Documents disponibles écrits par cet auteur

Operational optimization of batch distillation systems / Santosh Jain in Industrial & engineering chemistry research, Vol. 51 N° 16 (Avril 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 16 (Avril 2012) . - pp. 5749–5761 Titre : Operational optimization of batch distillation systems Type de document : texte imprimé Auteurs : Santosh Jain, Auteur ; Jin-Kuk Kim, Auteur ; Robin Smith, Auteur Année de publication : 2012 Article en page(s) : pp. 5749–5761 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Batch  distillation  systems Résumé : The optimal operation of batch distillation systems has been studied in this paper. A new approach termed the limiting gradient approach is introduced for effectively identifying feasible and cost-effective operating profiles for batch distillation systems. A new semirigorous model for batch distillation has been presented for considering holdup of the column, which is applicable for different batch distillation configurations. A novel optimization model incorporating the limiting gradient approach has been proposed, which significantly reduces computational burden to search for a feasible operation of a batch distillation column by considerably reducing effort for carrying out a large number of dynamic simulations required for optimization. Case studies have been presented to demonstrate the applicability of the approach for various batch distillation configurations and to illustrate how the proposed optimization framework systematically addresses different performance indices and objectives. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201844g [article] Operational optimization of batch distillation systems [texte imprimé] / Santosh Jain, Auteur ; Jin-Kuk Kim, Auteur ; Robin Smith, Auteur . - 2012 . - pp. 5749–5761. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 16 (Avril 2012) . - pp. 5749–5761 Mots-clés : Batch  distillation  systems Résumé : The optimal operation of batch distillation systems has been studied in this paper. A new approach termed the limiting gradient approach is introduced for effectively identifying feasible and cost-effective operating profiles for batch distillation systems. A new semirigorous model for batch distillation has been presented for considering holdup of the column, which is applicable for different batch distillation configurations. A novel optimization model incorporating the limiting gradient approach has been proposed, which significantly reduces computational burden to search for a feasible operation of a batch distillation column by considerably reducing effort for carrying out a large number of dynamic simulations required for optimization. Case studies have been presented to demonstrate the applicability of the approach for various batch distillation configurations and to illustrate how the proposed optimization framework systematically addresses different performance indices and objectives. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201844g

Optimal design of mixed refrigerant cycles / Frank Del Nogal ; Jin-Kuk Kim ; Simon Perry ; Robin Smith in Industrial & engineering chemistry research, Vol. 47 n°22 (Novembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 n°22 (Novembre 2008) . - p. 8724–8740 Titre : Optimal design of mixed refrigerant cycles Type de document : texte imprimé Auteurs : Frank Del Nogal, Auteur ; Jin-Kuk Kim, Auteur ; Simon Perry, Auteur ; Robin Smith, Auteur Année de publication : 2008 Article en page(s) : p. 8724–8740 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : mixed  refrigerant  design Résumé : A new approach for the optimal design of mixed refrigerant cycles is presented. It is based on mathematical programming and offers significant improvements in relation to previous approaches. It includes multistage refrigerant compression, full enforcement of the minimum temperature difference in heat exchangers, simultaneous optimization of variables, consideration of capital costs, and the use of stochastic optimization (genetic algorithm) to overcome local optima. The approach can be applied to either single mixed refrigerant cycles or to systems consisting of two of these in cascade. The effectiveness of the method is illustrated by revisiting previously published liquified natural gas case studies, for which better and feasible solutions are produced, and which prove the importance of considering multistage compression and capital costs during optimization. The application of genetic algorithms in the design of mixed refrigerant cycles permits a greater confidence in the optimality of the results. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800515u [article] Optimal design of mixed refrigerant cycles [texte imprimé] / Frank Del Nogal, Auteur ; Jin-Kuk Kim, Auteur ; Simon Perry, Auteur ; Robin Smith, Auteur . - 2008 . - p. 8724–8740. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°22 (Novembre 2008) . - p. 8724–8740 Mots-clés : mixed  refrigerant  design Résumé : A new approach for the optimal design of mixed refrigerant cycles is presented. It is based on mathematical programming and offers significant improvements in relation to previous approaches. It includes multistage refrigerant compression, full enforcement of the minimum temperature difference in heat exchangers, simultaneous optimization of variables, consideration of capital costs, and the use of stochastic optimization (genetic algorithm) to overcome local optima. The approach can be applied to either single mixed refrigerant cycles or to systems consisting of two of these in cascade. The effectiveness of the method is illustrated by revisiting previously published liquified natural gas case studies, for which better and feasible solutions are produced, and which prove the importance of considering multistage compression and capital costs during optimization. The application of genetic algorithms in the design of mixed refrigerant cycles permits a greater confidence in the optimality of the results. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800515u

Optimization of power - intensive energy systems with carbon capture / Xuesong Zheng in Industrial & engineering chemistry research, Vol. 50 N° 19 (Octobre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 11201–11225 Titre : Optimization of power - intensive energy systems with carbon capture Type de document : texte imprimé Auteurs : Xuesong Zheng, Auteur ; Jin-Kuk Kim, Auteur Année de publication : 2011 Article en page(s) : pp. 11201–11225 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Optimization  Energy  Systems Résumé : A systematic methodology for the synthesis of power systems has been developed, which explores the interactions among the equipment as well as the processes in power and utility systems. Also, the optimization is able to study the integration of CO2 capture processes with power systems for minimizing site-wide fuel consumption. Typical operating conditions for precombustion as well as postcombustion CO2 capture have been applied to estimate energy demand within the CO2 capture process. The power system is designed not only to meet the electricity and shaft power demand from the background process but also to satisfy the additional energy requirement incurred by CO2 removal. With the energy integration for the overall systems, the fuel consumption could be reduced, and operating cost, minimized. A case study is presented to demonstrate the usefulness and effectiveness of the proposed methodology for the design of energy and power systems in liquid natural gas (LNG) plants, under a carbon-constrained business environment. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie200839k?mi=ulgef4&af=R&pageSize=100&prevSe [...] [article] Optimization of power - intensive energy systems with carbon capture [texte imprimé] / Xuesong Zheng, Auteur ; Jin-Kuk Kim, Auteur . - 2011 . - pp. 11201–11225. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 11201–11225 Mots-clés : Optimization  Energy  Systems Résumé : A systematic methodology for the synthesis of power systems has been developed, which explores the interactions among the equipment as well as the processes in power and utility systems. Also, the optimization is able to study the integration of CO2 capture processes with power systems for minimizing site-wide fuel consumption. Typical operating conditions for precombustion as well as postcombustion CO2 capture have been applied to estimate energy demand within the CO2 capture process. The power system is designed not only to meet the electricity and shaft power demand from the background process but also to satisfy the additional energy requirement incurred by CO2 removal. With the energy integration for the overall systems, the fuel consumption could be reduced, and operating cost, minimized. A case study is presented to demonstrate the usefulness and effectiveness of the proposed methodology for the design of energy and power systems in liquid natural gas (LNG) plants, under a carbon-constrained business environment. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie200839k?mi=ulgef4&af=R&pageSize=100&prevSe [...]

Optimization of water systems with the consideration of pressure drop and pumping / Szu Wen Hung in Industrial & engineering chemistry research, Vol. 51 N° 2 (Janvier 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 2 (Janvier 2012) . - pp.848–859 Titre : Optimization of water systems with the consideration of pressure drop and pumping Type de document : texte imprimé Auteurs : Szu Wen Hung, Auteur ; Jin-Kuk Kim, Auteur Année de publication : 2012 Article en page(s) : pp.848–859 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Optimization  Water  Pressure  Pumping Résumé : Novel automated design method has been developed to consider impacts of pressure drop and pumping arrangement in the water network in which water reuse is exploited to reduce freshwater consumption in process industries. A superstructure-based optimization framework has been developed to systematically consider all the key design issues simultaneously, including flow rate constraints, pressure-drop constraints, and other operational constraints, as well as to fully accommodate rigorous economic trade-off between freshwater cost, piping cost, and pumping cost. The proposed optimization study enables the identification of the optimal distribution of water within the network, together with the most appropriate location and capacity of pumps required for water systems. A robust and reliable solution strategy has been developed to effectively deal with computational difficulties associated with solving a mixed-integer nonlinear programming problem, with the aid of the effective application of physical insights gained from conceptual understanding of the design problem. The network complexity has been readily controlled by imposing design constraints in the optimization. Examples have been provided to prove the effectiveness of the design method developed in this paper and to demonstrate the importance of considering pressure drop constraints in practice. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201775y?mi=snxuk8&af=R&pageSize=20&searchT [...] [article] Optimization of water systems with the consideration of pressure drop and pumping [texte imprimé] / Szu Wen Hung, Auteur ; Jin-Kuk Kim, Auteur . - 2012 . - pp.848–859. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 2 (Janvier 2012) . - pp.848–859 Mots-clés : Optimization  Water  Pressure  Pumping Résumé : Novel automated design method has been developed to consider impacts of pressure drop and pumping arrangement in the water network in which water reuse is exploited to reduce freshwater consumption in process industries. A superstructure-based optimization framework has been developed to systematically consider all the key design issues simultaneously, including flow rate constraints, pressure-drop constraints, and other operational constraints, as well as to fully accommodate rigorous economic trade-off between freshwater cost, piping cost, and pumping cost. The proposed optimization study enables the identification of the optimal distribution of water within the network, together with the most appropriate location and capacity of pumps required for water systems. A robust and reliable solution strategy has been developed to effectively deal with computational difficulties associated with solving a mixed-integer nonlinear programming problem, with the aid of the effective application of physical insights gained from conceptual understanding of the design problem. The network complexity has been readily controlled by imposing design constraints in the optimization. Examples have been provided to prove the effectiveness of the design method developed in this paper and to demonstrate the importance of considering pressure drop constraints in practice. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201775y?mi=snxuk8&af=R&pageSize=20&searchT [...]