Turbine Efficiency Monitoring Utilizing Ultrasonic Flowrate Measurement

by James T. Walsh, Ferranti ORE Inc, Falmouth, MA, USA,
Keeling McGaughey, Ferranti ORE Inc, Falmouth, MA, USA,
Joel Webb, Ferranti ORE Inc, Falmouth, MA, USA,

Document Type: Proceeding Paper

Part of: Water Power '87


On-line turbine efficiency measurement can be achieved by ultrasonic flowrate measurement and state-of-the-art data acquisition techniques. A field performance test program conducted at Pensacola Power Station, Grand River Dam Authority, Langley, Oklahoma is described. The program included installation of multipath Ultrasonic flowmeters in six units and continuously sampling unit flow, inlet pressure, tailwater level and power output with a system controller. Results of unit performance, which were originally installed in 1939, are discussed and compared to the original tests conducted during commissioning. Also described is equipment installation including time required, calibration methods, test procedures and accuracy.

Subject Headings: Turbines | Ultrasonic methods | Field tests | Power plants | Flow measurement | Rivers and streams | Dams | Flow control | Oklahoma | United States

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