Dresden 2014 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 3: Statistical Physics far from Thermal Equilibrium - Part I

DY 3.4: Vortrag

Montag, 31. März 2014, 10:15–10:30, ZEU 160

Extensions to Endoreversible Modelling — •Katharina Wagner and Karl Heinz Hoffmann — Technische Universität Chemnitz

In endoreversible thermodynamics irreversible processes and systems are split into reversible subsystems and interactions in between them. The irreversibilities are completely described by the interactions between the reversible subsystems. Interactions consist of two fluxes, i. e. energy and an extensive quantity, and are characterized by transport laws.

The standard formalism [1] is extended to model mass fluxes with more than one extensive quantity as carrier for the energy, since the different extensive quantities are usually not independent and need to be treated together. Irreversible systems with gases, like pressure regulators or throttles, are presented to demonstrate endoreversible modelling and quantification of entropy production in the model.

[1] Hoffmann, K. H., Burzler, J. M. and Schubert, S., J. Non-Equilib. Thermodyn. Vol. 22, 1997, No. 4