Experimental Study of the Efficiency of Pelton Turbine based on Ultrasonic Flow Measurement Method
Taking the Pelton turbine in a hydropower station as an example,ultrasonic flow measurement method is a-dopted to conduct the efficiency tests of the unit before and after the renovation of the nozzle head and the deflector disc spring.The efficiency curve of the turbine is obtained based on the experimental data.The results show that the variation trend of the absolute efficiency of the unit before and after the renovation is basically consistent,while the efficiency and the economic performance are improved.The efficiency test results with the ultrasonic flow measurement method are cor-rect and reliable.It can provide technical support for the safe and economic operation of subsequent units.