Generalized irreversible heat-engine experiencing a complex heat-transfer law

Lingen Chen, Jun Li and Fengrui Sun

Applied Energy, 2008, vol. 85, issue 1, 52-60

Abstract: The fundamental optimal relation between optimal power-output and efficiency of a generalized irreversible Carnot heat-engine is derived based on a generalized heat-transfer law, including a generalized convective heat-transfer law and a generalized radiative heat-transfer law, q [is proportional to] ([Delta]Tn)m. The generalized irreversible Carnot-engine model incorporates several internal and external irreversibilities, such as heat resistance, bypass heat-leak, friction, turbulence and other undesirable irreversibility factors. The added irreversibilities, besides heat resistance, are characterized by a constant parameter and a constant coefficient. The effects of heat-transfer laws and various loss terms are analyzed. The results obtained corroborate those in the literature.

Keywords: Finite-time; thermodynamics; Entropy-generation; minimization; Irreversible; Carnot; heat-engine; Optimal; performance; Heat-transfer; law (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (1)

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