Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Optimization of a Magnetocaloric Air Conditioner Prototype
Submission Author:
Rogerio Sucaria , SC
Co-Authors:
Rogerio Sucaria, Anderson Lorenzoni, Yan Azeredo, Alan Nakashima, Guilherme Fidelis Peixer, Jaime Lozano, Jader Riso Barbosa Jr.
Presenter: Yan Azeredo
doi://10.26678/ABCM.COBEM2023.COB2023-1613
Abstract
For the last century vapor compression has been the main technology employed in refrigeration systems, even though it presents drawbacks regarding environmental impacts. To diminish the dependence on this technology and improve energy efficiency, alternative techniques have been explored. Among them, magnetic refrigeration shows some characteristics that stand out, such as the use of solid-state refrigerant, which prevents leakage of harmful substances, and the lack of gases that contribute to global warming. A functional magnetic refrigeration system is made up of four main subsystems: hydraulic management system , heat exchangers, active magnetic regenerator, and a magnetic circuit. Integration of these four subsystems results in the magnetic refrigeration unit. The focus of this work is on the MC-AMR arrangement, which consists of a rotor-stator configuration chosen mainly by its known high cooling capacities. The MC consists of two concentric cylinders that are separated by an air gap where the AMRs are allocated. Through the rotation of the rotor an oscillatory magnetic flux density is applied to each of the individual AMR beds, and with the HMS influence the four steps of the AMR cycle can be performed: magnetization, hot blow, demagnetization, and cold blow. The measured results were then used to obtain the cooling capacities and power consumption for each case tested.
Keywords
magnetic refrigeration, Active Magnetic Regenerator, Energy Efficiency
