A 50-cm-diameter pipeline in the Arctic carries hot oil at 30 C and is exposed to a surrounding temperature of 20 C. A special powder insulation 5 cm thick surrounds the pipe and has a thermal conductivity of 7 mW/mC. The convection heat-transfer coefficient on the outside of the pipe is 9 W/m2 C. Estimate the energy loss from the pipe per meter of length.