The Rankine cycle with one closed feedwater heater (CFWH). Superheated water vapor enters the turbine at 16 MPa, 520°C and the condenser pressure is 10 kPa. The mass flow rate of steam entering the...

The Rankine cycle with one closed feedwater heater (CFWH). Superheated water vapor enters the turbine at 16 MPa, 520°C and the condenser pressure is 10 kPa. The mass flow rate of steam entering the turbine is 25 kg/s. The CFWH uses extracted steam at 6 MPa. Saturated liquid condensate drains from the CFWH at 6 MPa and is trapped with an expansion valve/trap at 10 kPa into the condenser. The feedwater leaves the CFWH at 16 MP and at a temperature that is equal to the saturation temperature at 6 MPa, Saturated liquid leaves the condenser at 10 kPa. No detailed property table is required. Assume that hT₁
= 85%, hT₂
= 85%, and hP₁= 80%, determine the following:

• Specific enthalpy at the pump exit.


• Temperature (Celsius) and specific enthalpy of the fluid existing the closed feedwater heater toward the steam generator.


• Specific enthalpy of the condensate exiting the CFWH


• Specific enthalpy of the condensate exiting the trap valve.

Extracted text: STEAM GEN T1 T2 (1) 3 2 (1-y) (v) CFWH P1 CONDENSER (1) (1) (1) Expansion Valve/Trap 7 (y) (y)