Documents disponibles écrits par cet auteur

Automated targeting technique for batch process integration / Dominic Chwan Yee Foo in Industrial & engineering chemistry research, Vol. 49 N° 20 (Octobre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 20 (Octobre 2010) . - pp. 9899–9916 Titre : Automated targeting technique for batch process integration Type de document : texte imprimé Auteurs : Dominic Chwan Yee Foo, Auteur Année de publication : 2011 Article en page(s) : pp. 9899–9916 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Targeting  Batch  process Résumé : A new targeting technique is proposed in this work to determine the minimum resource and waste targets for batch process integration problems. The technique, which is generic in nature, handles fixed-schedule batch heat and mass exchange, as well as water networks equally well. Even though the technique is formulated as a mathematical optimization model, the concept, which is built on the insight-based pinch analysis technique, enables the minimum resource/cost targets to be identified prior to detailed design. Five examples are solved to demonstrate the newly developed technique. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100146n [article] Automated targeting technique for batch process integration [texte imprimé] / Dominic Chwan Yee Foo, Auteur . - 2011 . - pp. 9899–9916. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 20 (Octobre 2010) . - pp. 9899–9916 Mots-clés : Targeting  Batch  process Résumé : A new targeting technique is proposed in this work to determine the minimum resource and waste targets for batch process integration problems. The technique, which is generic in nature, handles fixed-schedule batch heat and mass exchange, as well as water networks equally well. Even though the technique is formulated as a mathematical optimization model, the concept, which is built on the insight-based pinch analysis technique, enables the minimum resource/cost targets to be identified prior to detailed design. Five examples are solved to demonstrate the newly developed technique. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100146n

Automated targeting technique for single-impurity resource conservation networks. Part 1: direct reuse/recycle / Denny Kok Sum Ng in Industrial & engineering chemistry research, Vol. 48 N° 16 (Août 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 16 (Août 2009) . - pp. 7637–7646 Titre : Automated targeting technique for single-impurity resource conservation networks. Part 1: direct reuse/recycle Type de document : texte imprimé Auteurs : Denny Kok Sum Ng, Auteur ; Dominic Chwan Yee Foo, Auteur Année de publication : 2009 Article en page(s) : pp. 7637–7646 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Automated  targeting  technique  Single-impurity  resource  conservation  network  Targeting  technique Résumé : This pair of articles presents an optimization-based, automated procedure to determine the minimum resource consumption/target(s) for a single-impurity resource conservation network (RCN). This optimization-based targeting technique provides the same benefits as conventional insight-based pinch analysis, in yielding various targets for an RCN prior to detailed design. In addition, flexibility in setting the objective function is the major advantage of the automated targeting approach over a conventional pinch analysis technique. The model formulation is linear, which ensures that a global optimum can be found if one exists. In part 1 of this pair of articles, the model for direct material reuse/recycle is presented. Its application is then demonstrated for single, multiple, and impure external resources using several literature examples. Part 2 of this pair of articles extends the automated targeting technique for RCNs with waste-interception (regeneration) placement. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900120y [article] Automated targeting technique for single-impurity resource conservation networks. Part 1: direct reuse/recycle [texte imprimé] / Denny Kok Sum Ng, Auteur ; Dominic Chwan Yee Foo, Auteur . - 2009 . - pp. 7637–7646. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 16 (Août 2009) . - pp. 7637–7646 Mots-clés : Automated  targeting  technique  Single-impurity  resource  conservation  network  Targeting  technique Résumé : This pair of articles presents an optimization-based, automated procedure to determine the minimum resource consumption/target(s) for a single-impurity resource conservation network (RCN). This optimization-based targeting technique provides the same benefits as conventional insight-based pinch analysis, in yielding various targets for an RCN prior to detailed design. In addition, flexibility in setting the objective function is the major advantage of the automated targeting approach over a conventional pinch analysis technique. The model formulation is linear, which ensures that a global optimum can be found if one exists. In part 1 of this pair of articles, the model for direct material reuse/recycle is presented. Its application is then demonstrated for single, multiple, and impure external resources using several literature examples. Part 2 of this pair of articles extends the automated targeting technique for RCNs with waste-interception (regeneration) placement. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900120y

Automated targeting technique for single-impurity resource conservation networks. Part 2: single-pass and partitioning waste-interception systems / Denny Kok Sum Ng in Industrial & engineering chemistry research, Vol. 48 N° 16 (Août 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 16 (Août 2009) . - pp. 7647–7661 Titre : Automated targeting technique for single-impurity resource conservation networks. Part 2: single-pass and partitioning waste-interception systems Type de document : texte imprimé Auteurs : Denny Kok Sum Ng, Auteur ; Dominic Chwan Yee Foo, Auteur Année de publication : 2009 Article en page(s) : pp. 7647–7661 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Resource  conservation  network  Automated  targeting  technique  Waste-interception  systems Résumé : Part 1 of this pair of articles presents an automated targeting technique to identify minimum fresh resource flow rate/cost targets in a resource conservation network (RCN) with material reuse/recycle. After the potential for conservation through direct reuse/recycle is exhausted, fresh resource consumption can be further reduced by incorporating waste-interception (regeneration) processes. Hence, the proposed automated targeting technique in part 1 of this pair of articles is extended to determine the targets for RCNs with interception placement. The waste-interception systems are modeled as treatment processes with either fixed outlet concentrations or fixed impurity load removal ratios. The approach also distinguishes between single-pass and partitioning regenerators, which have different implications for RCNs. Literature examples and industrial cases are solved to illustrate the proposed approach. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900127r [article] Automated targeting technique for single-impurity resource conservation networks. Part 2: single-pass and partitioning waste-interception systems [texte imprimé] / Denny Kok Sum Ng, Auteur ; Dominic Chwan Yee Foo, Auteur . - 2009 . - pp. 7647–7661. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 16 (Août 2009) . - pp. 7647–7661 Mots-clés : Resource  conservation  network  Automated  targeting  technique  Waste-interception  systems Résumé : Part 1 of this pair of articles presents an automated targeting technique to identify minimum fresh resource flow rate/cost targets in a resource conservation network (RCN) with material reuse/recycle. After the potential for conservation through direct reuse/recycle is exhausted, fresh resource consumption can be further reduced by incorporating waste-interception (regeneration) processes. Hence, the proposed automated targeting technique in part 1 of this pair of articles is extended to determine the targets for RCNs with interception placement. The waste-interception systems are modeled as treatment processes with either fixed outlet concentrations or fixed impurity load removal ratios. The approach also distinguishes between single-pass and partitioning regenerators, which have different implications for RCNs. Literature examples and industrial cases are solved to illustrate the proposed approach. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900127r

State-of-the-art review of pinch analysis techniques for water network synthesis / Dominic Chwan Yee Foo in Industrial & engineering chemistry research, Vol. 48 N° 11 (Juin 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5125–5159 Titre : State-of-the-art review of pinch analysis techniques for water network synthesis Type de document : texte imprimé Auteurs : Dominic Chwan Yee Foo, Auteur Année de publication : 2009 Article en page(s) : pp. 5125–5159 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Water  network  synthesis  Insight-based  techniques  Flow  rate  problems. Résumé : Water network synthesis has been an active area of research for the past one and a half decades. Many think that the technology reached a mature stage in the late 1990s, especially for the insight-based technique based on pinch analysis. The only review for the field dates back to 2000. However, many new papers published in this century reveal that new research gaps are found and more works were carried out to address the limitations of the “old” techniques. The main objective of this review is to provide a state-of-the-art overview of the insight-based techniques developed in the 21st century, particularly those developed for single impurity network of the fixed flow rate problems. Comparisons were also made between these recent techniques and those developed for the fixed load problems in the past century. Various flow rate targeting techniques developed for water reuse/recycle, regeneration, and wastewater treatment are reviewed in detail, along with the network design techniques that achieve the established targets. Finally, future research directions are outlined at the end of the review. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801264c [article] State-of-the-art review of pinch analysis techniques for water network synthesis [texte imprimé] / Dominic Chwan Yee Foo, Auteur . - 2009 . - pp. 5125–5159. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5125–5159 Mots-clés : Water  network  synthesis  Insight-based  techniques  Flow  rate  problems. Résumé : Water network synthesis has been an active area of research for the past one and a half decades. Many think that the technology reached a mature stage in the late 1990s, especially for the insight-based technique based on pinch analysis. The only review for the field dates back to 2000. However, many new papers published in this century reveal that new research gaps are found and more works were carried out to address the limitations of the “old” techniques. The main objective of this review is to provide a state-of-the-art overview of the insight-based techniques developed in the 21st century, particularly those developed for single impurity network of the fixed flow rate problems. Comparisons were also made between these recent techniques and those developed for the fixed load problems in the past century. Various flow rate targeting techniques developed for water reuse/recycle, regeneration, and wastewater treatment are reviewed in detail, along with the network design techniques that achieve the established targets. Finally, future research directions are outlined at the end of the review. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801264c

Water minimization techniques for batch processes / Jacques F. Gouws in Industrial & engineering chemistry research, Vol. 49 N° 19 (Octobre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 19 (Octobre 2010) . - pp. 8877–8893 Titre : Water minimization techniques for batch processes Type de document : texte imprimé Auteurs : Jacques F. Gouws, Auteur ; Thokozani Majozi, Auteur ; Dominic Chwan Yee Foo, Auteur Année de publication : 2010 Article en page(s) : pp. 8877–8893 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Water  minimization  Continuous  processes Résumé : Water minimization in the process industry is becoming increasingly important as environmental legislation becomes increasingly stringent and the awareness of the impact of industrial activities on the environment increases. Much work has been done on water minimization in continuous processes as evidenced by the detailed reviews of Bagajewicz (2000) and Foo (2009). Although water minimization for batch processes (batch water network in short) has been ignored in the past, it is steadily gaining more attention in research. An overview of the developments and methodologies proposed for batch water network is presented. The methodologies for water minimization can roughly be divided into insight-based and mathematical techniques. The former always consists of a two-step approach (targeting and design) in synthesizing a batch water network that features the minimum freshwater and wastewater flows for a given production schedule. The mathematical techniques, on the other hand, may be categorized into two subsectors, that is, with and without scheduling consideration. In this review, various water minimization methodologies are discussed and comparisons are made among them. When necessary, they are illustrated through examples. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100130a [article] Water minimization techniques for batch processes [texte imprimé] / Jacques F. Gouws, Auteur ; Thokozani Majozi, Auteur ; Dominic Chwan Yee Foo, Auteur . - 2010 . - pp. 8877–8893. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 19 (Octobre 2010) . - pp. 8877–8893 Mots-clés : Water  minimization  Continuous  processes Résumé : Water minimization in the process industry is becoming increasingly important as environmental legislation becomes increasingly stringent and the awareness of the impact of industrial activities on the environment increases. Much work has been done on water minimization in continuous processes as evidenced by the detailed reviews of Bagajewicz (2000) and Foo (2009). Although water minimization for batch processes (batch water network in short) has been ignored in the past, it is steadily gaining more attention in research. An overview of the developments and methodologies proposed for batch water network is presented. The methodologies for water minimization can roughly be divided into insight-based and mathematical techniques. The former always consists of a two-step approach (targeting and design) in synthesizing a batch water network that features the minimum freshwater and wastewater flows for a given production schedule. The mathematical techniques, on the other hand, may be categorized into two subsectors, that is, with and without scheduling consideration. In this review, various water minimization methodologies are discussed and comparisons are made among them. When necessary, they are illustrated through examples. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100130a