Kaplan turbine runner blade count (typical range) State the usual number of adjustable runner blades used in a Kaplan (axial-flow) turbine. Choose the correct range.
Mechanical Engineering
Hydraulic Machines
Difficulty: Easy
Choose an option
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A2 to 4
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B4 to 8
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C8 to 16
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D16 to 24
Answer
Correct Answer: 4 to 8
Explanation
Concept/Approach
- Kaplan turbines use a small number of adjustable blades to suit varying heads and flows.
Typical designMost Kaplan runners use about 4 to 8 blades, balancing efficiency, cavitation resistance, and structural aspects.
Final Answer4 to 8