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Biogas combustion: chemiluminescence fingerprint

2018-11Journal article Restricted access
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dc.contributor.authorQuintino, Filipe
dc.contributor.authorTrindade, Teodoro
dc.contributor.authorFernandes, Edgar C.
dc.date.accessioned2018-09-11T09:55:35Z
dc.date.available2018-09-11T09:55:35Z
dc.date.issued2018-11
dc.description.abstractA numerical and experimental study was conducted, with the purpose of inferring the influence of the CO2 concentration (xCO2) for different equivalence ratios (ϕ) on CH4/CO2/air (biogas) flames chemiluminescence. A thorough analysis on the signals of OH∗, CH∗, C∗2 and CO∗2 was performed. Typical biogas compositions were tested under laminar atmospheric flame conditions, within the unburned equivalence ratio of 0.9 and 1.14 with CO2 concentrations up to 40% in the blend. Experimental measurements of chemiluminescence were done using spectroscopy in the UV–visible region of the spectra. Simulations were performed with the GRI-Mech 3.0 mechanism without accounting for the nitrogen chemistry, extended with a chemiluminescence kinetics of OH∗, CH∗, C∗2 and CO∗2, in a burner-stabilized frame in CANTERA. Experimental measurements and numerical simulations are compared and generally are in good agreement. It was verified that CO2 dilution leads to a regular decrease in the emission intensities of OH∗, CH∗, C∗2 and CO∗2. Relations between chemiluminescence intensity ratios and xCO2 and ϕ were found. It was shown that OH∗/CO∗2 and C∗2/CO∗2 have the potential predict xCO2 in CH4/CO2/air flames. Moreover, it was verified that OH∗/CH∗, OH∗/C∗2 and CH∗/C∗2 are well suited to infer ϕ for the blends tested. It was verified that xCO2 does not cause relevant changes in the chemiluminescence ratios when inferring ϕ.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationQUINTINO, Filipe M.; TRINDADE, Teodoro Pereira; FERNANDES, E. C. – Biogas combustion: chemiluminescence fingerprint. Fuel. ISSN 0016-2361. Vol. 231 (2018), pp. 328-340pt_PT
dc.identifier.doihttps://doi.org/10.1016/j.fuel.2018.05.086pt_PT
dc.identifier.issn0016-2361
dc.identifier.urihttp://hdl.handle.net/10400.21/8854
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://reader.elsevier.com/reader/sd/1CD32332609178020D98867D6927FC8A87A2148A0D1E90D1E0566AADE65BAC43D64F67AB885F02C02DE57D6325C26322pt_PT
dc.subjectBiogaspt_PT
dc.subjectChemiluminescencept_PT
dc.subjectSpectroscopypt_PT
dc.subjectPremixed flamespt_PT
dc.titleBiogas combustion: chemiluminescence fingerprintpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FEEA%2F50009%2F2013/PT
oaire.citation.endPage340pt_PT
oaire.citation.startPage328pt_PT
oaire.citation.titleFuelpt_PT
oaire.citation.volume231pt_PT
oaire.fundingStream5876
person.familyNameQuintino
person.familyNameTrindade
person.familyNameFernandes
person.givenNameFilipe
person.givenNameTeodoro
person.givenNameEdgar Caetano
person.identifier.ciencia-id2318-1487-99C4
person.identifier.ciencia-idAF16-205A-5655
person.identifier.ciencia-id5212-AC58-4EB2
person.identifier.orcid0000-0001-9445-2523
person.identifier.orcid0000-0003-2729-4873
person.identifier.orcid0000-0003-4854-2119
person.identifier.ridU-7949-2018
person.identifier.ridE-6706-2012
person.identifier.scopus-author-id57202254065
person.identifier.scopus-author-id35808636800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication5e44a8b9-3035-4265-a5f1-bcb01208d70d
relation.isAuthorOfPublication665d6a9e-8b43-43da-8528-c2c57984791d
relation.isAuthorOfPublication3017362e-3caf-4b92-ad5b-33071dd871b2
relation.isAuthorOfPublication.latestForDiscovery3017362e-3caf-4b92-ad5b-33071dd871b2
relation.isProjectOfPublicationb8e0939f-32f5-4a66-94b5-d39c836a6a39
relation.isProjectOfPublication.latestForDiscoveryb8e0939f-32f5-4a66-94b5-d39c836a6a39

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