# (18 points) Water at Tm,i = 27°C with a mass flow rate of 0….

(18 points) Water at Tm,i = 27°C with a mass flow rate of 0.002 kg/s enters a 2 cm diameter, 5 m long circular tube, whose surface is at Ts = 45°C. Use the water’s inlet temperature when evaluating its properties. (a) What are pressure drop and pumping power required for the flow? (b) If you neglect the contribution of thermal entrance length, what is the heat transfer coefficient and mean outlet temperature?