Steam Turbine Rerates

Conhagen has a long record of steam turbine modification related to changes in operating conditions, output requirements, or efficiency requirements. Turbines ranging in size from several hundred horsepower to 18 MW (24, 138 HP) have been rerated.

Thermodynamic, Mechanical, and Rotordynamic Analyses can be performed as required for both impulse and reaction designs. Such analyses are accomplished with software developed by Cosmos, CF Design, and proprietary analysis software. Additionally, some mechanical analysis is also performed via analytical methods.

The combination of these analysis techniques directly influences flow path design. All rerates are approached with the geometry of the existing casing as a limiting factor in the new design.


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