Isokinetic Particle Sampling

Principles of isokinetic extraction:

Isokinetic Sampling - Baseline Flow

Undisturbed flow

  • Purpose is to capture particles that pass through a defined area for a defined time without disturbing their paths.
  • The velocity of the air going into the sampling probe nozzle is equal to the velocity of the undisturbed air at that point.
  • The air is disturbed as little as possible so that the same¬† particles (no more and no less) go into the nozzle as would have passed the area of the nozzle had it not been there.
Isokinetic Field Test
Isokinetic Particle Sampling

Particulate sampling behavior
(For fine particulate such as pulverized coal or flyash. Based on data from the EPRI Coal Flow Loop.)


Azore CFD Software

Airflow Sciences Equipment