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A general process model of sustainability / Michael Neuman in Industrial & engineering chemistry research, Vol. 50 N° 15 (Août 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 15 (Août 2011) . - pp. 8901–8904 Titre : A general process model of sustainability Type de document : texte imprimé Auteurs : Michael Neuman, Auteur Année de publication : 2011 Article en page(s) : pp. 8901–8904 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Process  model  sustainability Résumé : Sustainability is high on many research and policy agendas, and a number of specific models to measure sustainability have been developed. However, most models are based only on the first law of thermodynamics and, thereby, are incomplete and approximate. Sustainable processes are those whose rates are maintained over time without exceeding the innate ability of their surroundings to support the process. We present a model for measuring the sustainability of processes that adapts and integrates the first and second laws of thermodynamics and the concept of rate processes, thereby forming a new synthesis. The degree of sustainability of a process, whether ecological, economic, social, chemical, or biological, is expressed quantitatively in terms of algebraic equations. It is a dynamic approach that applies at any scale and takes into consideration the spatial and temporal factors of processes, thus permitting empirical applications that correspond to real world conditions (dynamic, complex, and evolving). These characteristics make it especially suitable for applications in the fields of chemistry, chemical engineering, and ecology. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1020156 [article] A general process model of sustainability [texte imprimé] / Michael Neuman, Auteur . - 2011 . - pp. 8901–8904. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 15 (Août 2011) . - pp. 8901–8904 Mots-clés : Process  model  sustainability Résumé : Sustainability is high on many research and policy agendas, and a number of specific models to measure sustainability have been developed. However, most models are based only on the first law of thermodynamics and, thereby, are incomplete and approximate. Sustainable processes are those whose rates are maintained over time without exceeding the innate ability of their surroundings to support the process. We present a model for measuring the sustainability of processes that adapts and integrates the first and second laws of thermodynamics and the concept of rate processes, thereby forming a new synthesis. The degree of sustainability of a process, whether ecological, economic, social, chemical, or biological, is expressed quantitatively in terms of algebraic equations. It is a dynamic approach that applies at any scale and takes into consideration the spatial and temporal factors of processes, thus permitting empirical applications that correspond to real world conditions (dynamic, complex, and evolving). These characteristics make it especially suitable for applications in the fields of chemistry, chemical engineering, and ecology. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1020156