Air is flowing at a rate of 10lb/h inside a round tube with a diameter of 1.5 in. and le...

Air is flowing at a rate of 10lb/h inside a round tube with a diameter of 1.5 in. and length of 10 in., similar to Figure 13–32 on page 644. The initial temperature of the air entering the tube is 50° F. The wall of the tube has a uniform constant temperature of 200° F. The specific heat of the air is 0.24 Btu/(lb-° F), the convection coefficient between the air and the inner wall of the tube is 3.0 Btu/h-ft²-° F), and the thermal conductivity is 0.017 Btu/h-ft²-° F). Determine the temperature of the air along the length of the tube and the heat flow at the inlet and outlet of the tube.

Reference Figure 13–32