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An Application of exergy accounting to five basic metal industries

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This paper aims to demonstrate that the thermodynamic quantity known as exergy provides a systematic and uniform general-purpose indicator for both materials and energy resource inputs, useful product outputs, waste products and energy losses for any industrial process. In fact, an exergy balance groups together both mass and energy flows, thus providing a concise means of characterizing any materials transformation process. It links resource analysis, industrial engineering and environmental analysis. Moreover, it can be used for assessing process efficiency, identifying potential opportunities for future technological advances. Finally, it provides a basis for first-order evaluation of the potential for harm associated with process wastes released into the environment. To demonstrate these capabilities, exergy accounts have been constructed for five metal industries: steel, aluminum, copper, lead and zinc. The results are presented in a common analytical framework, using data for the US in 1993.

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en

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application/pdf

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http://flora.insead.edu/fichiersti_wp/inseadwp2001/2001-32.pdf

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Copyright INSEAD. All rights reserved