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Steam enters a steady-flow turbine with a mass flow rate
Chapter 5, Problem 55P(choose chapter or problem)
Steam enters a steady-flow turbine with a mass flow rate of \(13 \mathrm{~kg} / \mathrm{s}\) at \(600^{\circ} \mathrm{C}, 8 \mathrm{MPa}\), and a negligible velocity. The steam expands in the turbine to a saturated vapor at \(300 \mathrm{kPa}\) where 10 percent of the steam is removed for some other use. The remainder of the steam continues to expand to the turbine exit where the pressure is \(10 \mathrm{kPa}\) and quality is 85 percent. If the turbine is adiabatic, determine the rate of work done by the steam during this process.
Equation Transcription:
Text Transcription:
13 kg/s
600 degree celsius,8MPa
300 kPa
10 kPa
Questions & Answers
QUESTION:
Steam enters a steady-flow turbine with a mass flow rate of \(13 \mathrm{~kg} / \mathrm{s}\) at \(600^{\circ} \mathrm{C}, 8 \mathrm{MPa}\), and a negligible velocity. The steam expands in the turbine to a saturated vapor at \(300 \mathrm{kPa}\) where 10 percent of the steam is removed for some other use. The remainder of the steam continues to expand to the turbine exit where the pressure is \(10 \mathrm{kPa}\) and quality is 85 percent. If the turbine is adiabatic, determine the rate of work done by the steam during this process.
Equation Transcription:
Text Transcription:
13 kg/s
600 degree celsius,8MPa
300 kPa
10 kPa
ANSWER:
Step by step solution Step 1 of 3From the table of superheated water,write the initial enthalpy of steam when the initialpressure and initial temperature is respectively as,From the table of saturated water pressure table,write the final enthalpy of steam when thefinal pressure and quality at state 2 is respectively as,\nCalculate the enthalpy of steam at state as follows ............(1)Here enthalpy of saturated liquid is ,quality is , and enthalpy of vaporization is .From the table of superheated water,write enthalpy of vaporization and enthalpy of formation atthe pressure of and quality of 0.85as,respectively as,