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Development of full spectrum correlated k-model for spectral radiation penetration within liquid fuels

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Alinejad, Farid
dc.contributor.author Bordbar, Hadi
dc.contributor.author Hostikka, Simo
dc.date.accessioned 2020-08-21T08:31:55Z
dc.date.available 2020-08-21T08:31:55Z
dc.date.issued 2020-09
dc.identifier.citation Alinejad , F , Bordbar , H & Hostikka , S 2020 , ' Development of full spectrum correlated k-model for spectral radiation penetration within liquid fuels ' , International Journal of Heat and Mass Transfer , vol. 158 , 119990 . https://doi.org/10.1016/j.ijheatmasstransfer.2020.119990 en
dc.identifier.issn 0017-9310
dc.identifier.issn 1879-2189
dc.identifier.other PURE UUID: daaf050a-1a0f-4fc9-902b-dbf1cdbfc3d2
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/development-of-full-spectrum-correlated-kmodel-for-spectral-radiation-penetration-within-liquid-fuels(daaf050a-1a0f-4fc9-902b-dbf1cdbfc3d2).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85088025975&partnerID=8YFLogxK
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/45854
dc.description.abstract In this paper, full spectrum correlated k-distribution (FSCK) models are developed for several liquid fuels including decane, ethanol, ethylene glycol, heptane, and toluene. The models were built using high-resolution absorption spectra, collected from the literature. To validate the novel FSCK models, they were used to solve radiative heat transfer within liquid pools assuming three temperature profiles (i.e. constant temperature, linear and nonlinear temperature profiles) and the calculated transmissivity and radiative heat source of FSCK were compared with those of using high resolution absorption spectra and the gray models implementing Planck mean absorption coefficient. The sensitivity analysis was performed for the accuracy of the FSCK results with number of quadrature points for different fuels. Using seven quadrature points for FSCK model has been found to be sufficient for providing good accuracy of spectral radiative heat transfer within the liquid fuels with a reasonable computational cost. Moreover, we studied the effect of the reference temperature used in FSCK model and found out that for the pool fire scenario, the FSCK provides its best accuracy if an equivalent temperature representing the radiation feedback from the flame is used as the reference temperature. Comparison of computational costs of high-resolution spectral radiation calculations and FSCK method revealed a significant computational gain by use of FSCK model. en
dc.language.iso en en
dc.relation.ispartofseries International Journal of Heat and Mass Transfer en
dc.relation.ispartofseries Volume 158 en
dc.rights embargoedAccess en
dc.title Development of full spectrum correlated k-model for spectral radiation penetration within liquid fuels en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Civil Engineering
dc.subject.keyword FSCK method
dc.subject.keyword pool fire
dc.subject.keyword radiation penetration in liquid fuels
dc.subject.keyword reference temperature
dc.subject.keyword Spectral thermal radiation
dc.subject.keyword transmissivity
dc.identifier.urn URN:NBN:fi:aalto-202008214849
dc.identifier.doi 10.1016/j.ijheatmasstransfer.2020.119990
dc.date.embargo info:eu-repo/date/embargoEnd/2022-06-30

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