Homework Help is Here – Start Your Trial Now!
Engineering
Mechanical Engineering
4.5. 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 given below. Stagnation pressure Nozzle entry 414 Nozzle exit 400 Static pressure Nozzle exit Rotor exit 207 200 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, and the axial velocity remains constant, determine the total to total efficiency of the stage. Assume a perfect gas with C = 1.148 kJ/(kg °C) and y = 1.333.

4.5. 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 given below. Stagnation pressure Nozzle entry 414 Nozzle exit 400 Static pressure Nozzle exit Rotor exit 207 200 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, and the axial velocity remains constant, determine the total to total efficiency of the stage. Assume a perfect gas with C = 1.148 kJ/(kg °C) and y = 1.333.

Elements Of Electromagnetics
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
See similar textbooks
icon
Related questions
Question
4.5. 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 given below. Stagnation pressure Nozzle entry 414 Nozzle exit 400 Static pressure Nozzle exit Rotor exit 207 200 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, and the axial velocity remains constant, determine the total to total efficiency of the stage. Assume a perfect gas with Cp = 1.148 kJ/(kg °C) and y = 1.333.
Transcribed Image Text:4.5. 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 given below. Stagnation pressure Nozzle entry 414 Nozzle exit 400 Static pressure Nozzle exit Rotor exit 207 200 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, and the axial velocity remains constant, determine the total to total efficiency of the stage. Assume a perfect gas with Cp = 1.148 kJ/(kg °C) and y = 1.333.
Expert Solution
Step 1

Given Data

  • The mean blade speed is: v=291 m/s
  • The stagnation temperature is: T=1100 K
  • The angle at the nozzle exit is: α=70°
  • The specific heat at constant pressure is: cp=1.148 kJ/kg·°C
  • The specific heat ratio is: γ=1.333

To Determine

The total to total efficiency of the stage

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 8 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Available Energy
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY
SEE MORE TEXTBOOKS