Saturated steam at 1 atm condenses on the outer surface of a vertical, 100 mm diameter pipe that is 1 m long and has a uniform surface temperature of 94℃. estimate the total condensation rate and the heat transfer rate to the pipe.

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.