Discuss the below in detail:
Q: Air at 200 kPa enters a 2-m-Iong, thin-walled tube of 25-mm diameter at 150°C and 6 m/s Steam at 20 bars condenses on the outer surface.
(a) Determine the outlet temperature and pressure drop of the air, as well as the rate of heat transfer to the air.
(b) Calculate the parameters of part (a) if the pressure of the air is doubled.