2. A 2.0 inch Schedule 40 pipe has k = 27 Btu / h.ft.oF. The fluid in the pipe has h %3D 30 Btu / h.ft2.oF. The outer surface of the pipe is coated with a fiber glass insulation thickness of 4 mm with k = 0.023 Btu / h.ft.oF. The convection coefficient on the outer surface of the insulation is 2.0 Btu / h.ft2.oF. The temperature of the fluid contained in the pipe is 3200F and the ambient temperature is 700F. Calculate the heat loss per unit length of pipe!

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