Measurement points for fan performance curve

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SUMMARY

The discussion focuses on the optimal placement of static pressure probes for measuring fan performance curves, specifically whether to position them near the surface or at the center of the duct. The consensus is that the placement depends on the specific application and measurement conditions required. Key parameters include the volume of air shifted per second rather than the speed of airflow in meters per second. Additionally, the impact of turbulence on static pressure measurements is acknowledged, suggesting that probe placement should consider flow dynamics.

PREREQUISITES
  • Understanding of fan performance curves
  • Knowledge of static pressure measurement techniques
  • Familiarity with airflow dynamics and turbulence
  • Experience with duct design and configuration
NEXT STEPS
  • Research best practices for static pressure probe placement in duct systems
  • Explore methods for measuring airflow volume accurately
  • Study the effects of turbulence on static pressure readings
  • Investigate different fan applications and their specific measurement requirements
USEFUL FOR

Engineers, HVAC professionals, and anyone involved in fan system design and performance analysis will benefit from this discussion.

Yuri B.
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For finding fan performance curve where better to put static pressure probes - near the surface or near the center of the duct ?
 
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I think it would depend upon the application that you want the fan for. You would need to specify your own measurement conditions to suit what you want to use it for. Is the relevant parameter the volume shifted per second or the speed of the air flow in m/s?
 
Volume. Should turbulence in some points of the duct add some dynamics to static pressure being measured by the probe placed right perpendicular to flow ?
 

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