| Titre : | Parametric study of solid-Phase axial heat conduction in thermally integrated microchannel networks (2009) |
| Auteurs : | Angela Moreno, Auteur ; Kevin Murphy, Auteur ; Benjamin A. Wilhite, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 47 N° 23, Décembre 2008) |
| Article en page(s) : | p. 9040–9054 |
| Note générale : | Chemistry engineering |
| Langues : | Anglais |
| Tags : | 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 |
