Laser rayleigh scattering for flame thermometry in a toroidal jet stirred combustor

Robert B. Barat; John P. Longwell; Adel F. Sarofim; Stephen P. Smith; Ezra Bar-Ziv

doi:10.1364/AO.30.003003

Laser rayleigh scattering for flame thermometry in a toroidal jet stirred combustor

Robert B. Barat
, John P. Longwell
, Adel F. Sarofim
, Stephen P. Smith
, Ezra Bar-Ziv

Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Pulsed laser Rayleigh scattering is used to obtain instantaneous flame temperatures in a turbulent flow combustor with poor optical access, a background of black body radiation, and laser induced glare. A novel method based on polarization is used for the extraction of the Rayleigh scattering. Probability density functions (PDFs) of the fluctuating temperature are obtained for fuel lean ethylene-air combustion. The smearing effects of shot noise are removed from the observed PDFs to obtain the actual fluctuating temperature PDF.

Original language	English (US)
Pages (from-to)	3003-3010
Number of pages	8
Journal	Applied Optics
Volume	30
Issue number	21
DOIs	https://doi.org/10.1364/AO.30.003003
State	Published - Jul 20 1991

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

Keywords

Combustion
Laser
PDF
Rayleigh scattering
Reconstruction
Shot noise
Temperature

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10.1364/AO.30.003003

Cite this

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title = "Laser rayleigh scattering for flame thermometry in a toroidal jet stirred combustor",

abstract = "Pulsed laser Rayleigh scattering is used to obtain instantaneous flame temperatures in a turbulent flow combustor with poor optical access, a background of black body radiation, and laser induced glare. A novel method based on polarization is used for the extraction of the Rayleigh scattering. Probability density functions (PDFs) of the fluctuating temperature are obtained for fuel lean ethylene-air combustion. The smearing effects of shot noise are removed from the observed PDFs to obtain the actual fluctuating temperature PDF.",

keywords = "Combustion, Laser, PDF, Rayleigh scattering, Reconstruction, Shot noise, Temperature",

author = "Barat, \{Robert B.\} and Longwell, \{John P.\} and Sarofim, \{Adel F.\} and Smith, \{Stephen P.\} and Ezra Bar-Ziv",

note = "Funding Information: The authors are thankful to the Director, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, for providing necessary facilities to the project. The Director and staff, Department of Animal Husbandry, Dairy Development and Fisheries, Telangana is duly acknowledged for their extraordinary help and support during the study.",

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doi = "10.1364/AO.30.003003",

language = "English (US)",

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AU - Barat, Robert B.

AU - Longwell, John P.

AU - Sarofim, Adel F.

AU - Smith, Stephen P.

AU - Bar-Ziv, Ezra

N1 - Funding Information: The authors are thankful to the Director, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, for providing necessary facilities to the project. The Director and staff, Department of Animal Husbandry, Dairy Development and Fisheries, Telangana is duly acknowledged for their extraordinary help and support during the study.

PY - 1991/7/20

Y1 - 1991/7/20

N2 - Pulsed laser Rayleigh scattering is used to obtain instantaneous flame temperatures in a turbulent flow combustor with poor optical access, a background of black body radiation, and laser induced glare. A novel method based on polarization is used for the extraction of the Rayleigh scattering. Probability density functions (PDFs) of the fluctuating temperature are obtained for fuel lean ethylene-air combustion. The smearing effects of shot noise are removed from the observed PDFs to obtain the actual fluctuating temperature PDF.

AB - Pulsed laser Rayleigh scattering is used to obtain instantaneous flame temperatures in a turbulent flow combustor with poor optical access, a background of black body radiation, and laser induced glare. A novel method based on polarization is used for the extraction of the Rayleigh scattering. Probability density functions (PDFs) of the fluctuating temperature are obtained for fuel lean ethylene-air combustion. The smearing effects of shot noise are removed from the observed PDFs to obtain the actual fluctuating temperature PDF.

KW - Combustion

KW - Laser

KW - PDF

KW - Rayleigh scattering

KW - Reconstruction

KW - Shot noise

KW - Temperature

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DO - 10.1364/AO.30.003003

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EP - 3010

JO - Applied Optics

JF - Applied Optics

IS - 21

ER -

Laser rayleigh scattering for flame thermometry in a toroidal jet stirred combustor

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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