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Advisor(s)
Abstract(s)
Este trabalho foi efectuado com o propósito de interpretar, compreender e explicar algumas ferramentas de simulação de processos, em particular o Aspen Energy Analyzer (AEA), o Aspen Economic Evaluation (AEE) e o seu funcionamento integrado com o Aspen Hysys(AH).
O AH é uma ferramenta de modelação de processos para a concepção de projectos de
engenharia química, o AEA é uma ferramenta de modelação de redes de integração
energética. O AEE integrado no AH é uma ferramenta que permite incorporar estudos
económicos numa fase preliminar do desenvolvimento de um projecto de engenharia.
A abordagem a este trabalho foi efectuada através do estudo de Casos.
O Caso I foi baseado na resolução de um problema no AEA através da construção e
optimização de uma rede de permutadores de calor. Os Casos II e III foram baseados na
construção de um flowsheet de produção de Benzeno e de Cloreto de Vinil,
respectivamente, e cada Caso foi dividido em dois cenários diferentes. Para o efeito foram
utilizados os softwares AEA para a integração energética dos processos, o AH para construção do fluxograma do processo e o AEE para os estudos económicos dos diferentes
cenários.
Finalmente, os Casos IV e V dizem respeito à resolução de um problema de integração
energética. O Caso IV foi baseado num problema de optimização da rede de permutadores
através do aumento da sua área. Já o Caso V foi baseado na informação inicial das
correntes do caso anterior e em dois cenários diferentes, nos quais foi estudada a influência
dos preços das utilidades na construção da rede de permutadores.
A conclusão foi que as ferramentas de modelação, particularmente o AH, o AEA e o AEE são uma mais-valia extraordinária para ajudar o utilizador na tomada de decisões em fases bastante preliminares da engenharia de processos.
This thesis aims to interpret, understand and explain some of the process simulation tools, in particular Aspen Energy Analyzer (EEA) and Aspen Economic Evaluation (AEE) integrated with the Aspen Hysys (AH). AH is a modeling process tool for designing chemical engineering projects and AEA is a modeling tool for energy integration networks. The AEE integrated in AH allows the integration of rigorous economic studies at an early stage of the development of an engineering project. This work comprises some case studies (examples). Case I was based on solving a problem in AEA through the construction and optimization of a heat exchangers network. Cases II and III were based on the conception of a benzene and vinyl chloride flowsheet production, respectively, and each case was divided into two different scenarios. To this end we used the AEA softwares for process energy integration, AH to make a flow diagram process and AEE for economic studies of different scenarios. Finally in Cases IV and V we try to solve an energyintegration problem. Case IV was based on a hypothetical optimization problem of the heat exchangers network through the increase of its area. Case V was based on the initial information of the previous case streams and in two different scenarios, in which was studied the influence of utilities prices when making a heat exchangers network. We conclude that modeling tools in particular AH, AEA and AEE are an extraordinary added value that helps the user in the decision-making process at an early stage of engineering processes.
This thesis aims to interpret, understand and explain some of the process simulation tools, in particular Aspen Energy Analyzer (EEA) and Aspen Economic Evaluation (AEE) integrated with the Aspen Hysys (AH). AH is a modeling process tool for designing chemical engineering projects and AEA is a modeling tool for energy integration networks. The AEE integrated in AH allows the integration of rigorous economic studies at an early stage of the development of an engineering project. This work comprises some case studies (examples). Case I was based on solving a problem in AEA through the construction and optimization of a heat exchangers network. Cases II and III were based on the conception of a benzene and vinyl chloride flowsheet production, respectively, and each case was divided into two different scenarios. To this end we used the AEA softwares for process energy integration, AH to make a flow diagram process and AEE for economic studies of different scenarios. Finally in Cases IV and V we try to solve an energyintegration problem. Case IV was based on a hypothetical optimization problem of the heat exchangers network through the increase of its area. Case V was based on the initial information of the previous case streams and in two different scenarios, in which was studied the influence of utilities prices when making a heat exchangers network. We conclude that modeling tools in particular AH, AEA and AEE are an extraordinary added value that helps the user in the decision-making process at an early stage of engineering processes.
Description
Keywords
Aspen hysys Aspen energy analyzer Aspen economic evaluation Integração energética Modelação Simulação Heat integration Modeling Simulation
Citation
Rafael, Jorge Miguel Barata Farinha - Aplicação de ferramentas de simulação de processos. Lisboa: Instituto Superior de Engenharia de Lisboa, 2011. Dissertação de mestrado.