Application of nonequilibrium thermodynamics in second law analysis

Journal Article · Fri Mar 01 04:00:00 EST 1991 · Journal of Energy Resources Technology; (United States)

DOI:https://doi.org/10.1115/1.2905777· OSTI ID:5329303

Sun, Z F; Carrington, C G ^[1]

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1. Dept. of Physics, Univ. of Otago, Dunedin (NZ)

This paper examines the exergy balance of a multi-component fluid subject to viscous dissipation processes, heat transfer by conduction, heat transfer by radiation, matter diffusion and chemical reactions. The differential equations for exergy balance in the fluid formalize the relationship between the exergy input/output approach to second law analysis and the entropy generation procedure using the Gouy-Stodola theorem. The balance relations for mass, momentum, energy and entropy are used to establish the validity conditions for the exergy balance equations. In particular, the authors define the role and significance of the assumption of local thermodynamic equilibrium. The general functions and restrictions of nonequilibrium thermodynamics within second law analysis are also discussed.

• OSTI ID: 5329303
• Journal Information: Journal of Energy Resources Technology; (United States), Journal Name: Journal of Energy Resources Technology; (United States) Vol. 113:1; ISSN 0195-0738; ISSN JERTD
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
CHEMICAL REACTION KINETICS
DIFFERENTIAL EQUATIONS
ENERGY
ENERGY TRANSFER
ENTROPY
EQUATIONS
FLUIDS
HEAT TRANSFER
KINETICS
PHYSICAL PROPERTIES
REACTION KINETICS
THERMODYNAMIC PROPERTIES
THERMODYNAMICS