The outlet works for a large detention pond is to be a concrete box with 45 degree wingwalls. The box is to be cast in place. The barrel is to have a square cross-section. It should carry a flow of no more than 20 m3/s. with a headwater of 7 m. The available slope for the barrel is 1%. Determine the size of the culvert.

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.