Design and manufacture of a system for measuring the thermal conductivity of conductive materials (Copper, Aluminum, Brass Alloy)

In this research we designed and constructed a system from a local materials and tested for measuring the thermal conductivity coefficient of thermally good conducting materials in the temperature range (25150 c). We measure the thermal conductivity of three conducting materials (Copper, Aluminum and Brass alloy), The thermal conductivity measuring result show a good convergence with standard values (Cu 416W/m.c with a percentage error 3.7%), (Al 244 W/m.c with a percentage error 2.9 %), (Brass alloy 112,5 W/m.c with a percentage error 2.2 %). The thermal conductivity of copper and aluminum show decreases of conductivity with increasing temperature.