Analysis of uncertainties in thermophysical parameters of materials obtained from a periodic method

In the present work, we are interested in the improvement and the validation of the identification procedure for the simultaneous estimation of thermophysical parameters and their uncertainties using a periodic method. The effect of the statistical uncertainties on the estimation procedure and the reproducibility study of experimental device and measurement method are presented. In addition, the effect of the uncertainties of supposedly known model parameters on the identification procedure was investigated. The results show good reproducibility of the experimental results, and the uncertainty related to reproducibility is negligible. However, conductivity and diffusivity of the copper plate, and heat coefficient exchange, are parameters that strongly affect the result of the identification procedure.