ACFM (ADVANCED COAL FLOW MEASUREMENT)

100% Isokinetic Computer-Controlled Coal Pipe Extractive Testing

The Advanced Coal Flow Measurement System (ACFM) is engineered for high-accuracy air and fuel flow testing in coal pipes. Designed as a computer-controlled, PC-based isokinetic extraction system, ACFM provides real-time, precision diagnostics to optimize combustion efficiency and emissions control.


How ACFM Ensures Accuracy

  • Dual-Probe Technology – Utilizes a dirty air probe for airflow measurement and three specialized coal sampling probes for fuel analysis.
  • Isokinetic Extraction Control – The system dynamically adjusts the extraction rate point-by-point to maintain 100% isokinetic conditions across the pipe velocity profile.
  • Strict Accuracy Standards – Each pipe is rigorously tested, ensuring measurement precision within ±3% for air and ±6% for coal. If results exceed these tolerances, the test is automatically restarted for uncompromised accuracy.


With ACFM, SAS Global delivers the highest level of coal flow measurement precision, helping plants enhance combustion performance, reduce emissions, and optimize fuel efficiency.

Special Features:

  • Fast and accurate test results
  • Self adjusts to extract 100% isokinetic
  • Fuel flows automatically moisture correct
  • Comprehensive report
  • Easy to understand data format
  • Rapid ROI of testing expenditure


Data Obtained:

  • Coal flow rate
  • Primary air flow
  • Primary air velocity
  • Primary air temperature
  • Air / coal ratio
  • Air velocity profile
  • Static & total pressures
  • Relative humidity
  • Dew point


Data Reported:

  • Coal & air flow rates
  • Coal pipe balance
  • Coal fineness
  • Air velocity profile
  • Comparison of measured flows to plant instrumentation
  • Suspected causes of problems
  • Recommendation
SAS ACFM Coal Pipe Testing


Types of Extractive Probes Used:

Depending on the testing situation, SAS can utilize different coal extracting probes to insure the best possible results. SAS Global utilizes (3) different style probes; an ASC Linear Probe, ASME Linear Probe, ASC Swivel Head Probe, or RotorProbe.


Coal Pipe Testing Probes
SAS ACFM Coal Pipe Testing Example Data