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 τ , 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.

Influence of thermal conductivity on the dynamic response of magnetocaloric materials / Porcari, Giacomo; Morrison, K.; Cugini, Francesco; Turcaud, J. A.; Guillou, F.; Berenov, A.; van Dijk, N. H.; Brück, E. H.; Cohen, L. F.; Solzi, Massimo. - In: INTERNATIONAL JOURNAL OF REFRIGERATION. - ISSN 0140-7007. - 59(2015), pp. 29-36. [10.1016/j.ijrefrig.2015.06.028]

Influence of thermal conductivity on the dynamic response of magnetocaloric materials

PORCARI, Giacomo;CUGINI, FRANCESCO;SOLZI, Massimo
2015

Abstract

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 τ , 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.
Influence of thermal conductivity on the dynamic response of magnetocaloric materials / Porcari, Giacomo; Morrison, K.; Cugini, Francesco; Turcaud, J. A.; Guillou, F.; Berenov, A.; van Dijk, N. H.; Brück, E. H.; Cohen, L. F.; Solzi, Massimo. - In: INTERNATIONAL JOURNAL OF REFRIGERATION. - ISSN 0140-7007. - 59(2015), pp. 29-36. [10.1016/j.ijrefrig.2015.06.028]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2796773
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