Borescope Techniques Applied To Maintenance Practices On Marine Heavy-Duty Gas Turbines

Abstract

This paper describes the maintenance requirements of the Heavy-Duty Gas Turbine Marine Applications and the accessibility designed into the turbine to allow the operator to carry out both required repair work and classification society machinery surveys within the minimum time dictated by the vessels dry-docking periods and time in· port during loading and unloading operations. Because of the marine requirements imposed on present day vessels including fast turn around and maximum availability, it is important to design a maintenance program using all available maintenance tools, such as the borescope, in order to evaluate the internal condition of the turbine with minimum disassembly and outage time.