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State whether the following is true or false.
Intercooling between compressor stages reduces the total work required.

  • A.False
  • B.True only at large scales
  • C.False only at small scales
  • D.True

Answer: D

Cooling the gas between stages lowers its specific volume before the next compression, and the work for a given pressure ratio scales with that volume. The saving is real and is why multistage machines are built with coolers.

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