Ferramenta para tomada de decisão considerando a interação dos sistemas de produção e o meio ambiente
Decision-making tool considering the interaction of the production systems and the environment
Barrella, Flávio A.; Almeida, Cecilia M. Villas Bôas de; Giannetti, Biagio F.
http://dx.doi.org/10.1590/S0103-65132005000100008
Prod, vol.15, n1, p.87-101, 2005
Resumo
Diagramas ternários são apresentados como ferramenta gráfica no auxílio da contabilidade ambiental e tomada de decisões ambientais baseadas na análise emergética. Além de inquestionáveis vantagens da interpretação gráfica sobre análise de tabelas, o uso dos diagramas ternários, largamente empregados para a avaliação da físico-química de diagrama de fases para sistemas de três componentes, permite o uso das propriedades do diagrama de fases para avaliação da dependência dos sistemas sobre entradas renováveis e não-renováveis e a avaliação do suporte ambiental para diluição e redução de emissões dos processos e da eficiência dos sistemas. A imediata visualização dos dados da contabilidade emergética permite a comparação de processos e sistemas com e sem serviços dos ecossistemas, para avaliar melhorias e acompanhamento do desempenho dos sistemas ao longo do tempo. Com a objetividade dos diagramas ternários, aspectos como a interação entre sistemas e a interação entre sistemas e meio ambiente podem ser prontamente reconhecidos e avaliados.
Palavras-chave
Sistemas de produção, ferramenta gráfica, diagrama ternário, sustentabilidade
Abstract
Ternary diagrams are presented as graphic tools to assist environmental accounting and environmental decision-making based on emergy analysis. Besides the unquestionable advantages of graphic interpretation over table analysis, the use of ternary diagrams, widely used for physical chemistry evaluation of three components systems, or three components phase diagrams, permits the use of phase diagrams properties to assess the dependence of the system upon renewable and non renewable inputs, the environmental support for dilution and abatement of process emissions and the system efficiency. The prompt visualization of the emergy accounting data makes possible to compare processes and systems with and without ecosystem services, to evaluate improvements and to follow the system performance over time. With the aim of ternary diagrams, aspects such as the interaction between systems and the interactions between systems and the environment can be readily recognized and evaluated.
Keywords
Production systems, graphic tool, ternary diagram, sustainability
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