Oxygen-Hydrogen Combustion Turbine Power Generation System

Oxygen-Hydrogen Combustion Turbine Power Generation System

(Kawasaki Heavy Industries, Ltd.)

In order to establish a hydrogen energy society, hydrogen power generation is drawing attention as a large-scale hydrogen utilization technology. Tokyo Tech is promoting R&D on ultra-high efficiency power generation system fundamental technologies in hydrogen utilization leading R&D projects promoted by the NEDO. Joint research with AIST, IAE and Kawasaki Heavy Industries, Ltd., we are promoting research on oxygen-hydrogen combustion turbine power generation systems (since 2018).


We are engaged in the research and development of a closed-cycle gas turbine system that is expected as an ultrahigh-efficiency power generation system beyond the existing open-cycle gas turbine. Its characteristics are as follows: (1) no generation of CO2 nor NOx due to complete combustion of pure oxygen and pure hydrogen, (2) the ultimate high efficiency by taking advantage of the cycle characteristics of water vapor as a working medium obtained by direct combustion.

This project is the first phase (two years) of R&D assuming practical use in the 2040s. We conduct feasibility studies of enclosed gas turbine systems, gain prospects for ensuring system feasibility and economic competitiveness that can achieve 75% power generation efficiency, and show its superiority compared to competing technologies. Our near-term goal is clearing the targets for the stage gate examination scheduled in the first half of FY2019. And after aiming for small-scale machine design, small-scale demonstration tests, and demonstration tests, we aim to introduce commercial machines in the future.