THERMODYNAMIC FUNDAMENTALS OF EXERGY.

Research output: Contribution to specialist publicationArticle

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Abstract

Availability contains all the thermodynamic information necessary for a Second Law analysis of efficiency. Exergy introduces no new thermodynamic information, but is useful in ranking process streams according to their potential for producing useful work. Hence, it is used to treat problems that require both economic and thermodynamic analysis. The following limitations, however, should be borne in mind: (1) An environment which is in stable thermodynamic equilibrium eliminates from consideration many realistic choices of environments whose components are not in equilibrium, but are prevented to react by kinetic barriers. (2) Although thermodynamic consistency is required in the selection of an equilibrium environment, such a choice, once consistency is satisfied, is completely arbitrary, and, moreover, the results are sensitive to the stable components selected.

Original languageEnglish (US)
Pages116-121
Number of pages6
Volume18
No3
Specialist publicationChemical Engineering Education
StatePublished - Jan 1 1984
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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