Development of Advanced TBC for 1650℃ Class Gas Turbine

Rise of Turbine Inlet Temperature plays a significant role to improve thermal efficiency of GTCC. And MHI Group participates Japanese National Project since 2004, "Development of 1700 degC class gas turbine components technology". Advanced TBC developed through the project for has been suceeded in field operations of 1600 degC class gas turbine. Still, it is necessary to improve thermal insulation ability more to achieve higher turbine inlet temperature. Advanced TBC was assessed to be capable for thicker for various components test. Following the components development, hot parts sprayed with Thicker advanced TBC were verified in real operation. In conclusion, Advanced TBC developed in the project has excellent durability, which allows to be thick enough to contributes the development of 1650 degC class JAC gas turbine. Consequently, MHI Group has suceeded in verifying JAC gas turbine in 2020. MHI is keep testing it in JAC gas turbine demonstration facility for long term reliability.