Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Designing an active magnetic regenerator for a fixed magnetic circuit
Submission Author:
Guilherme Fidelis Peixer , SC , Brazil
Co-Authors:
Guilherme Fidelis Peixer, Jaime Lozano, Jader Riso Barbosa Jr.
Presenter: Guilherme Fidelis Peixer
doi://10.26678/ABCM.COBEM2017.COB17-1773
Abstract
Magnetic refrigeration presents itself as one of the most promising emerging technologies for application in heat pumps and cooling systems. The Active Magnetic Regenerator (AMR) has been studied by numerous works and the importance of this component to the performance of magnetic refrigerator devices is well established. The aim of the present work is to numerically evaluate the effect of the regenerator geometry and system operating conditions on the performance of a magnetic refrigeration device. The applied magnetic field waveform is taken as an input to the model, and a practical outcome of this study will be the design of a more efficient active magnetic regenerator for an existing prototype developed at Polo/UFSC. Improvements in terms of the power consumption of a novel electrovalves manifold and an upgraded drive system were also considered. The analysis resulted in a regenerator composed of 11 beds, capable of providing 76 W of cooling capacity for a system temperature span of 15 K and a COP of 0.8. Improvements on the power consumption of the electrovalves and the drive system could lead to a significant enhancement in the COP, particularly for low utilization factors.
Keywords
magnetic refrigeration, active magnetic regenerator
