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
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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title of the book: Fluid
Transcribed Image Text: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.
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