INTEMA   05428
INSTITUTO DE INVESTIGACIONES EN CIENCIA Y TECNOLOGIA DE MATERIALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Thermal Parameter Identification in Remote Heating
Autor/es:
GLORIA FRONTINI; FACUNDO ALTUNA; FERNANDO OTERO; JULIETA PUIG; CRISTINA HOPPE; GUILLERMO ELIÇABE
Reunión:
Simposio; New Trends in Parameter Identification for Mathematical Model IMPA; 2017
Resumen:
This presentation addresses the estimation of the thermal parameters of a polymer matrix embedded with plasmonic nanoparticles using reduced models. The proposed problem corresponds to a remote heating based on the Photothermal Effect (PE) of a polymer by means of a laser beam. A 1D reduced model has been used to solve the forward radiative transfer problem involved, to achieve the equivalent thermal source. Time-varying and space-varying temperature measurements are simulated for a 3D-real geometry with additive Gaussian noise considering partial and total illumination from the beam. The corresponding solution for the thermal conductivity k and the heat capacity Cp is calculated using the Levenberg-Marquardt algorithm for 1D and 2D reduced geometries by the inversion of thermocouple temperature measurements at the center of the irradiated specimen. As a result, the scopes of the geometrically reduced models are evaluated in terms of the determination of these thermal parameters