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Numerical study on NOx reduction in a large-scale heavy fuel oil-fired boiler using suitable burner adjustments

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Darbandi, Masood
dc.contributor.author Fatin, Ali
dc.contributor.author Bordbar, Hadi
dc.date.accessioned 2020-04-09T06:30:15Z
dc.date.available 2020-04-09T06:30:15Z
dc.date.issued 2020-05-15
dc.identifier.citation Darbandi , M , Fatin , A & Bordbar , H 2020 , ' Numerical study on NOx reduction in a large-scale heavy fuel oil-fired boiler using suitable burner adjustments ' , Energy , vol. 199 , 117371 . https://doi.org/10.1016/j.energy.2020.117371 en
dc.identifier.issn 0360-5442
dc.identifier.issn 1873-6785
dc.identifier.other PURE UUID: d7a24d7d-e90c-4ce6-861f-9498f61ab03f
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/d7a24d7d-e90c-4ce6-861f-9498f61ab03f
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85082507486&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/41964936/ENG_Darbandi_et_al_Numerical_study_on_NOx_reduction_Energy.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/43767
dc.description.abstract A numerical framework was carefully developed to simulate the combustion of heavy-fuel-oil (HFO) in a large-scale boiler. The present numerical solutions were compared with the measured data of a laboratory benchmark test and on-site operational data of the chosen HFO-fired boiler. Next, the developed framework was used to perform the sensitivity analyses aiming to reduce the NO emission from the HFO-fired boiler without any adverse effect on its combustion performance. Practically, this study focused on re-adjustments of 24 working burners, which could control the combustion in the HFO-fired boiler. The early outcome showed that the boiler NO emission and its combustion performance could be controlled via the proper adjustments of air distributions within the three burners’ stages and the swirl intensity. Although bigger mean droplet sizes and higher injection velocities reduced the NO emission considerably, it adversely led to much lower boiler’s combustion efficiency. The present study eventually arrived at an optimal adjustment for the burners by reconsideration of the air distributions within the three burners’ stages, the flame swirl intensity magnitude, and the fuel injection quality. The achieved optimal adjustment reduced the amount of NO emission by 30%, while the combustion efficiency would remain unaffected. en
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Energy en
dc.relation.ispartofseries Volume 199 en
dc.rights openAccess en
dc.title Numerical study on NOx reduction in a large-scale heavy fuel oil-fired boiler using suitable burner adjustments en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Sharif University of Technology
dc.contributor.department Department of Civil Engineering
dc.subject.keyword Combustion
dc.subject.keyword Heavy fuel oil
dc.subject.keyword Boiler
dc.subject.keyword NO pollution
dc.subject.keyword Burner
dc.subject.keyword Simulation
dc.identifier.urn URN:NBN:fi:aalto-202004092803
dc.identifier.doi 10.1016/j.energy.2020.117371
dc.date.embargo info:eu-repo/date/embargoEnd/2022-03-31

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