Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
Analytical model of the magnetic field generated by nested infinite Halbach cylinders
Submission Author:
Fábio Pinto Fortkamp , SC
Co-Authors:
Jader Riso Barbosa Jr., Jaime Lozano
Presenter: Fábio Pinto Fortkamp
doi://10.26678/ABCM.ENCIT2016.CIT2016-0220
Abstract
Halbach cylinders have been used in recent state-of-the-art magnetic refrigerators as the source of magnetic fields. This paper presents the analytical modeling and solution of the magnetic field generated in the magnetic gap between two concentric infinite Halbach cylinders, adapted from the previous works from the literature. The proposed magnetic circuit shows two magnetic poles and will be optimized to improve its performance. The two Halbach cylinders are assumed to be built using Nd-Fe-B permanent magnets. Calculations were made varying the radii of both magnets to understand their effect, while focusing on the influence of the air gap height.
Keywords
magnetic refrigeration, permanent magnet, active magnetic regenerator, magnetocaloric effect, Halbach cylinder, magnetic refrigeration, permanent magnet, active magnetic regenerator, magnetocaloric effect, Halbach cylinder
