, Harold Schock, Ravi Vedula, Thomas Stuecken

Research output: Contribution to journalArticle

Abstract

In-cylinder visualization experiments were completed using an International VT275-based optical DI Diesel engine operating under high simulated exhaust gas recirculation combustion conditions. Experiments were run at four load conditions to examine variations in fuel spray, combustion, and soot production. Mass fraction burned analyses of pressure data were used to investigate the combustion processes of the various operating conditions. An infrared camera was used to visualize fuel spray events and exothermic combustion gases. A visible, high-speed camera was used to image natural luminosity produced by soot. The recorded images were post-processed to analyze the fuel spray, the projected exothermic areas produced by combustion, as well as soot production of different load conditions. Probability maps of combustion and fuel spray occurrence in the cylinder are presented for insight into the combustion processes of the different conditions. From the analysis presented in this paper, it is observed that, as load is increased, different combustion patterns occur, leading to differences in the patterns of combustion and where soot is produced.

LanguageEnglish (US)
JournalSAE Technical Papers
DOIs
StatePublished - 2016

Profile

Exhaust gas recirculation
Soot
Diesel engines
Engine cylinders
High speed cameras
Luminance
Visualization
Experiments
Cameras
Infrared radiation

ASJC Scopus subject areas

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

Cite this

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title = "Analysis of Variations in Fuel Spray, Combustion, and Soot Production in an Optical Diesel Engine Operating under High Simulated Exhaust Gas Recirculation Operating Conditions",
abstract = "In-cylinder visualization experiments were completed using an International VT275-based optical DI Diesel engine operating under high simulated exhaust gas recirculation combustion conditions. Experiments were run at four load conditions to examine variations in fuel spray, combustion, and soot production. Mass fraction burned analyses of pressure data were used to investigate the combustion processes of the various operating conditions. An infrared camera was used to visualize fuel spray events and exothermic combustion gases. A visible, high-speed camera was used to image natural luminosity produced by soot. The recorded images were post-processed to analyze the fuel spray, the projected exothermic areas produced by combustion, as well as soot production of different load conditions. Probability maps of combustion and fuel spray occurrence in the cylinder are presented for insight into the combustion processes of the different conditions. From the analysis presented in this paper, it is observed that, as load is increased, different combustion patterns occur, leading to differences in the patterns of combustion and where soot is produced.",
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AU - Schock,Harold

AU - Vedula,Ravi

AU - Stuecken,Thomas

PY - 2016

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AB - In-cylinder visualization experiments were completed using an International VT275-based optical DI Diesel engine operating under high simulated exhaust gas recirculation combustion conditions. Experiments were run at four load conditions to examine variations in fuel spray, combustion, and soot production. Mass fraction burned analyses of pressure data were used to investigate the combustion processes of the various operating conditions. An infrared camera was used to visualize fuel spray events and exothermic combustion gases. A visible, high-speed camera was used to image natural luminosity produced by soot. The recorded images were post-processed to analyze the fuel spray, the projected exothermic areas produced by combustion, as well as soot production of different load conditions. Probability maps of combustion and fuel spray occurrence in the cylinder are presented for insight into the combustion processes of the different conditions. From the analysis presented in this paper, it is observed that, as load is increased, different combustion patterns occur, leading to differences in the patterns of combustion and where soot is produced.

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