Vol. 52 No. 4 (2015)   New Products & Technologies
Technical Papers

Development of Reliability Verification Technology for Gas Turbine Rotor Blades Using an Actual Unit (High-temperature Non-contact Blade Vibration Measurement Technology)

KAZUHIRO TAMURA
MASAKI ONO
SHUNSUKE TORII
TETSUYA SHIMMYO
AKIO KONDOU

As an economical and clean thermal power generating facility, gas turbine combined cycle power generation is attracting attention, and the market is expected to expand across the world on a long-term basis. While developing the world's first 1,600°C-class Type-J gas turbine for better performance, Mitsubishi Hitachi Power Systems, Ltd. (MHPS) also proceeded with research for the development of high-temperature special measurement technology that can be applied under actual operating conditions, with a view to obtaining technological evaluation data on newly-developed components and using it as feedback in design. This report introduces our high-temperature non-contact blade vibration measurement technology, which enables the examination of the turbine's first-stage rotor blade vibrations. This technology is applicable to the high-temperature (max. 1,600°C) environment of actual gas turbines.