Performance uprate of a geothermal steam turbine case study: Brady Power low pressure turbine

Conference · Wed Dec 31 04:00:00 EST 1997

OSTI ID:602750

Miller, Jr, R J ^[1]

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1. Elliott Turbomachinery Co., Jeannette, PA (United States)

The output of a low pressure steam turbine operating in a geothermal power plant has been increased 10.9% by performing an efficiency uprate. The performance of the turbine was studied, resulting in a design for re-optimizing the steam path. New high-efficiency components were blended with existing turbine parts to achieve large output gains at minimum cost. Because the uprate was performed by a non-OEM, the analysis and manufacturing techniques were specifically tailored for the aftermarket. The work was completed on the spare turbine components, thereby allowing the plant to continue operation while the uprated parts were being manufactured. The predicted output gains were confirmed by field performance tests of the existing and uprated turbines.

• OSTI ID: 602750
• Report Number(s): CONF-971048--
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
58 GEOSCIENCES
GEOTHERMAL ENERGY
GEOTHERMAL POWER PLANTS
GEOTHERMAL RESOURCES
POWER GENERATION
STEAM TURBINES