An efficient numerical scheme for the simulation of parallel-plate active magnetic regenerators

Bárbara Torregrosa-Jaime, José M. Corberán, Jorge Payá, Kurt Engelbrecht

Research output: Contribution to journalJournal articleResearchpeer-review

539 Downloads (Pure)

Abstract

A one-dimensional model of a parallel-plate active magnetic regenerator (AMR) is presented in this work. The model is based on an efficient numerical scheme which has been developed after analysing the heat transfer mechanisms in the regenerator bed. The new finite difference scheme optimally combines explicit and implicit techniques in order to solve the one-dimensional conjugate heat transfer problem in an accurate and fast manner while ensuring energy conservation. The present model has been thoroughly validated against passive regenerator cases with an analytical solution. Compared to the fully implicit scheme, the proposed scheme achieves more accurate results, prevents numerical errors and requires less computational effort. In AMR simulations the new scheme can reduce the computational time by 88%.
Original languageEnglish
JournalInternational Journal of Refrigeration
Volume58
Pages (from-to)121-130
ISSN0140-7007
DOIs
Publication statusPublished - 2015

Keywords

  • Regenerator
  • Modelling
  • Simulation
  • Magnetic refrigerator
  • Finite differences

Fingerprint Dive into the research topics of 'An efficient numerical scheme for the simulation of parallel-plate active magnetic regenerators'. Together they form a unique fingerprint.

Cite this