Towards a consistent thermodynamic model of magnetocaloric material from experimental characterization

Morgan Almanza (1, 2) , Afef Kedous-Lebouc (2) , Vincent Hardy (3) , Salvatore Miraglia (1)

1 NEEL - MRS - Matériaux, Rayonnements, Structure
2 G2ELab - Laboratoire de Génie Electrique de Grenoble
3 CRISMAT - Laboratoire de cristallographie et sciences des matériaux

Magnetocaloric material (MCM) measurements and data treatments are essential for modeling and developing magnetic refrigeration system. The paper discusses the thermodynamic relevance of the material model considered and proposes a suitable strategy. Models consistent with thermodynamics are essential for computation of coefficient of performance (COP) of refrigeration system. The study is supported by the knowledge of intrinsic material characteristics and analyses of thermodynamic behaviors. It is applied on a second order phase transition material Pr_0.65 ⁡Sr_0.35 MnO_3

Domaines: Energie électrique

Morgan Almanza, Afef Kedous-Lebouc, Vincent Hardy, Salvatore Miraglia. Towards a consistent thermodynamic model of magnetocaloric material from experimental characterization. 6th IIR/IIF International Conference on Magnetic Refrigeration THERMAG VI, Sep 2014, Victoria, Canada. ⟨hal-01066032⟩