Thermomagnetic conversion of low-grade waste heat into electrical power

A theoretical study relying on the thermal modelling of a Curie wheel, used for the conversion of low-grade waste heat into electrical power, is presented in this paper. It allows understanding the thermal behaviour of a Curie wheel operating in steady state in order to optimise its design. To this...

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Bibliographic Details
Main Authors: Achkar, G El, Dianoux, A, Kheiri, A, Maillet, D, Mazet, T, Colasson, S, Feidt, M, Rado, C, Servant, F, Paul-Boncour, V
Format: Conference Proceeding
Language:English
Subjects:
Conversion
Curie wheel
Design optimization
Dimensional analysis
Heat
Magnetic materials
magnetocaloric material
modeling
Physics
Thermal analysis
thermal and magnetic coupling
Thermodynamic properties
Waste heat
waste heat conversion
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Summary:A theoretical study relying on the thermal modelling of a Curie wheel, used for the conversion of low-grade waste heat into electrical power, is presented in this paper. It allows understanding the thermal behaviour of a Curie wheel operating in steady state in order to optimise its design. To this end, a stationary one-dimensional analytical thermal model, based on a Lagrangian approach, was developed. It allows determining the local distribution over time of the temperature in the magnetocaloric material exposed to a periodic sinusoidal heat source. Thanks to this model, the effects of different parameters (nature of the magnetocaloric material, nature and temperature of the fluid) were highlighted and studied.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/745/3/032037