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Computational fluid dynamics modeling of industrial flares operated in stand-by mode / Kanwar Devesh Singh in Industrial & engineering chemistry research, Vol. 51 N° 39 (Octobre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 39 (Octobre 2012) . - pp. 12611–12620 Titre : Computational fluid dynamics modeling of industrial flares operated in stand-by mode Type de document : texte imprimé Auteurs : Kanwar Devesh Singh, Auteur ; Tanaji Dabade, Auteur ; Hitesh Vaid, Auteur Année de publication : 2012 Article en page(s) : pp. 12611–12620 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Fluid  dynamics  modeling Résumé : Computational fluid dynamics (CFD) was applied to model industrial flares under low-Btu, low-flow rate conditions (stand-by mode). The modeled tests were conducted at the John Zink R&D facility in Tulsa, OK in September 2010, using propylene/Tulsa Natural Gas/nitrogen as vent gases under open-air conditions. This work focuses on CFD modeling using the EDC (Eddy Dissipation Concept) and PDF (Probability Density Function) models to predict the destruction and removal efficiency (DRE), combustion efficiency (CE), and speciated emissions with a reduced 50-species combustion mechanism. Generally, the EDC model underpredicts DRE/CE while the PDF model overpredicts DRE/CE, when compared with measurements. The sources of discrepancies and the challenges to the flare modeling in the stand-by mode are discussed. In view of the significant differences between the measured and modeled results, further investigations involving a better domain with a refined mesh, a different turbulence model, or a combination of EDC/PDF models are warranted. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300639f [article] Computational fluid dynamics modeling of industrial flares operated in stand-by mode [texte imprimé] / Kanwar Devesh Singh, Auteur ; Tanaji Dabade, Auteur ; Hitesh Vaid, Auteur . - 2012 . - pp. 12611–12620. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 39 (Octobre 2012) . - pp. 12611–12620 Mots-clés : Fluid  dynamics  modeling Résumé : Computational fluid dynamics (CFD) was applied to model industrial flares under low-Btu, low-flow rate conditions (stand-by mode). The modeled tests were conducted at the John Zink R&D facility in Tulsa, OK in September 2010, using propylene/Tulsa Natural Gas/nitrogen as vent gases under open-air conditions. This work focuses on CFD modeling using the EDC (Eddy Dissipation Concept) and PDF (Probability Density Function) models to predict the destruction and removal efficiency (DRE), combustion efficiency (CE), and speciated emissions with a reduced 50-species combustion mechanism. Generally, the EDC model underpredicts DRE/CE while the PDF model overpredicts DRE/CE, when compared with measurements. The sources of discrepancies and the challenges to the flare modeling in the stand-by mode are discussed. In view of the significant differences between the measured and modeled results, further investigations involving a better domain with a refined mesh, a different turbulence model, or a combination of EDC/PDF models are warranted. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300639f