Study on nonpremixed methane/air combustion from flame structure and NOX emission aspect for different burner head structures

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dc.authoridBuyukakin, Mustafa Kemalettin/0000-0002-0791-0651
dc.contributor.authorBuyukakin, Mustafa Kemalettin
dc.contributor.authorOztuna, Semiha
dc.date.accessioned2024-06-12T11:08:25Z
dc.date.available2024-06-12T11:08:25Z
dc.date.issued2019
dc.departmentTrakya Üniversitesien_US
dc.description.abstractIn the present study, the air turbulator, which is a part of a nonpremixed burner, is investigated numerically in terms of its effects on the diffusion methane flame structure and NOX emissions. A computational fluid dynamics (CFD) code was used for the numerical analysis. At first, four experiments were conducted using natural gas fuel. In the experimental studies, the excess air ratio was taken constant as 1.2, while the fuel consumption rate was changed between 22 and 51 Nm(3)/h. After the experimental studies, the CFD studies were carried out. Pure methane was taken as fuel for the simulations. The nonpremixed combustion model with the steady laminar flamelet model (SFM) approach was used in the combustion analyses. Methane-air extinction mechanism with 17 species and 58 reactions was used for the simulations. The results obtained from the CFD studies were confronted with the measurements of the flue gas emissions in the experimental studies. Then, a modified burner head was analysed numerically for the different air turbulator blade numbers and angles. The CFD results show that increasing the air turbulator blade number and angle causes the thermal NO emissions to be reduced in the flue gas by making the flame in the combustion chamber more uniform than the original case. This new flame structure provides better mixing of the fuel and combustion air. Thus, the diffusion flame structure in the combustion chamber takes the form of the partially premixed flame structure. The maximum reduction in the thermal NO emissions in the flue gas is achieved at 38% according to the original case.en_US
dc.description.sponsorshipEcostar Combustion Systems Company, Turkey; coordinatorship of scientific research projects of Trakya University, Turkey [TUBAP-2016/172]en_US
dc.description.sponsorshipEcostar Combustion Systems Company, Turkey; The coordinatorship of scientific research projects of Trakya University, Turkey, Grant/Award Number: TUBAP-2016/172en_US
dc.identifier.doi10.1002/er.4641
dc.identifier.endpage5437en_US
dc.identifier.issn0363-907X
dc.identifier.issn1099-114X
dc.identifier.issue10en_US
dc.identifier.scopus2-s2.0-85067357440en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage5421en_US
dc.identifier.urihttps://doi.org/10.1002/er.4641
dc.identifier.urihttps://hdl.handle.net/20.500.14551/22430
dc.identifier.volume43en_US
dc.identifier.wosWOS:000477014400022en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofInternational Journal Of Energy Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMethane Combustionen_US
dc.subjectNonpremixed Combustionen_US
dc.subjectNOX Emissionsen_US
dc.subjectTurbulatoren_US
dc.subjectSyngasen_US
dc.subjectModelsen_US
dc.titleStudy on nonpremixed methane/air combustion from flame structure and NOX emission aspect for different burner head structuresen_US
dc.typeArticleen_US

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