Gas Compressor

How a gas turbine compresses its air.

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About this lesson

The axial compressor of a gas turbine squeezes large volumes of air through many rows of blades. Each stage adds only a little pressure, so many stages are stacked.

How it works

  1. Air is filtered at the inlet so dust does not erode the blades.
  2. The air may be cooled before the compressor to raise its density.
  3. Rotating blades push the air and rotor blades add speed; stationary blades turn it into pressure.
  4. Stage by stage the air pressure and temperature rise.
  5. The compressed air goes to the combustion chamber.
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