March 2014: Guide vanes aerodynamic loading and vibrations
by Kieran Monk
Production – 2,102 kWhrs Operational hours – 97 Hrs
Throughout the past 6 months the Pico team had been joined by a mechanical engineering Masters student Mario Vieria from IST University. A number of years ago the generator side turbine guide vanes where damaged by fracturing of the metal vane plates. The causes was believed to be a result of aerodynamic loading from flow separation over the turbine blades associated with the well-known wells turbine stall effect. His thesis was an investigation on the reason for the failure and the old guide vanes.