1. Consider a 50mm ID 100mm OD pipe. The pipe material has a thermal conductivity of 14.5 W/mC. The inner surface is kept at 100 C while the outer surface is kept at 30 C. What is the heat transferred to through the pipe in W/m?

2.A pipe whose material has a thermal conductivity of 45 W/mC transports saturated steam at 180 C in a 50 mm ID and 55 mm OD pipe. outer surface is exposed to the environment at 30 C. It has been estimated that the transfer coefficient of convective heat from the outer surface of the pipe to the environment is 25 W/m2C. a) What is the heat loss of the pipe per meter of length? In an attempt To reduce heat loss, the pipe is insulated with a 25.3mm layer of a material insulation with thermal conductivity equal to 0.1 W/mC. b) What is the heat loss per meter length of pipe now? Assume that the heat transfer coefficient remains the same in both cases. Calculate all temperatures and neglect only the convective effect of saturated steam. (1.5 pt) See section 3.2 of the textbook as guide for part a)