Methods for low-cost estimation of steam turbine performance

Details Methods for low-cost estimation of steam turbine performance Methods for low-cost estimation of steam turbine performance

2006-04-04

2006-04-04

McCall, Eric S. (Department: 2855)

Measuring and testing

Turbine engine

Compressor

Reexamination Certificate

active

07021126

ABSTRACT:
A method for determining efficiency of an installed steam turbine includes estimating, at a first plurality of times, a first mean value and a first variance of at least one performance variable of the steam turbine utilizing a set of station sensors. The method further includes estimating, at a second plurality of times including times encompassing at least some of the first plurality of times, a second mean value and a second variance of the at least one performance variable utilizing a different set of sensors, wherein the different set of sensors includes precision sensors. A mapping function is determined between the first mean values and the second mean values using the first mean values, the first variances, the second mean values, and the second variances.

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