THERMAL CONDUCTIVITY ANALYSIS IN VARIOUS MATERIALS USING COMPOSITE WALL APPARATUS

Heat transfer due to temperature difference and mass concentration difference as heat and mass transfer. So many research has been made in past on heat transfer through composite wall of different materials. Which I have extended this work by taking a new materials like a charcoal and natural gum as an composite material along with mild steel, Bakelite and wood. In which I conduct a experiment on a composite material wall apparatus and fitted mica heater plate centrally in the combination on the composite wall and varying the voltage at 80 , 120 ,160 and current is different so I found the thermal conductivity of the material as followed Bakelite ? 0.976645 W/m-k , wood- 1.804670 W/m-k , charcoal- 0.272975 W/m-k, and natural gum ? 0 according to the found result i hope the natural gum can be used as a insulating material in the future.