Chapter 3
Fans and Air Handling Systems


The fan is the heart of any forced air cooling system. The fan propeller converts torque from the motor to increase the static pressure across the rotor of the fan and to energize the air particles. A fan is frequently employed in electronic equipment to provide the airflow required for cooling electronics. Direct air cooling is a primary example of using a fan for thermal control of electronic systems.

  • 3.1 Fan Types
  • 3.2 Fan Performance and Fan Laws
  • 3.3 Fan Inlet and Exit Conditions
  • 3.4 Fan and System Pressure
  • 3.5 Fan Acoustic Noise
  • 3.6 Fan Reliability
  • References

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