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Holistic approach for design of minimum water networks using the mixed integer linear programming (MILP) technique / Zainatul B. Handani in Industrial & engineering chemistry research, Vol. 49 N° 12 (Juin 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5742–5751 Titre : Holistic approach for design of minimum water networks using the mixed integer linear programming (MILP) technique Type de document : texte imprimé Auteurs : Zainatul B. Handani, Auteur ; Sharifah R. Wan Alwi, Auteur ; Haslenda Hashim, Auteur Année de publication : 2010 Article en page(s) : pp. 5742–5751 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Mixed  integer  linear  programming  Fresh  water  Wastewater Résumé : Minimum fresh water consumption and wastewater generation in a facility can be achieved when all options for water minimization including source elimination, reduction, reuse/recycle, outsourcing, and regeneration have been considered. This work presents the development of a new generic mixed integer linear programming (MILP) model to holistically minimize fresh water consumption and wastewater generation for systems involving multiple contaminants where the various options for water minimization are simultaneously considered in order to ultimately generate a minimum water utilization network. The MILP model proposed in this work can be used to simultaneously generate the minimum water targets and design the minimum water network for global water-using operations for buildings and industry. This work also includes cases where fresh water concentrations for all contaminants are assumed to be either zero or non-zero. The approach has been successfully implemented in case studies involving an urban building (Sultan Ismail Mosque, UTM) and a manufacturing plant (a chlor-alkali plant). En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1000357 [article] Holistic approach for design of minimum water networks using the mixed integer linear programming (MILP) technique [texte imprimé] / Zainatul B. Handani, Auteur ; Sharifah R. Wan Alwi, Auteur ; Haslenda Hashim, Auteur . - 2010 . - pp. 5742–5751. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5742–5751 Mots-clés : Mixed  integer  linear  programming  Fresh  water  Wastewater Résumé : Minimum fresh water consumption and wastewater generation in a facility can be achieved when all options for water minimization including source elimination, reduction, reuse/recycle, outsourcing, and regeneration have been considered. This work presents the development of a new generic mixed integer linear programming (MILP) model to holistically minimize fresh water consumption and wastewater generation for systems involving multiple contaminants where the various options for water minimization are simultaneously considered in order to ultimately generate a minimum water utilization network. The MILP model proposed in this work can be used to simultaneously generate the minimum water targets and design the minimum water network for global water-using operations for buildings and industry. This work also includes cases where fresh water concentrations for all contaminants are assumed to be either zero or non-zero. The approach has been successfully implemented in case studies involving an urban building (Sultan Ismail Mosque, UTM) and a manufacturing plant (a chlor-alkali plant). En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1000357

Optimal design of a rice mill utility system with rice husk logistic network / Lim Jeng Shiun in Industrial & engineering chemistry research, Vol. 51 N° 1 (Janvier 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 1 (Janvier 2012) . - pp. 362–373 Titre : Optimal design of a rice mill utility system with rice husk logistic network Type de document : texte imprimé Auteurs : Lim Jeng Shiun, Auteur ; Haslenda Hashim, Auteur ; Zainuddin Abdul Manan, Auteur Année de publication : 2012 Article en page(s) : pp. 362–373 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Thermal  energy  Optimal  Logistic  network Résumé : Thermal energy for drying and electricity for milling operations typically comprise a significant 55% of a rice mill operating cost. Optimal design of rice mill utility system that efficiently utilizes rice husk biomass has potential to increase profitability of rice milling industry. This paper presents a mathematical approach for simultaneous optimal planning of rice husk logistic network as well as optimal design of a rice mill utility system that efficiently utilizes rice husk supplied from various locations in order to satisfy the electricity and drying requirements of the rice mill throughout the year. A mixed integer linear programming (MILP) problem was formulated to determine: (1) the optimal logistic network for the rice husk supply, (2) the economic scale of the rice husk cogeneration system, and (3) an optimal utility supply network for a series of dryers consisting of a combination of cyclonic husk furnace (CHF) and cogeneration systems. Solution to the MILP problem yields an optimal utility system configuration consisting of a specified network of rice husk logistic network, a 15 tons boiler for the cogeneration system and 8 units of CHFs to satisfy the rice mill heat and power requirements. Compared to the baseline, the optimal utility network manages to reduce 18.5% of the total rice mill annualized cost which include the costs of capital, fuel, and electricity. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101667j [article] Optimal design of a rice mill utility system with rice husk logistic network [texte imprimé] / Lim Jeng Shiun, Auteur ; Haslenda Hashim, Auteur ; Zainuddin Abdul Manan, Auteur . - 2012 . - pp. 362–373. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 1 (Janvier 2012) . - pp. 362–373 Mots-clés : Thermal  energy  Optimal  Logistic  network Résumé : Thermal energy for drying and electricity for milling operations typically comprise a significant 55% of a rice mill operating cost. Optimal design of rice mill utility system that efficiently utilizes rice husk biomass has potential to increase profitability of rice milling industry. This paper presents a mathematical approach for simultaneous optimal planning of rice husk logistic network as well as optimal design of a rice mill utility system that efficiently utilizes rice husk supplied from various locations in order to satisfy the electricity and drying requirements of the rice mill throughout the year. A mixed integer linear programming (MILP) problem was formulated to determine: (1) the optimal logistic network for the rice husk supply, (2) the economic scale of the rice husk cogeneration system, and (3) an optimal utility supply network for a series of dryers consisting of a combination of cyclonic husk furnace (CHF) and cogeneration systems. Solution to the MILP problem yields an optimal utility system configuration consisting of a specified network of rice husk logistic network, a 15 tons boiler for the cogeneration system and 8 units of CHFs to satisfy the rice mill heat and power requirements. Compared to the baseline, the optimal utility network manages to reduce 18.5% of the total rice mill annualized cost which include the costs of capital, fuel, and electricity. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101667j