Minimal entropy production in systems under constraint

1978 ◽  
Vol 74 ◽  
pp. 115 ◽  
Author(s):  
Gerhard Dickel ◽  
Gerhard Backhaus
Keyword(s):  
Entropy Production ◽  
Minimal Entropy Production

On Master Operators with Extremal Entropy Production

1978 ◽  
Vol 33 (10) ◽  
pp. 1122-1132
Author(s):  
O. Seeberg
Keyword(s):  
Entropy Production ◽  
Maximal Entropy ◽  
Extremal Points ◽  
Minimal Entropy Production

Abstract The master operators B which cause the entropy production dH/dt = - k-1 dS/dt to become extremal for fixed statistical operators W are constructed and discussed. There are boundaries of the set B of master operators, B = {B | Σ B2vu = b} for which the problem is solvable yielding minimal entropy production, while no solution exists in the set B without any constraints. Operators with maximal entropy production must be extremal points of B.

scholarly journals Minimal Entropy Production and Efficiency of Energy Conversion in Nonlinear Thermoelectric Systems with Two Temperatures

2017 ◽  
Vol 42 (3) ◽  
Author(s):  
Patrizia Rogolino ◽  
Antonio Sellitto ◽  
Vito Antonio Cimmelli
Keyword(s):  
Energy Conversion ◽  
Entropy Production ◽  
Physical Conditions ◽  
Thermoelectric Systems ◽  
Two Temperatures ◽  
Optimal Efficiency ◽  
Minimal Entropy Production

AbstractIn this paper we determine the physical conditions ensuring that the efficiency of a thermoelectric nanowire with two temperatures is optimal. We consider the case in which the entropy for unitary volume depends on the equilibrium variables only, and the case in which such a quantity depends on the dissipative fluxes, too. We prove that in these two different situations the conditions of optimal efficiency are different.

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