In a single-flash geothermal power plant, geothermal water

Chapter 5, Problem 186P

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In a single-flash geothermal power plant, geothermal water enters the flash chamber (a throttling valve) at \(230^{\circ} \mathrm{C}\) as a saturated liquid at a rate of \(50 \mathrm{~kg} / \mathrm{s}\). The steam resulting from the flashing process enters a turbine and leaves at \(20 \mathrm{kPa}\) with a moisture content of 5 percent. Determine the temperature of the steam after the flashing process and the power output from the turbine if the pressure of the steam at the exit of the flash chamber is (a) \(1 \mathrm{MPa}\), (b) \(500 \mathrm{kPa}\), (c) \(100 \mathrm{kPa}\), (d) \(50 \mathrm{kPa}\).

Equation Transcription:

230°C

Text Transcription:

230 degree celsius

50 kg/s

20 kPa

1 MPa

500 kPa

100 kPa

50 kPa

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