CO concentration and temperature sensor for combustion gases using quantum-cascade laser absorption near 4.7 μm

Handle URI:
http://hdl.handle.net/10754/562196
Title:
CO concentration and temperature sensor for combustion gases using quantum-cascade laser absorption near 4.7 μm
Authors:
Ren, Wei; Farooq, Aamir ( 0000-0001-5296-2197 ) ; Davidson, David Frank; Hanson, Ronald Kenneth
Abstract:
A sensor for sensitive in situ measurements of carbon monoxide and temperature in combustion gases has been developed using absorption transitions in the (v′ = 1 ← v″ = 0) and (v′ = 2 ← v″ = 1) fundamental bands of CO. Recent availability of mid-infrared quantum-cascade (QC) lasers provides convenient access to the CO fundamental band near 4.7 μm, having approximately 104 and 102 times stronger absorption line-strengths compared to the overtone bands near 1.55 μm and 2.3 μm used previously to sense CO in combustion gases. Spectroscopic parameters of the selected transitions were determined via laboratory measurements in a shock tube over the 1100-2000 K range and also at room temperature. A single-laser absorption sensor was developed for accurate CO measurements in shock-heated gases by scanning the line pair v″ = 0, R(12) and v″ = 1, R(21) at 2.5 kHz. To capture the rapidly varying CO time-histories in chemical reactions, two different QC lasers were then used to probe the line-center absorbance of transitions v″ = 0, P(20) and v″ = 1, R(21) with a bandwidth of 1 MHz using fixed-wavelength direct absorption. The sensor was applied in successful shock tube measurements of temperature and CO time-histories during the pyrolysis and oxidation of methyl formate, illustrating the capability of this sensor for chemical kinetic studies. © 2012 Springer-Verlag.
KAUST Department:
Clean Combustion Research Center; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Chemical Kinetics & Laser Sensors Laboratory
Publisher:
Springer Verlag
Journal:
Applied Physics B: Lasers and Optics
Issue Date:
25-May-2012
DOI:
10.1007/s00340-012-5046-1
Type:
Article
ISSN:
09462171
Sponsors:
This work was supported by the Combustion Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001198, the Army Research Office (ARO) with Dr. Ralph Anthenien as contract monitor, and the Air Force Office of Scientific Research (AFOSR) with Dr. Julian Tishkoff as technical monitor. The authors thank Dr. Jay Jeffries for his help on the selection and specification of the lasers and acquisition of the needed support electronics.
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.authorRen, Weien
dc.contributor.authorFarooq, Aamiren
dc.contributor.authorDavidson, David Franken
dc.contributor.authorHanson, Ronald Kennethen
dc.date.accessioned2015-08-03T09:47:01Zen
dc.date.available2015-08-03T09:47:01Zen
dc.date.issued2012-05-25en
dc.identifier.issn09462171en
dc.identifier.doi10.1007/s00340-012-5046-1en
dc.identifier.urihttp://hdl.handle.net/10754/562196en
dc.description.abstractA sensor for sensitive in situ measurements of carbon monoxide and temperature in combustion gases has been developed using absorption transitions in the (v′ = 1 ← v″ = 0) and (v′ = 2 ← v″ = 1) fundamental bands of CO. Recent availability of mid-infrared quantum-cascade (QC) lasers provides convenient access to the CO fundamental band near 4.7 μm, having approximately 104 and 102 times stronger absorption line-strengths compared to the overtone bands near 1.55 μm and 2.3 μm used previously to sense CO in combustion gases. Spectroscopic parameters of the selected transitions were determined via laboratory measurements in a shock tube over the 1100-2000 K range and also at room temperature. A single-laser absorption sensor was developed for accurate CO measurements in shock-heated gases by scanning the line pair v″ = 0, R(12) and v″ = 1, R(21) at 2.5 kHz. To capture the rapidly varying CO time-histories in chemical reactions, two different QC lasers were then used to probe the line-center absorbance of transitions v″ = 0, P(20) and v″ = 1, R(21) with a bandwidth of 1 MHz using fixed-wavelength direct absorption. The sensor was applied in successful shock tube measurements of temperature and CO time-histories during the pyrolysis and oxidation of methyl formate, illustrating the capability of this sensor for chemical kinetic studies. © 2012 Springer-Verlag.en
dc.description.sponsorshipThis work was supported by the Combustion Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001198, the Army Research Office (ARO) with Dr. Ralph Anthenien as contract monitor, and the Air Force Office of Scientific Research (AFOSR) with Dr. Julian Tishkoff as technical monitor. The authors thank Dr. Jay Jeffries for his help on the selection and specification of the lasers and acquisition of the needed support electronics.en
dc.publisherSpringer Verlagen
dc.titleCO concentration and temperature sensor for combustion gases using quantum-cascade laser absorption near 4.7 μmen
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.journalApplied Physics B: Lasers and Opticsen
dc.contributor.institutionHigh Temperature Gasdynamics Laboratory, Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, United Statesen
kaust.authorFarooq, Aamiren
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.