Joint project H2BCTurbo? Subproject: H2 resistance under thermocyclic stress

H2BCTurbo - Effect of H2 combustion on the durability of thermal insulation layers in the area of the hot gas tract of gas turbines? Sub-project: H2 resistance under thermocyclic stress

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The combustion of hydrogen in a gas turbine was identified as a sustainable solution for the reduction of CO2 emissions. However, the combustion of pure hydrogen leads to a significant increase in the water content in the exhaust gas stream, which has consequences for the corrosion or oxidation of the components exposed to the combustion atmosphere. The changes in the corrosion process caused by hydrogen combustion and their effects on the lifespan of the components have so far hardly been investigated and are the subject of investigation in this project. The aim of this project is to systematically investigate the effectiveness of such changes on the lifespan of thermal insulation layer systems on rotating and stationary turbine components. Since the lifespan models for such protective layer systems often form the basis for the repair intervals of modern gas turbines, the findings obtained represent an essential pillar for fail-safe and economical operation under the new conditions.

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