A study of NO and soot evolution in a di diesel engine via planar imaging

Bülent Alataş; John A. Pinson; Thomas Litzinger; Domenic A. Santavicca

doi:10.4271/930973

A study of NO and soot evolution in a di diesel engine via planar imaging

Bülent Alataş, John A. Pinson, Thomas Litzinger, Domenic A. Santavicca

Research output: Contribution to conference › Paper › peer-review

26 Scopus citations

Abstract

An experimental study has been conducted to characterize NO and soot evolution in an optically-accessible D.I. diesel engine with a square combustion chamber. Two-dimensional laser-induced fluorescence was used to characterize NO evolution. Soot evolution was characterized by two-dimensional laser-induced incandescence (LII) and Mie scattering techniques as well as direct photography of the flame luminosity. The engine operating parameters were set to provide optimum conditions for NO imaging. Attenuation of the UV beam proved to be the major obstacle in obtaining NO images. Therefore, oxygen was added to the intake air charge in order to reduce the optical density of the combustion medium. The NO images showed that the NO formation started almost immediately after ignition and ceased no later than 40 degrees ATDC. No soot images could be obtained by the laser-induced incandescence or Mie scattering methods before 20 degrees ATDC since the soot concentration was very low.

Original language	English (US)
DOIs	https://doi.org/10.4271/930973
State	Published - Dec 1 1993
Event	International Congress and Exposition - Dearborn, MI, United States Duration: Mar 1 1993 → Mar 5 1993

Other

Other	International Congress and Exposition
Country/Territory	United States
City	Dearborn, MI
Period	3/1/93 → 3/5/93

All Science Journal Classification (ASJC) codes

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

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10.4271/930973

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title = "A study of NO and soot evolution in a di diesel engine via planar imaging",

abstract = "An experimental study has been conducted to characterize NO and soot evolution in an optically-accessible D.I. diesel engine with a square combustion chamber. Two-dimensional laser-induced fluorescence was used to characterize NO evolution. Soot evolution was characterized by two-dimensional laser-induced incandescence (LII) and Mie scattering techniques as well as direct photography of the flame luminosity. The engine operating parameters were set to provide optimum conditions for NO imaging. Attenuation of the UV beam proved to be the major obstacle in obtaining NO images. Therefore, oxygen was added to the intake air charge in order to reduce the optical density of the combustion medium. The NO images showed that the NO formation started almost immediately after ignition and ceased no later than 40 degrees ATDC. No soot images could be obtained by the laser-induced incandescence or Mie scattering methods before 20 degrees ATDC since the soot concentration was very low.",

author = "B{\"u}lent Alata{\c s} and Pinson, {John A.} and Thomas Litzinger and Santavicca, {Domenic A.}",

year = "1993",

month = dec,

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doi = "10.4271/930973",

language = "English (US)",

note = "International Congress and Exposition ; Conference date: 01-03-1993 Through 05-03-1993",

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T1 - A study of NO and soot evolution in a di diesel engine via planar imaging

AU - Alataş, Bülent

AU - Pinson, John A.

AU - Litzinger, Thomas

AU - Santavicca, Domenic A.

PY - 1993/12/1

Y1 - 1993/12/1

N2 - An experimental study has been conducted to characterize NO and soot evolution in an optically-accessible D.I. diesel engine with a square combustion chamber. Two-dimensional laser-induced fluorescence was used to characterize NO evolution. Soot evolution was characterized by two-dimensional laser-induced incandescence (LII) and Mie scattering techniques as well as direct photography of the flame luminosity. The engine operating parameters were set to provide optimum conditions for NO imaging. Attenuation of the UV beam proved to be the major obstacle in obtaining NO images. Therefore, oxygen was added to the intake air charge in order to reduce the optical density of the combustion medium. The NO images showed that the NO formation started almost immediately after ignition and ceased no later than 40 degrees ATDC. No soot images could be obtained by the laser-induced incandescence or Mie scattering methods before 20 degrees ATDC since the soot concentration was very low.

AB - An experimental study has been conducted to characterize NO and soot evolution in an optically-accessible D.I. diesel engine with a square combustion chamber. Two-dimensional laser-induced fluorescence was used to characterize NO evolution. Soot evolution was characterized by two-dimensional laser-induced incandescence (LII) and Mie scattering techniques as well as direct photography of the flame luminosity. The engine operating parameters were set to provide optimum conditions for NO imaging. Attenuation of the UV beam proved to be the major obstacle in obtaining NO images. Therefore, oxygen was added to the intake air charge in order to reduce the optical density of the combustion medium. The NO images showed that the NO formation started almost immediately after ignition and ceased no later than 40 degrees ATDC. No soot images could be obtained by the laser-induced incandescence or Mie scattering methods before 20 degrees ATDC since the soot concentration was very low.

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T2 - International Congress and Exposition

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A study of NO and soot evolution in a di diesel engine via planar imaging

Abstract

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