Engineering, 24.04.2020 02:24 mshepherdmiller

Consider a combined gas–steam power plant that has a net power output of 450 MW. The pressure ratio of the gas-turbine cycle is 14. Air enters the compressor at 300 K and the turbine at 1400 K. The combustion gases leaving the gas turbine are used to heat the steam at 8 MPa to 4008C in a heat exchanger. The combustion gases leave the heat exchanger at 460 K. An open feedwater heater incorporated with the steam cycle operates at a pressure of 0.6 MPa. The condenser pressure is 20 kPa. Assuming all the compression and expansion processes to be isentropic, determine

(a) the mass flow rate ration of air to steam,
(b) the required rate of heat input in the combustion chamber, and
(c) thermal efficiency of the combined cycle.

Answers: 1

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, wyattlb97

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?

Answers: 3

continue

Engineering, 04.07.2019 18:20, sarah7984

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false

Answers: 2

continue

Engineering, 04.07.2019 18:20, samueltaye

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?

Answers: 1

continue

Engineering, 04.07.2019 19:10, kimmy6973

What is creep? what is stress relaxation?

Answers: 1

continue

You know the right answer?

Consider a combined gas–steam power plant that has a net power output of 450 MW. The pressure ratio...