A multi-spectral reordering technique for the full spectrum SLMB modeling of radiative heat transfer in nonuniform gaseous mixtures

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DOIResolve DOI: http://doi.org/10.1016/j.jqsrt.2010.09.011
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TypeArticle
Journal titleJournal of Quantitative Spectroscopy and Radiative Transfer
ISSN0022-4073
Volume112
Issue3
Pages394411; # of pages: 18
SubjectComputational costs; Flame configuration; Full spectrum; Gas radiation; Gaseous mixture; K-moment; Multi-spectral; New model; Nonisothermal; Nonuniform; Nonuniform media; Radiative heat transfer; Temperature range; Thermophysical conditions; Transmission function; Atmospheric pressure; Heat radiation; Radiative transfer; modeling; multispectral image; radiative transfer; spectrum
AbstractA Multi-Spectral Reordering (MSR) scheme is introduced to improve the performances of the Spectral-Line Moment-Based (SLMB) modeling for the handling of full spectrum radiative heat transfer calculations in nonuniform media. Using this simultaneous reordering of the spectrum for several thermophysical conditions together with employing approximate formulations to evaluate path-averaged transmission functions for nonisothermal and nonhomogenous gaseous paths, a novel full spectrum gas radiation modeling method in nonuniform gaseous mixtures is constituted. The method is presented in details as well as the building of associated databases for CO2 and H2O at atmospheric pressure and for the temperature range of 300-2700K. The new model is validated against line-by-line reference computations for a series of existing benchmarks and for a flame configuration. The MSR-SLMB modeling is shown to perform accurately and better than the standard SLMB one, while involving reasonable additional computational costs. © 2010 Elsevier Ltd.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Chemical Process and Environmental Technology (ICPET-ITPCE)
Peer reviewedYes
NPARC number21271283
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Record identifier442e8534-e47d-4e4b-a476-50e1ef9e7bc9
Record created2014-03-24
Record modified2016-05-09
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