Numerical Modeling of Multi-Material Active Magnetic Regeneration

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

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Abstract

Magnetic refrigeration is a potentially environmentally-friendly alternative to vapour compression technology that is presented in this paper. The magnetocaloric effect in two magnetocaloric compounds in the La(Fe,Co,Si)13 series is presented in terms of their adiabatic temperature change and the specific heat as a function of temperature at constant magnetic field. A 2.5-dimensional numerical model of an active magnetic regenerative (AMR) refrigerator device is presented. The experimental AMR located at Risø DTU has been equipped with a parallel-plate based regenerator made of the two materials. Experimental zero heat-load temperature spans are presented for different operating conditions and the results are compared to predictions of the numerical model. It is concluded that the model reproduces the experimental tendencies and when including thermal parasitic losses to ambient and the predictions from the model are within 1.5 K of the experimental results.
Original languageEnglish
Title of host publicationExHFT-7 : 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics
Number of pages2458
PublisherAGH University of Science and Technology Press
Publication date2009
Edition1
Pages515-522
ISBN (Print)978-83-7464-235-4
Publication statusPublished - 2009
Event7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics - Krakow, Poland
Duration: 28 Jun 20093 Jul 2009
Conference number: 7
http://www.exhft-7.agh.edu.pl/

Conference

Conference7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics
Number7
CountryPoland
CityKrakow
Period28/06/200903/07/2009
Internet address

Keywords

  • active magnetic regeneration
  • Magnetic refrigeration
  • Fuel Cells and hydrogen
  • magnetocaloric effect
  • numerical modeling

Cite this

Nielsen, K. K., Engelbrecht, K., Bahl, C. R. H., Smith, A., Pryds, N., & Hattel, J. H. (2009). Numerical Modeling of Multi-Material Active Magnetic Regeneration. In ExHFT-7: 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics (1 ed., pp. 515-522). AGH University of Science and Technology Press.
Nielsen, Kaspar Kirstein ; Engelbrecht, Kurt ; Bahl, Christian Robert Haffenden ; Smith, Anders ; Pryds, Nini ; Hattel, Jesper Henri. / Numerical Modeling of Multi-Material Active Magnetic Regeneration. ExHFT-7: 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics. 1. ed. AGH University of Science and Technology Press, 2009. pp. 515-522
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abstract = "Magnetic refrigeration is a potentially environmentally-friendly alternative to vapour compression technology that is presented in this paper. The magnetocaloric effect in two magnetocaloric compounds in the La(Fe,Co,Si)13 series is presented in terms of their adiabatic temperature change and the specific heat as a function of temperature at constant magnetic field. A 2.5-dimensional numerical model of an active magnetic regenerative (AMR) refrigerator device is presented. The experimental AMR located at Ris{\o} DTU has been equipped with a parallel-plate based regenerator made of the two materials. Experimental zero heat-load temperature spans are presented for different operating conditions and the results are compared to predictions of the numerical model. It is concluded that the model reproduces the experimental tendencies and when including thermal parasitic losses to ambient and the predictions from the model are within 1.5 K of the experimental results.",
keywords = "active magnetic regeneration, Magnetic refrigeration, Fuel Cells and hydrogen, magnetocaloric effect, numerical modeling, Magnetisk k{\o}ling, Br{\ae}ndselsceller og brint",
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Nielsen, KK, Engelbrecht, K, Bahl, CRH, Smith, A, Pryds, N & Hattel, JH 2009, Numerical Modeling of Multi-Material Active Magnetic Regeneration. in ExHFT-7: 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics. 1 edn, AGH University of Science and Technology Press, pp. 515-522, 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics, Krakow, Poland, 28/06/2009.

Numerical Modeling of Multi-Material Active Magnetic Regeneration. / Nielsen, Kaspar Kirstein; Engelbrecht, Kurt; Bahl, Christian Robert Haffenden; Smith, Anders; Pryds, Nini; Hattel, Jesper Henri.

ExHFT-7: 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics. 1. ed. AGH University of Science and Technology Press, 2009. p. 515-522.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

TY - GEN

T1 - Numerical Modeling of Multi-Material Active Magnetic Regeneration

AU - Nielsen, Kaspar Kirstein

AU - Engelbrecht, Kurt

AU - Bahl, Christian Robert Haffenden

AU - Smith, Anders

AU - Pryds, Nini

AU - Hattel, Jesper Henri

PY - 2009

Y1 - 2009

N2 - Magnetic refrigeration is a potentially environmentally-friendly alternative to vapour compression technology that is presented in this paper. The magnetocaloric effect in two magnetocaloric compounds in the La(Fe,Co,Si)13 series is presented in terms of their adiabatic temperature change and the specific heat as a function of temperature at constant magnetic field. A 2.5-dimensional numerical model of an active magnetic regenerative (AMR) refrigerator device is presented. The experimental AMR located at Risø DTU has been equipped with a parallel-plate based regenerator made of the two materials. Experimental zero heat-load temperature spans are presented for different operating conditions and the results are compared to predictions of the numerical model. It is concluded that the model reproduces the experimental tendencies and when including thermal parasitic losses to ambient and the predictions from the model are within 1.5 K of the experimental results.

AB - Magnetic refrigeration is a potentially environmentally-friendly alternative to vapour compression technology that is presented in this paper. The magnetocaloric effect in two magnetocaloric compounds in the La(Fe,Co,Si)13 series is presented in terms of their adiabatic temperature change and the specific heat as a function of temperature at constant magnetic field. A 2.5-dimensional numerical model of an active magnetic regenerative (AMR) refrigerator device is presented. The experimental AMR located at Risø DTU has been equipped with a parallel-plate based regenerator made of the two materials. Experimental zero heat-load temperature spans are presented for different operating conditions and the results are compared to predictions of the numerical model. It is concluded that the model reproduces the experimental tendencies and when including thermal parasitic losses to ambient and the predictions from the model are within 1.5 K of the experimental results.

KW - active magnetic regeneration

KW - Magnetic refrigeration

KW - Fuel Cells and hydrogen

KW - magnetocaloric effect

KW - numerical modeling

KW - Magnetisk køling

KW - Brændselsceller og brint

M3 - Article in proceedings

SN - 978-83-7464-235-4

SP - 515

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BT - ExHFT-7

PB - AGH University of Science and Technology Press

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Nielsen KK, Engelbrecht K, Bahl CRH, Smith A, Pryds N, Hattel JH. Numerical Modeling of Multi-Material Active Magnetic Regeneration. In ExHFT-7: 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics. 1 ed. AGH University of Science and Technology Press. 2009. p. 515-522