Turbomachinery Laboratory, Texas A&M Engineering Experiment Station
Abstract
TutorialThe main driver to define the time between overhauls of a gas turbine is the life of the hot components. For an Oil&Gas operator, a turbine overhaul represents a major cost and therefore is a key point for performance improvement. This paper reviews the main damaging mechanisms of the hot sections of gas turbines, the available models, and provides orders of magnitudes of the impact of the different factors in the life of components. It also presents the operational experience of Total through cases for which the time between overhauls was successfully extended
