The cylindrical segment shown in Figure P2-122 has a thermal conductivity of 100 W/m · ºC. The

Question:

The cylindrical segment shown in Figure P2-122 has a thermal conductivity of 100 W/m · ºC. The inner and outer radii are 1.5 and 1.7 cm, respectively, and the surfaces are insulated. Calculate the circumferential heat transfer per unit depth for an imposed temperature difference of 50ºC. What is the thermal resistance?