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Autothermal reforming of gasoline for fuel cell applications / Yongyou Hu in Industrial & engineering chemistry research, Vol. 47 N° 23 (Décembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9437–9446 Titre : Autothermal reforming of gasoline for fuel cell applications : a control-oriented dynamic model Type de document : texte imprimé Auteurs : Yongyou Hu, Auteur ; Donald J. Chmielewski, Auteur Année de publication : 2009 Article en page(s) : p. 9437–9446 Note générale : Chemistry engineering Langues : Anglais (eng) Mots-clés : Autothermal  Fuel  cell  Applications  Control-oriented  dynamic Résumé : In this work, we develop a control-oriented, reduced order dynamic model of an autothermal reforming (ATR) reactor. The targeted application is within the on-board fuel-processing unit of a fuel cell vehicle. A previous effort has illustrated that a predictive-type controller may be required to achieve desired performance within this application. The objective of the current effort is to determine the existence of a reduced order model with enough speed and accuracy to meet the online computational demands of a predictive controller. Central to the model development is an approximation of reaction rates that achieve reasonable accuracy near the inlet while preserving the overall energy balance. The resulting scheme converts a partial differential equation model into a set of ordinary differential/algebraic equations and achieves nearly a 4 orders of magnitude improvement in computational speed while preserving most of the nonlinear characteristics of the original system. Such results give clear indication that the hurdle of computational viability can be overcome and opens the door for further development of a predictive controller for the ATR application. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800209k [article] Autothermal reforming of gasoline for fuel cell applications : a control-oriented dynamic model [texte imprimé] / Yongyou Hu, Auteur ; Donald J. Chmielewski, Auteur . - 2009 . - p. 9437–9446. Chemistry engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9437–9446 Mots-clés : Autothermal  Fuel  cell  Applications  Control-oriented  dynamic Résumé : In this work, we develop a control-oriented, reduced order dynamic model of an autothermal reforming (ATR) reactor. The targeted application is within the on-board fuel-processing unit of a fuel cell vehicle. A previous effort has illustrated that a predictive-type controller may be required to achieve desired performance within this application. The objective of the current effort is to determine the existence of a reduced order model with enough speed and accuracy to meet the online computational demands of a predictive controller. Central to the model development is an approximation of reaction rates that achieve reasonable accuracy near the inlet while preserving the overall energy balance. The resulting scheme converts a partial differential equation model into a set of ordinary differential/algebraic equations and achieves nearly a 4 orders of magnitude improvement in computational speed while preserving most of the nonlinear characteristics of the original system. Such results give clear indication that the hurdle of computational viability can be overcome and opens the door for further development of a predictive controller for the ATR application. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800209k