Absorption cross-section measurements of methane, ethane, ethylene and methanol at high temperatures

Handle URI:
http://hdl.handle.net/10754/347282
Title:
Absorption cross-section measurements of methane, ethane, ethylene and methanol at high temperatures
Authors:
Alrefae, Majed ( 0000-0001-5082-6204 ) ; Es-sebbar, Et-touhami; Farooq, Aamir ( 0000-0001-5296-2197 )
Abstract:
Mid-IR absorption cross-sections are measured for methane, ethane, ethylene and methanol over 2800-3400 cm-1 (2.9-3.6 μm) spectral region. Measurements are carried out using a Fourier-Transform-Infrared (FTIR) spectrometer with temperatures ranging 296-1100 K and pressures near atmospheric. As temperature increases, the peak cross-sections decrease but the wings of the bands increase as higher rotational lines appear. Integrated band intensity is also calculated over the measured spectral region and is found to be a very weak function of temperature. The absorption cross-sections of the relatively small fuels studied here show dependence on the bath gas. This effect is investigated by studying the variation of absorption cross-sections at 3.392 μm using a HeNe laser in mixtures of fuel and nitrogen, argon, or helium. Mixtures of fuel with He have the highest value of absorption cross-sections followed by Ar and N2. Molecules with narrow absorption lines, such as methane and methanol, show strong dependence on bath gas than molecules with relatively broader absorption features i.e. ethane and ethylene. © 2014 Elsevier Inc. All rights reserved.
KAUST Department:
Clean Combustion Research Center; Physical Sciences and Engineering (PSE) Division
Citation:
Absorption cross-section measurements of methane, ethane, ethylene and methanol at high temperatures 2014, 303:8 Journal of Molecular Spectroscopy
Publisher:
Elsevier BV
Journal:
Journal of Molecular Spectroscopy
Issue Date:
Sep-2014
DOI:
10.1016/j.jms.2014.06.007
Type:
Article
ISSN:
00222852
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0022285214001350
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorAlrefae, Majeden
dc.contributor.authorEs-sebbar, Et-touhamien
dc.contributor.authorFarooq, Aamiren
dc.date.accessioned2015-03-30T06:57:09Zen
dc.date.available2015-03-30T06:57:09Zen
dc.date.issued2014-09en
dc.identifier.citationAbsorption cross-section measurements of methane, ethane, ethylene and methanol at high temperatures 2014, 303:8 Journal of Molecular Spectroscopyen
dc.identifier.issn00222852en
dc.identifier.doi10.1016/j.jms.2014.06.007en
dc.identifier.urihttp://hdl.handle.net/10754/347282en
dc.description.abstractMid-IR absorption cross-sections are measured for methane, ethane, ethylene and methanol over 2800-3400 cm-1 (2.9-3.6 μm) spectral region. Measurements are carried out using a Fourier-Transform-Infrared (FTIR) spectrometer with temperatures ranging 296-1100 K and pressures near atmospheric. As temperature increases, the peak cross-sections decrease but the wings of the bands increase as higher rotational lines appear. Integrated band intensity is also calculated over the measured spectral region and is found to be a very weak function of temperature. The absorption cross-sections of the relatively small fuels studied here show dependence on the bath gas. This effect is investigated by studying the variation of absorption cross-sections at 3.392 μm using a HeNe laser in mixtures of fuel and nitrogen, argon, or helium. Mixtures of fuel with He have the highest value of absorption cross-sections followed by Ar and N2. Molecules with narrow absorption lines, such as methane and methanol, show strong dependence on bath gas than molecules with relatively broader absorption features i.e. ethane and ethylene. © 2014 Elsevier Inc. All rights reserved.en
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0022285214001350en
dc.rightsArchived with thanks to Journal of Molecular Spectroscopy. Copyright © 2014 Elsevier Inc. All rights reserved.en
dc.titleAbsorption cross-section measurements of methane, ethane, ethylene and methanol at high temperaturesen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of Molecular Spectroscopyen
dc.eprint.versionPost-printen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAlrefae, Majeden
kaust.authorEs-sebbar, Et-touhamien
kaust.authorFarooq, Aamiren
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