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Entropy generation: Minimum inside and maximum outside

Lucia, Umberto - In: Physica A: Statistical Mechanics and its Applications 396 (2014) C, pp. 61-65

The extremum of entropy generation is evaluated for both maximum and minimum cases using a thermodynamic approach which is usually applied in engineering to design energy transduction systems. A new result in the thermodynamic analysis of the entropy generation extremum theorem is proved by the...

Persistent link: https://www.econbiz.de/10010730356

Stationary open systems: A brief review on contemporary theories on irreversibility

Lucia, Umberto - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 5, pp. 1051-1062

entropy production rate and the maximum entropy production, useful in the analysis of dissipation and irreversibility of …, dissipation and irreversibility are analyzed using the entropy generation, for which there exist two principle of extrema too, the …

Persistent link: https://www.econbiz.de/10010872144

Entropy and exergy in irreversible renewable energy systems

Lucia, Umberto - In: Renewable and Sustainable Energy Reviews 20 (2013) C, pp. 559-564

Exergy and entropy generation analysis of the open systems allows to obtain a measure of how far the open real systems deviate from equilibrium with their environment. A link between entropy generation maximum principle and the exergy analysis of engineering and natural systems is suggested in...

Persistent link: https://www.econbiz.de/10010617110

Quanta and entropy generation

Lucia, Umberto - In: Physica A: Statistical Mechanics and its Applications 419 (2015) C, pp. 115-121

Is there a link between the macroscopic description of the irreversibility and microscopic behaviour of the systems … irreversibility. The analysis developed in this paper points out that the principle of maximum of entropy generation and the least … can be related to the extremum entropy generation theorem. Irreversibility is the result of the interaction between …

Persistent link: https://www.econbiz.de/10011117895

Irreversibility and entropy production in transport phenomena I

Suzuki, Masuo - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 11, pp. 1904-1916

of an external force, in order to manifest the irreversibility of transport phenomena. New schemes of steady states are …-derivative representation method to reveal the irreversibility of steady states is also proposed. The present derivation of entropy production … clarifies conceptually the physics of irreversibility in transport phenomena, using the symmetry of non-equilibrium states, and …

Persistent link: https://www.econbiz.de/10011057301

Irreversibility and entropy production in transport phenomena, IV: Symmetry, integrated intermediate processes and separated variational principles for multi-currents

Suzuki, Masuo - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 19, pp. 4279-4287

The mechanism of entropy production in transport phenomena is discussed again by emphasizing the role of symmetry of non-equilibrium states and also by reformulating Einstein’s theory of Brownian motion to derive entropy production from it. This yields conceptual reviews of the previous papers...

Persistent link: https://www.econbiz.de/10011058971

Irreversibility and entropy production in transport phenomena, II: Statistical–mechanical theory on steady states including thermal disturbance and energy supply

Suzuki, Masuo - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 4, pp. 1074-1086

Some general aspects of nonlinear transport phenomena are discussed on the basis of two kinds of formulations obtained by extending Kubo’s perturbational scheme of the density matrix and Zubarev’s non-equilibrium statistical operator formulation. Both formulations are extended up to infinite...

Persistent link: https://www.econbiz.de/10011061967

Irreversibility and entropy production in transport phenomena, III—Principle of minimum integrated entropy production including nonlinear responses

Suzuki, Masuo - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 2, pp. 314-325

A new variational principle of steady states is found by introducing an integrated type of energy dissipation (or entropy production) instead of instantaneous energy dissipation. This new principle is valid both in linear and nonlinear transport phenomena. Prigogine’s dream has now been...

Persistent link: https://www.econbiz.de/10011063871

Irreversibility, entropy and incomplete information

Lucia, Umberto - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 19, pp. 4025-4033

The open system has been proved to be a system with perfect accessibility represented as a probability space in which is defined a PA-measure. But, the PA-measure is not yet known; consequently, it is difficult to develop the statistical thermodynamics for an irreversible system. Here its...

Persistent link: https://www.econbiz.de/10010588501

Maximum entropy generation and κ-exponential model

Lucia, Umberto - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 21, pp. 4558-4563

An increasing number of natural phenomena appear to deviate from standard statistical distributions. It has kindled interest in alternative formulation of statistical mechanics which should preserve most of the mathematical structures of the Boltzmann–Gibbs theory, while reproducing the...

Persistent link: https://www.econbiz.de/10011062279

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