Determine the pressure and the entropy generation

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Reference no: EM131156537

Problem 6.21:

Water at 15 bar is throttled to final pressure such that the temperature is 5 °C. Determine the pressure and the entropy generation. How much work could be produced if instead of throttling the final pressure is reached via expansion in a reversible expander?

Problem 6.22:

a) An ideal gas (CP = 30 J/mole) is throttled from 20 bar, 25 °C to 1 bar. What is the temperature at the exit?

b) Water is throttled from 20 bar, 25 °C to 1 bar. What is the temperature at the exit? If a vapor-liquid mixture, report the liquid fraction.

c) A vapor-liquid mixture of water containing 50% liquid is throttled from 20 bar to 0.1 bar. What is the temperature at the exit? If a vapor-liquid mixture, report the liquid fraction.

Reference no: EM131156537

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