Physics · Wind Energy Conversion Systems
How does the number of blades on a horizontal axis wind turbine rotor typically influence its optimal Tip Speed Ratio (TSR) for maximum power extraction?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Increasing the number of blades allows the turbine to reach its peak power coefficient at a significantly higher rotational speed relative to wind speed.
- 2The optimal Tip Speed Ratio remains constant regardless of the number of blades as long as the rotor diameter is unchanged.
- 3A turbine with more blades requires a higher optimal Tip Speed Ratio to minimize the impact of aerodynamic drag.
- 4A turbine with fewer blades requires a higher optimal Tip Speed Ratio to capture the wind energy effectively across the swept area.✓
Correct answer
A turbine with fewer blades requires a higher optimal Tip Speed Ratio to capture the wind energy effectively across the swept area.
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