The Thermal Conductivity of Insulating Powder Apparatus helps students measure the thermal conductivity of insulating materials under steady-state conditions. It includes a cylindrical setup with heating and cooling chambers, thermocouples, and digital indicators. Learners can compare different materials and evaluate insulation efficiency. Suitable for engineering colleges, polytechnics, and ITIs, this trainer provides accurate results, ensuring a deeper understanding of thermal insulation properties and heat-loss prevention.