subject
Engineering, 19.02.2020 05:45 martinez78

Superheated steam at 8 MPa and 480oC leaves the steam generator of a vapor power plant. Heat transfer and frictional effects in the line connecting the steam generator and the turbine reduce the pressure and temperature at the turbine inlet to 7.6 MPa and 440oC respectively. The pressure at the exit of the turbine is 10 kPa, and the turbine operates adiabatically. Liquid leaves the condenser at 8 kPa, 36oC. The pressure is increased to 8.6 MPa across the pump. The turbine and pump isentropic efficiencies are 88%. The mass flow rate of steam is 79.53 kg/s. Determine the net power output, the thermal efficiency, the rate of heat transfer from the line connecting the steam generator and the tyrbine, the mass flow rate of condenser cooling water, if the cooling water enters at 15oC and exits at 35oC, with negligible pressure change.

ansver
Answers: 1

Another question on Engineering

question
Engineering, 04.07.2019 18:10
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
Answers: 2
question
Engineering, 04.07.2019 18:20
A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.
Answers: 3
question
Engineering, 04.07.2019 19:10
Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false
Answers: 3
question
Engineering, 04.07.2019 19:10
What is the major difference between thermoplastics and thermosetting plastics from the polymerization structure point of view?
Answers: 2
You know the right answer?
Superheated steam at 8 MPa and 480oC leaves the steam generator of a vapor power plant. Heat transfe...
Questions
question
History, 18.12.2019 22:31