Turbine Efficiency Monitoring With RISONIC modular flow measurement Additional Values • Penstock Leak Detection • Extremely cost-effective System • Sediment Monitoring • Online and trend monitoring • Very easy to implement due to predefined intelligent applications • Use existing flow and pressure measurements for the evaluation Description The RISONIC modular system includes an intelligent application with predefined processing rules designed for simplified turbine efficiency evaluations. Research studies1 have shown that Rittmeyer 8-paths ultrasonic flowmeters used for efficiency monitoring, can achieve results comparable to thermodynamic methods. 1 Refer e.g. to «TURBINE EFFICIENCY MEASURED BY THERMODYNAMIC METHOD AGAINST USING ULTRASONIC FLOWMETER» by Petr SEVICIK/OSC, Brno, Czec

Turbine Efficiency Monitoring With RISONIC modular flow measurement This type of efficiency monitoring is particularly suitable for the determination of temporal changes in turbine efficiencies. Input variables The following input variables are needed for the evaluation and are continuously evaluated: Electrical power output P from generator (i.e. from energy/power measurement) Flow Q through penstock and turbine (i.e. from flow measurement) Net head i.e. pressure p at turbine housing/entry (i.e. from pressure measurement) Calculation The efficiency is calculated as follows: Limitations Several...