Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
72 (1992), S. 3908-3911
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Based on molecular field theory, including the effect of the field-dependent nature of Néel temperature, the entropy, and the magnetocaloric effect in terbium (Tb) have been calculated with the external field between 0 and 7 T (Tesla). The calculated results are compared with the existing experimental measurements. The maximum magnetocaloric temperature change (ΔT) is approximately 14 K near the zero-field Néel temperature (230 K) for an external field at 7 T field. This relatively large magnetocaloric effect indicates that Tb could be an attractive candidate for magnetic heat pump application. The results are then used to study the performance of heat pumps for the Carnot cycle, the constant field cycle, and the ideal regenerative cycle. The performances of these three cycles are discussed and compared.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.352267
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