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Influence of thermal conductivity on the dynamic response of magnetocaloric materials

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journal contribution
posted on 2015-08-28, 13:54 authored by G. Porcari, Kelly MorrisonKelly Morrison, F. Cugini, J.A. Turcaud, F. Guillou, A. Berenov, N.H. van Dijk, E. Brueck, L.F. Cohen, M. Solzi
We compare the magnetocaloric effect of samples prepared with different thermal conductivities to investigate the potential of composite materials. By applying the magnetic field under operating conditions we test the material's response and compare this to heat transfer simulations in order to check the reliability of the adiabatic temperature change probe used. As a result of this study we highlight how the material's thermal conductivity influences Full-size image (<1 K), the time constant of temperature change. This parameter ultimately limits the maximum frequency of a refrigerant cycle and offers fundamental information about the correlation between thermal conductivity and the magnetocaloric effect.

Funding

This work was supported by the UK EPSRC Programme grant, Nanostructured functional materials for Energy Efficient Refrigeration (EP/G060940).

History

School

  • Science

Department

  • Physics

Published in

International Journal of Refrigeration

Citation

PORCARI, G. ...et al., 2015. Influence of thermal conductivity on the dynamic response of magnetocaloric materials. International Journal of Refrigeration, 59, pp.29-36.

Publisher

© Elsevier

Version

  • AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

This paper was accepted for publication in the journal International Journal of Refrigeration and the definitive published version is available at http://dx.doi.org/10.1016/j.ijrefrig.2015.06.028

ISSN

1879-2081

Language

  • en

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