Real Time Power

It all starts with Inlet Mass Flow Rate.

  • Need an OEM Independent assessment of mass flow rate and firing temperature?
  • Are you an R&D center? Need  accurate air mass flow measurement?
  • Have you experienced compressor damage, and still not sure why it has happened?
  • Want to improve the accuracy of your GT & CC performance calculations?

imageObtaining an accurate reading of mass flow rate at the turbine inlet is the first step in correctly adapting a thermodynamic model to a GT unit. The amount of air coming into the engine will determine its real time compressor performance ratio, combustion characteristics, efficiencies, temperatures, and emissions throughout the unit. For combined cycles, the inlet air mass flow rate for each unit will also determine similar parameters throughout the steam cycle.

The Challenges in Measuring Mass Flow Rate.

As opposed to gas and oil industries, where gases and fluids flow in round, symmetrical pipes, inlet air flows into the gas turbines through sometimes rather short, irregular inlet ducts. As a result, the flow does not become fully developed within the duct, and the flow distribution is irregular and does not show a pattern. Because of these complexities, a pitot tube approach is not a viable option for measuring inlet flow rate. Other approaches are ineffective, and would cause significant pressure drop that decrease the efficiency of the compressor.

The Benefit of Inlet Mass Flow Measurements

  • High and Low Load MW output and corresponding Heat Rates
  • Emission Forecast
  • Unit component degradation
  • Unit performance improvement upon upgrades and maintenance (Compressor Wash)
  • Filter fouling and pressure losses
  • Plant Performance Decreases

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