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Energy Analysis of Control Volumes at Steady
Chapter 4, Problem 49P(choose chapter or problem)
Water vapor enters a turbine operating at steady state at \(500^{\circ} \mathrm{C}\), 40 bar, with a velocity of \(200 \mathrm{~m} / \mathrm{s}\), and expands adiabatically to the exit, where it is saturated vapor at 0.8 bar, with a velocity of \(150 \mathrm{~m} / \mathrm{s}\) and a volumetric flow rate of \(9.48 \mathrm{~m}^3 / \mathrm{s}\). The power developed by the turbine, in kW, is approximately
(a) 3500 ,
(b) 3540 ,
(c) 3580 ,
(d) 7470
Questions & Answers
QUESTION:
Water vapor enters a turbine operating at steady state at \(500^{\circ} \mathrm{C}\), 40 bar, with a velocity of \(200 \mathrm{~m} / \mathrm{s}\), and expands adiabatically to the exit, where it is saturated vapor at 0.8 bar, with a velocity of \(150 \mathrm{~m} / \mathrm{s}\) and a volumetric flow rate of \(9.48 \mathrm{~m}^3 / \mathrm{s}\). The power developed by the turbine, in kW, is approximately
(a) 3500 ,
(b) 3540 ,
(c) 3580 ,
(d) 7470
ANSWER:Solution 49P
Step 1 of 2:
In this question, we need to find the power developed by the turbine in
Data given
Steady state temperature
Pressure
Velocity
Pressure of saturated vapor
Velocity when saturated
Volumetric Flow rate