Turbomachines that add energy to the fluid stream
* Pump - when the fluid is a liquid or a slurry.
• Fans - generally have a small pressure rise (< 1 inch water)
• Blowers - moderate pressure rise (1 inch of mercury)
• Compressors - very high pressure rise (up to 150,000 psi)
· Very small to very large pressure rise.
· Rotating element is called an impeller.
* Fans, Blowers, or Compressors when handling a gas or a vapor.