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Thermomagnetic conversion of low-grade waste heat into electrical power

Abstract : 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.
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https://hal.univ-lorraine.fr/hal-01445940
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Georges El Achkar, Alexy Dianoux, A. Kheiri, Denis Maillet, Thomas Mazet, et al.. Thermomagnetic conversion of low-grade waste heat into electrical power. 7th European Thermal-Sciences Conference (Eurotherm2016), EUROTHERM Committee, Jun 2016, Cracovie, Poland. ⟨10.1088/1742-6596/745/3/032037⟩. ⟨hal-01445940⟩

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