Parametric study of solid-Phase axial heat conduction in thermally integrated microchannel networks / Angela Moreno in Industrial & engineering chemistry research, Vol. 47 N° 23 (Décembre 2008)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9040–9054 Titre : Parametric study of solid-Phase axial heat conduction in thermally integrated microchannel networks Type de document : texte imprimé Auteurs : Angela Moreno, Auteur ; Kevin Murphy, Auteur ; Benjamin A. Wilhite, Auteur Année de publication : 2009 Article en page(s) : p. 9040–9054 Note générale : Chemistry engineering Langues : Anglais (eng) Mots-clés : Parametric Study of Solid-Phase Axial Heat Conduction in Thermally Integrated Microchannel Networks Résumé : A parametric study is presented to highlight design challenges of thermally integrated microchannel networks for portable chemistry and/or fuels reforming. One-dimensional modeling analysis of heat transfer in a two-fluid system is presented for the case of (i) two nonreacting fluids (heat exchanger), (ii) a single exothermic reacting fluid and a second nonreacting fluid (regenerative combustor), and (iii) one exothermic reacting fluid and a second endothermic reacting fluid (heat exchanger reactor). In each case, the influence of solid-phase thermal conductivity and thermal packaging upon thermal efficiency, reaction conversion, and steady-state multiplicity is investigated. Results demonstrate the importance of both packaging and solid-phase axial thermal conduction upon system performance, with optimal performance obtained using low thermal conductivity substrates. Modeling analysis predicts steady-state multiplicity when employing low thermal conductivity materials, illustrating the need for future detailed stability analysis. Lastly, simplified mechanical analysis is presented to illustrate the value of coupled thermomechanical analysis. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8001638 [article] Parametric study of solid-Phase axial heat conduction in thermally integrated microchannel networks [texte imprimé] / Angela Moreno, Auteur ; Kevin Murphy, Auteur ; Benjamin A. Wilhite, Auteur . - 2009 . - p. 9040–9054. Chemistry engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9040–9054 Mots-clés : Parametric Study of Solid-Phase Axial Heat Conduction in Thermally Integrated Microchannel Networks Résumé : A parametric study is presented to highlight design challenges of thermally integrated microchannel networks for portable chemistry and/or fuels reforming. One-dimensional modeling analysis of heat transfer in a two-fluid system is presented for the case of (i) two nonreacting fluids (heat exchanger), (ii) a single exothermic reacting fluid and a second nonreacting fluid (regenerative combustor), and (iii) one exothermic reacting fluid and a second endothermic reacting fluid (heat exchanger reactor). In each case, the influence of solid-phase thermal conductivity and thermal packaging upon thermal efficiency, reaction conversion, and steady-state multiplicity is investigated. Results demonstrate the importance of both packaging and solid-phase axial thermal conduction upon system performance, with optimal performance obtained using low thermal conductivity substrates. Modeling analysis predicts steady-state multiplicity when employing low thermal conductivity materials, illustrating the need for future detailed stability analysis. Lastly, simplified mechanical analysis is presented to illustrate the value of coupled thermomechanical analysis. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8001638

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