Q. have the highest vane angle at inlet (β1 value)?

  • (A) slow runner
  • (B) medium runner
  • (C) fast runner
  • (D) vane angle is defined only for kaplan turbines and not francis turbines
πŸ’¬ Discuss
βœ… Correct Answer: (C) fast runner
Explanation: considering the velocity diagram of francis turbine at the inlet for a fast runner, vane angle is an obtuse angle. whereas, it is right angle for medium runner and an acute angle for a slow runner.

Published by Mr. Dubey ⭐ 109.87K Points at 19-Sep-2023 08:23 pm in Fluid Mechanics and Machinery

Explanation by: Mr. Dubey
considering the velocity diagram of francis turbine at the inlet for a fast runner, vane angle is an obtuse angle. whereas, it is right angle for medium runner and an acute angle for a slow runner.

πŸ’¬ Discussion

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