Energy, exergy, and Second Law performance criteria

Noam Lior and Na Zhang

Energy, 2007, vol. 32, issue 4, 281-296

Abstract: Performance criteria, such as efficiencies and coefficients of performance, for energy systems, are commonly used but often without sufficient understanding and consistence. The situation becomes particularly incoherent when simultaneous energy interactions of different types, such as work, heating and cooling, take place with a system. Also, the distinction between exergy and Second Law efficiencies is not clearly recognized by many. It is attempted here to clarify the definitions and use of energy and exergy based performance criteria, and of the Second Law efficiency, with an aim at the advancement of international standardization of these important concepts.

Keywords: Thermodynamics; Efficiency; Exergy; Second Law; Performance (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (50)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:32:y:2007:i:4:p:281-296

DOI: 10.1016/j.energy.2006.01.019

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