This paper presents the results of a project aimed at evaluating performance ultrasonic techniques for detecting flaws in Francis turbine runners. work is first phase more ambitious program improving reliability inspection critical areas runners may be utilized to supply power during peak periods, which means that they experience additional load stress associated with start and stop sequences. ...

Increasing the turbine inlet temperature can increase the gas turbine cycle efficiency. In order to increase the turbine inlet temperature significantly, an advanced cooling system has to be essentially developed. Injection of mist to the coolant fluid is considered a promising technique to protect the hot components such as combustor liners, combustor transition pieces, and turbine vanes and b...