Title: A numerical model of an Active Magnetic Regenerator for refrigeration at room temperature

Authors: Ciro Aprea, Angelo Maiorino, Rita Mastrullo

Addresses: Department of Mechanical Engineering, University of Salerno, Via Ponte Don Melillo 1, 84084 Fisciano (Salerno), Italy. ' Department of Mechanical Engineering, University of Salerno, Via Ponte Don Melillo 1, 84084 Fisciano (Salerno), Italy. ' DETEC, University of Naples Federico II, P.le Tecchio 80, 80125 Napoli, Italy

Abstract: In this paper, a numerical model of an Active Magnetic Regenerator (AMR) for refrigeration at room temperature has been evaluated. The model is based on the equation of state of a homogeneous ferromagnetic with reference to the gadolinium used as magnetocaloric substance. In this way the curves of the magnetisation and of the specific heat at constant magnetic field and of the adiabatic temperature variation for the gadolinium subject to a variable magnetic field have been obtained using the Brillouin function.

Keywords: magnetocaloric effect; magnetic refrigeration; entropy; gadolinium; mathematical model; active magnetic regenerator; magnetisation; specific heat; environmental impact; environmental technology.

DOI: 10.1504/IJETM.2007.013240

International Journal of Environmental Technology and Management, 2007 Vol.7 No.1/2, pp.113 - 133

Published online: 13 Apr 2007 *

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