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DY: Fachverband Dynamik und Statistische Physik

DY 73: Poster: Networks, Chimera, Energy Systems

DY 73.10: Poster

Donnerstag, 15. März 2018, 15:30–18:00, Poster A

Thermodynamic modelling of a Vuilleumier refrigerator — Abdellah Khodja, •Raphael Paul, and Karl Heinz Hoffmann — Technische Universität Chemnitz, Institut für Physik, 09107 Chemnitz, Germany

The Vuilleumier machine is a thermodynamic device which can act as both, heat pump and refrigerator. The working principle is based on the gas displacement between three different temperature niveaus by two gas displacers. Thus, no further working pistons are required. We develop a thermodynamic model of the Vuilleumier refrigerator in the context of endoreversible thermodynamics. The model is based on empirical transport laws which enable a simplified description of the complex transport phenomena and flow properties. The influence of several parameters on the cooling performance is studied.