H2O temperature sensor for low-pressure flames using tunable diode laser absorption near 2.9 νm

Handle URI:
http://hdl.handle.net/10754/561900
Title:
H2O temperature sensor for low-pressure flames using tunable diode laser absorption near 2.9 νm
Authors:
Li, Sijie; Farooq, Aamir ( 0000-0001-5296-2197 ) ; Hanson, Ronald Kenneth
Abstract:
Making use of a newly available rapid-tuning diode laser operating at wavelengths up to 2.9 νm, an absorption-based temperature sensor was developed for in situ measurements in low-pressure flames. Based on the systematic analysis of H2O vapor transitions in the fundamental vibrational bands (ν1 and ν3) of H2O in the range of 2.5-3.0 νm, an optimal closely-spaced spectral line pair near 2.9 νm was selected for its temperature sensitivity in the range of 1000-2500 K. The narrow-linewidth room-temperature laser was scanned repetitively across these spectral features at 5 kHz, enabling fast, accurate temperature sensing. Use of the temperature sensor was investigated in low-pressure flames supported on a McKenna burner at 15, 25 and 60 Torr. To avoid absorption by the cold gases in the flame edges and the recirculation region between the burner and the vacuum chamber wall, a variable-path in situ probe was designed and an optimal path length was determined to accurately measure the flame centerline temperature. Different flame conditions were investigated to illustrate the potential of this sensor system for sensitive measurements of combustion temperature in low-pressure flames. © 2011 IOP Publishing Ltd.
KAUST Department:
Clean Combustion Research Center; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Chemical Kinetics & Laser Sensors Laboratory
Publisher:
IOP Publishing
Journal:
Measurement Science and Technology
Issue Date:
19-Oct-2011
DOI:
10.1088/0957-0233/22/12/125301
Type:
Article
ISSN:
09570233
Sponsors:
We gratefully acknowledge support from the Air Force Office of Scientific Research (AFOSR) with Dr Julian Tishkoff as the technical monitor, and the US Department of Energy, Office of Basic Energy Sciences, with Dr Wade Sisk as the technical monitor. We would like to thank Nils Hansen and Paul Fugazzi from SANDIA National Laboratories for providing access to the low-pressure burner used for this study.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorLi, Sijieen
dc.contributor.authorFarooq, Aamiren
dc.contributor.authorHanson, Ronald Kennethen
dc.date.accessioned2015-08-03T09:33:39Zen
dc.date.available2015-08-03T09:33:39Zen
dc.date.issued2011-10-19en
dc.identifier.issn09570233en
dc.identifier.doi10.1088/0957-0233/22/12/125301en
dc.identifier.urihttp://hdl.handle.net/10754/561900en
dc.description.abstractMaking use of a newly available rapid-tuning diode laser operating at wavelengths up to 2.9 νm, an absorption-based temperature sensor was developed for in situ measurements in low-pressure flames. Based on the systematic analysis of H2O vapor transitions in the fundamental vibrational bands (ν1 and ν3) of H2O in the range of 2.5-3.0 νm, an optimal closely-spaced spectral line pair near 2.9 νm was selected for its temperature sensitivity in the range of 1000-2500 K. The narrow-linewidth room-temperature laser was scanned repetitively across these spectral features at 5 kHz, enabling fast, accurate temperature sensing. Use of the temperature sensor was investigated in low-pressure flames supported on a McKenna burner at 15, 25 and 60 Torr. To avoid absorption by the cold gases in the flame edges and the recirculation region between the burner and the vacuum chamber wall, a variable-path in situ probe was designed and an optimal path length was determined to accurately measure the flame centerline temperature. Different flame conditions were investigated to illustrate the potential of this sensor system for sensitive measurements of combustion temperature in low-pressure flames. © 2011 IOP Publishing Ltd.en
dc.description.sponsorshipWe gratefully acknowledge support from the Air Force Office of Scientific Research (AFOSR) with Dr Julian Tishkoff as the technical monitor, and the US Department of Energy, Office of Basic Energy Sciences, with Dr Wade Sisk as the technical monitor. We would like to thank Nils Hansen and Paul Fugazzi from SANDIA National Laboratories for providing access to the low-pressure burner used for this study.en
dc.publisherIOP Publishingen
dc.subjectH2Oen
dc.subjectinfrared absorptionen
dc.subjectlow-pressure flamesen
dc.subjecttemperature sensingen
dc.titleH2O temperature sensor for low-pressure flames using tunable diode laser absorption near 2.9 νmen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentChemical Kinetics & Laser Sensors Laboratoryen
dc.identifier.journalMeasurement Science and Technologyen
dc.contributor.institutionHigh Temperature Gasdynamics Laboratory, Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, United Statesen
kaust.authorFarooq, Aamiren
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