Values of pressure (kPa) measured at various stations of a zero reaction gas turbine stage, all at the mean blade height, are shown in the table that follows: Stagnation pressure Static pressure Nozzle entry 414 Nozzle exit 207 Nozzle exit 400 Rotor exit 200 The mean blade speed is 291 m/s, inlet stagnation temperature 1100 K, and the flow angle at nozzle exit is 70° measured from the axial direction. Assuming the magnitude and direction of the velocities at entry and exit of the stage are the same, determine the total-to-total efficiency of the stage. Assume a perfect gas with Cp=1.148 kJ/(kg °C) and y=1.333.

Values of pressure (kPa) measured at various stations of a zero reaction gas turbine stage, all at the mean blade height, are shown in the table that follows: Stagnation pressure Static pressure Nozzle entry 414 Nozzle exit 207 Nozzle exit 400 Rotor exit 200 The mean blade speed is 291 m/s, inlet stagnation temperature 1100 K, and the flow angle at nozzle exit is 70° measured from the axial direction. Assuming the magnitude and direction of the velocities at entry and exit of the stage are the same, determine the total-to-total efficiency of the stage. Assume a perfect gas with Cp=1.148 kJ/(kg °C) and y=1.333.

Elements Of Electromagnetics

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ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.

Question

title of the book: Fluid Mechanics and Thermodynamics of Turbomachinery 6th edition by S.L. Dixon and C.A. Hall

5.
Values of pressure (kPa) measured at various stations of a zero reaction gas turbine stage, all at
the mean blade height, are shown in the table that follows:
Stagnation pressure
Static pressure
Nozzle entry 414
Nozzle exit 207
Nozzle exit 400
Rotor exit 200
The mean blade speed is 291 m/s, inlet stagnation temperature 1100 K, and the flow angle at
nozzle exit is 70° measured from the axial direction. Assuming the magnitude and direction
of the velocities at entry and exit of the stage are the same, determine the total-to-total efficiency
of the stage. Assume a perfect gas with C,=1.148 kJ/(kg °C) and y=1.333.

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

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