Gas-Turbine Heat-Rate Degradation at Comparable Operating Conditions
The cost: A gradual increase in net heat rate means more fuel is required for the same electrical output. But load, ambient conditions, operating mode, fuel properties, and thermal stabilization can all change the result, leaving performance engineers to spend hours preparing and comparing trends manually.
What Grayson does: Analyzes a prepared dataset limited to comparable steady-state operation, including calculated net heat rate, generator output, ambient conditions, compressor discharge pressure and temperature, and documented maintenance events. Trend, anomaly, correlation, and period-comparison analysis can surface gradual performance changes and show whether a documented compressor wash coincided with recovery.
Ask Grayson: “Compare net heat rate, compressor discharge pressure, and compressor discharge temperature before and after the documented compressor wash. Did the historical performance relationship change?”
Outcome: Help the performance engineer distinguish a gradual efficiency trend from a sudden signal change and identify whether the pattern is consistent with recoverable compressor performance loss for further inspection.




