In a thermal power plant, an adiabatic steam turbine operating at steady state with inlet conditions at pressure of 30 bar, temperature of 350°C and mass flow rate of 10 kg/s. Half of the steam is extracted at the first exit at pressure of 5 bar and temperature of 200°C. The remaining steam leaves the second exit at pressure of 0.15 bar and a quality of 0.9. Neglect the change in kinetic and potential energy and the surroundings is assumed to be a temperature of 25°C and atmospheric pressure. Determine: a) The total work produced by the turbine (in kW) b) The exergy destruction (in kW)

In a thermal power plant, an adiabatic steam turbine operating at steady state with inlet conditions at pressure of 30 bar, temperature of 350°C and mass flow rate of 10 kg/s. Half of the steam is extracted at the first exit at pressure of 5 bar and temperature of 200°C. The remaining steam leaves the second exit at pressure of 0.15 bar and a quality of 0.9. Neglect the change in kinetic and potential energy and the surroundings is assumed to be a temperature of 25°C and atmospheric pressure. Determine: a) The total work produced by the turbine (in kW) b) The exergy destruction (in kW)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Free Body Diagram

The system of forces acting on a body tends to either rotate it or make the body undergo motion. In general, when an external agent exerts a force on a body, the body undergoes translational motion and rotational motion. The body has six degrees of freedom under the influence of that force. Here, three degrees of freedom are from the translational motion while the other three are from the rotation motion. However, sometimes the bodies are not allowed to undergo any motion and are fixed, under such conditions the body is said to be constrained.

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Solve all 4 pls.

In a thermal power plant, an adiabatic steam turbine operating at steady state with inlet
conditions at pressure of 30 bar, temperature of 350°C and mass flow rate of 10 kg/s.
Half of the steam is extracted at the first exit at pressure of 5 bar and temperature of
200°C. The remaining steam leaves the second exit at pressure of 0.15 bar and a quality
of 0.9. Neglect the change in kinetic and potential energy and the surroundings is
assumed to be a temperature of 25°C and atmospheric pressure. Determine:
a) The total work produced by the turbine (in kW)
b) The exergy destruction (in kW)
c) The second law efficiency of the turbine
d) It is proposed to modify the turbine blade in order to increase the performance
of the steam turbine. With this modification, the steam conditions at the inlet
and the first exit remain the same but the steam will leave the second exit at
pressure of 0.1 bar and a quality of 0.9. Perform an appropriate analysis and
justify whether it is worth considering such modification.

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