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Title: Experimentally validated finite element model of electrocaloric multilayer ceramic structures

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.
Authors:
;  [1] ;  [1] ;  [2]
  1. National Physical Laboratory, Hampton Road, TW11 0LW Middlesex (United Kingdom)
  2. (United Kingdom)
Publication Date:
OSTI Identifier:
22308568
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 4; Other Information: (c) 2014 Crown; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CALORIMETRY; CAPACITORS; CERAMICS; ELECTRIC FIELDS; FINITE ELEMENT METHOD; HEAT TRANSFER; LAYERS; SIMULATION; THERMOELECTRIC PROPERTIES