Vol. 54 No. 3 (2017)   Mitsubishi Hitachi Power Systems
Technical Papers

Key Technologies for 1700°C Class Ultra High Temperature Gas Turbine

KOICHI ISHIZAKA
KEIJIRO SAITOH
EISAKU ITO
MASANORI YURI
JUNICHIRO MASADA

Gas-turbine combined-cycle power generation is expected to lead to a long-term extension of power-generation markets by providing the most clean and economic thermal power plants which coexist with renewable energy. We are developing technologies for 1700°C-class gas turbines as part of a national project to further improve the performance, and some of the latest developed technologies have been applied to the development of the world's first 1600°C-class J-series gas turbine and next-generation high-efficiency gas turbines.1 In this article, the technology development status, together with examples of technologies developed toward the application of next-generation 1700°C-class gas turbines, is described.