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Faster dynamic process simulation using In situ adaptive tabulation / Sidharth Abrol in Industrial & engineering chemistry research, Vol. 49 N° 17 (Septembre 1, 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 17 (Septembre 1, 2010) . - pp 7814–7823 Titre : Faster dynamic process simulation using In situ adaptive tabulation Type de document : texte imprimé Auteurs : Sidharth Abrol, Auteur ; Mingder Lu, Auteur ; David Hill, Auteur Année de publication : 2010 Article en page(s) : pp 7814–7823 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Dynamic  process  Tabulation. Résumé : In situ adaptive tabulation (ISAT) is applied to dynamic process simulators for reducing computational run-time. Several enhancements of previous approaches are presented here, including a method for estimating the sensitivities using input−output data, along with different strategies for record distribution. A modified version of the original algorithm (mISAT) to improve performance of ISAT is also suggested. Case studies for first-principles and data-driven models using ISAT are performed to generate accurate trajectories, which are essentially the same as those obtained by direct integration. Computational speed-up using ISAT is also shown for these studies. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901755f [article] Faster dynamic process simulation using In situ adaptive tabulation [texte imprimé] / Sidharth Abrol, Auteur ; Mingder Lu, Auteur ; David Hill, Auteur . - 2010 . - pp 7814–7823. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 17 (Septembre 1, 2010) . - pp 7814–7823 Mots-clés : Dynamic  process  Tabulation. Résumé : In situ adaptive tabulation (ISAT) is applied to dynamic process simulators for reducing computational run-time. Several enhancements of previous approaches are presented here, including a method for estimating the sensitivities using input−output data, along with different strategies for record distribution. A modified version of the original algorithm (mISAT) to improve performance of ISAT is also suggested. Case studies for first-principles and data-driven models using ISAT are performed to generate accurate trajectories, which are essentially the same as those obtained by direct integration. Computational speed-up using ISAT is also shown for these studies. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901755f