A novel finite element model to simulate the electrocaloric response of a multilayer ceramic capacitor (MLCC) under real environment and operational conditions has been developed. The two-dimensional transient conductive heat transfer model presented includes the electrocaloric effect as a source term, as well as accounting for radiative and convective effects. The model has been validated with experimental data obtained from the direct imaging of MLCC transient temperature variation under application of an electric field. The good agreement between simulated and experimental data, suggests that the novel experimental direct measurement methodology and the finite element model could be used to support the design of optimised electrocaloric units and operating conditions.
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28 July 2014
Research Article|
July 28 2014
Experimentally validated finite element model of electrocaloric multilayer ceramic structures
N. A. S. Smith;
N. A. S. Smith
a)
1
National Physical Laboratory
, Hampton Road, TW11 0LW Middlesex, United Kingdom
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M. K. Rokosz;
M. K. Rokosz
a)
1
National Physical Laboratory
, Hampton Road, TW11 0LW Middlesex, United Kingdom
2Department of Materials,
Imperial College London
, London SW7 2AZ, United Kingdom
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T. M. Correia
T. M. Correia
a)
1
National Physical Laboratory
, Hampton Road, TW11 0LW Middlesex, United Kingdom
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a)
Email addresses: [email protected]; [email protected]; [email protected]
J. Appl. Phys. 116, 044511 (2014)
Article history
Received:
June 23 2014
Accepted:
July 12 2014
Citation
N. A. S. Smith, M. K. Rokosz, T. M. Correia; Experimentally validated finite element model of electrocaloric multilayer ceramic structures. J. Appl. Phys. 28 July 2014; 116 (4): 044511. https://doi.org/10.1063/1.4891298
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