# Study on Thermomagnetic Conversion of Low-grade Waste Heat into Electrical Power

This chapter presents a theoretical analysis based on the thermal modelling of a Curie wheel, which is used to convert low-grade waste heat into electrical power. It enables designers to better understand the thermal behaviour of a Curie wheel in steady-state operation. A stationary one-dimensional analytical thermal model based on a Lagrangian technique was created to achieve this goal. It enables the determination of the temperature distribution in a magnetocaloric material exposed to a periodic sinusoidal heat source throughout time. The impacts of several parameters (the nature of the magnetocaloric material, the nature and temperature of the fluid) were determined and analysed using this model.

Author (S) Details

G. El Achkar
International Centre in Fundamental and Engineering Thermophysics, Tianjin University of Commerce, Guangrong Rd 409, Beichen District, Tianjin, 300134, China.

A. Dianoux
IJL, UMR CNRS 7198, Universite de Lorraine, BP 70239, 54506 Vandoeuvre-l ´ es-Nancy Cedex,  France.

A. Kheiri
LEMTA, UMR CNRS 7563, Universite de Lorraine, 2 avenue de la For ´ et de Haye, TSA 60604, 54518 ˆ Vandoeuvre-les-Nancy Cedex, France.

D. Maillet
LEMTA, UMR CNRS 7563, Universite de Lorraine, 2 avenue de la For ´ et de Haye, TSA 60604, 54518 ˆ Vandoeuvre-les-Nancy Cedex, France.

T. Mazet
IJL, UMR CNRS 7198, Universite de Lorraine, BP 70239, 54506 Vandoeuvre-l ´ es-Nancy Cedex,  France.

S. Colasson
LSED, Commissariat a l’Energie Atomique et aux  energies alternatives, 17 rue des Martyrs, 38054 ´ Grenoble Cedex 9, France.

M. Feidt
LEMTA, UMR CNRS 7563, Universite de Lorraine, 2 avenue de la For ´ et de Haye, TSA 60604, 54518 ˆ Vandoeuvre-les-Nancy Cedex, France.