The ASME Performance Test Code PTC-6.2-2004 provides for the testing of steam turbines in combined cycle applications. The acceptance criterion, called “Output Performance” is primarily a measure of efficiency. This paper presents a scenario that illustrates that efficiency alone is not always a sufficient criterion. In this case history, MW Output at the revenue meters suffered by nearly 10% and yet the PTC-6.2 efficiency criterion was satisfied.
Specifying and Evaluating Steam Turbines in Combined Cycle Applications
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Penna, LAL. "Specifying and Evaluating Steam Turbines in Combined Cycle Applications." Proceedings of the ASME 2009 Power Conference. ASME 2009 Power Conference. Albuquerque, New Mexico, USA. July 21–23, 2009. pp. 445-446. ASME. https://doi.org/10.1115/POWER2009-81085
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