IGTC-63 Development of Turbine Components for the 100kW Ceramic Gas Turbine(Session C-3 AUTOMOTIVE CERAMIC GAS TURBINES)

概要

論文の詳細を見る
The development of 100kW ceramic gas turbine elements has entered the sixth year of the seven-year project and is making satisfactory progress toward the final targets. We have attained the interim targets of the aerodynamic performances and have been carrying out tests to further improve efficiency. As for ceramic parts, we have changed the material of the turbine rotor to a new one that is excellent in long-sustained and high-temperature strength properties, and have confirmed substantial strength at high temperature through hot-spin tests. In regard to blade-vibration stress, after evaluating it through analyses and experiments, we completed an endurance evaluation at TIT: 1,473K (1,200℃) and a rated speed of 100,000rpm. We are now carrying out endurance experiments at TIT: 1,623K (1,350℃). For ceramic stationary parts, we already finished the evaluations at TIT=1,473K (1,200℃) and are also conducting an endurance evaluation at TIT: 1,623K (1,350℃). Using these parts in a full-assembly test, together with other elements, we confirmed that they cause no functional problem in tests performed at TIT: 1,473K (1,200℃) level up to the rated speed (100,000rpm), and are evaluating their performances.
公益社団法人日本ガスタービン学会の論文