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Inverse Method for Calculating the Temperature-Dependent Thermal Conductivity of Nuclear Materials

T. Pavlov[1,2], P. Van Uffelen[1], L. Vlahovic[1], D. Staicu[1], M. Wenman[2], R. W. Grimes[2], ,
[1]Institute for Transuranium Elements, Eggenstein-Leopoldshafen, Germany
[2]Department of Materials, Imperial College London, London, UK
Published in 2014

The high temperature measurement of thermal conductivity is vital for predicting nuclear fuel performance both during reactor operation and accident conditions.

The proposed method uses experimental thermograms obtained via high temperature laser-flash heating of a disc-shaped sample in combination with finite element analysis and parameter optimization to calculate the thermal conductivity of the sample material.

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