Compressors, Gas Turbines and Jet Engines

The process, which causes the air to enter the impeller blades of a centrifugal compressor at _____ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl.

  • A. Reduced
  • B. Increased
  • C. Zero
  • D. None of these
Answer: Option A.

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