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A numerical model of an active magnetic regenerator refrigeration system. Final report.

Author(s) : ENGELBRECHT K., NELLIS G., KLEIN S.

Type of monograph: Report

Summary

This report was prepared as an account of work sponsored by ARTI under its "HVAC&R Research for the 21st Century Program". Active magnetic regenerator refrigeration (AMRR) systems are an environmentally attractive space cooling and refrigeration alternative that do not use fluorocarbon working fluids. Two recent developments have made AMRRs appear possible to implement in the near-term. A rotary regenerator bed utilizing practical and affordable permanent magnets has been demonstrated to achieve acceptable COP. Concurrently, families of magnetocaloric material alloys with adjustable Curie temperatures have been developed. Using these materials, it is possible to construct a layered regenerator bed that can achieve a high magnetocaloric effect across its entire operating range, resulting in an improved COP. Extract from the table of contents: numerical model of regenerator bed (governing equations; numerical solution algorithm; model verification; material properties; regenerator correlations: pressure drop, heat transfer; axial conduction; correction for internal temperature gradients); passive regenerator test results (experimental apparatus; comparison of model predictions with data); system modelling (optimization technique; space conditioning application; refrigeration application); parametric studies; experimental prototype system. This report can be downloaded from: www.arti-21cr.org/research/completed/finalreports.

Details

  • Original title: A numerical model of an active magnetic regenerator refrigeration system. Final report.
  • Record ID : 2005-2902
  • Languages: English
  • Publication: Arti (air-conditioning and refrigeration technology institute) - United states/United states
  • Publication date: 2005/05
  • Source: Source: ARTI-21CR-612-10075; 194 p. (21 x 29.7); fig.; tabl.; ref.; append.

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