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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-421-2

International Heat Transfer Conference 15
August, 10-15, 2014, Kyoto, Japan

Two Successive Thermal Inverse Problems Solved for Plasma Facing Components Inside JET Tokamak: Estimation of Surface Heat Flux and Thermal Resistance of a Surface Carbon Layer

Get access (open in a dialog) DOI: 10.1615/IHTC15.pls.009415
pages 6491-6504

Resumo

We present here, for the divertor tiles of the JET Tokamak, the successive heat flux estimation and characterization of space and time varying thermophysical properties of a surface carbon layer for the pulse #58850. The estimations are done in in-situ conditions with the exact geometry of the tile and in non-linear unsteady conditions using the Conjugate Gradient Method and the adjoint state. The estimation of the surface heat flux is done with one thermocouple measurement, the second one thermocouple is used for heat flux validation. The estimation of the surface carbon layer thermal resistance is done with the infrared measurement. For the two estimations the Monte Carlo error propagation method is used to calculate the confidence interval associated to the estimated values.