A feedwater heater is a device to heat the feedwater before itgoes into the boiler. This device receives one stream of saturatedvapor at 0.8 MPa and another stream of compressed liquid at 0.8 MPaand 60 oC. These two streams combined to become saturated liquid at0.8 MPa at the exit of the feedwater heater. The mass flow rate ofthe compressed liquid is 100 kg/s. Determine a) the mass flow rateof the saturated vapor, b) the exergy destroyed in the feedwaterheater (To=300K, Po=0.1 MPa) (10)
