variavel0=<b>Vicente de Paulo Nicolau</b> - vicente@lmpt.ufsc.br LMPT-EMC-UFSC
<b>Saulo Güths</b> - saulo@lmpt.ufsc.br LMPT-EMC-UFSC
<b>Marcel Gava da Silva</b> - marcel@lmpt.ufsc.br LMPT-EMC-UFSC
<b>Abstract.</b> An experimental set-up and a particular procedure are developed in order to determine, simultaneously, the properties thermal conductivity and specific heat. Special heat fluxmeters, based on tangential gradient, and plane square sample are used. One of the sample surfaces is heated with a constant rate, while the other surface is maintained at a low-constant temperature, in contact with a cold plate, refrigerated by water. The system starts from a state of uniform temperature and progress towards a final condition of steady state, with a uniform temperature gradient on the sample. In the final steady-state condition calculation of thermal conductivity is performed. The specific heat is calculated taking into account the energy stored within the sample, obtained from an integration of the heat fluxmeters signals and the temperature difference on the sample. A simulation program is used to evaluate the measurement errors and as tool to develop special correction to be applied to the properties values obtained. Some simulated and measured results are presented in the paper.
<b>Keywords.</b> Thermal conductivity, specific heat, thermal insulation, thermophysical property, heat fluxmeter.