Engineering, 30.07.2020 04:01, drea445
The gas-turbine portion of a combined gas–steam power plant has a pressure ratio of 16. Air enters the compressor at 300 K at a rate of 14 kg/s and is heated to 1500 K in the combustion chamber. The combustion gases leaving the gas turbine are used to heat the steam to 400 °C at 10 MPa in a heat exchanger. The combustion gases leave the heat exchanger at 420 K. The steam leaving the turbine is condensed at 15 kPa.
Assuming all the compression and expansion processes to be isentropic, determine:
a. The mass flow rate of the steam,
b. The net power output,
c. The thermal efficiency of the combined cycle.
Answers: 1
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Engineering, 04.07.2019 18:20, moneywaydaedae
Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis
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The gas-turbine portion of a combined gas–steam power plant has a pressure ratio of 16. Air enters t...
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