Advanced Clean Combustion for hydrogen-basEd Power Technology

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Hydrogen-fired gas turbines can potentially produce electric power (or mechanical work) at unmatched scale with zero carbon emissions. Furthermore, they will yield this potential at high cycle efficiency and with virtually zero emissions of atmospheric pollutants once advanced Dry Low Emission (DLE) combustion systems, able to robustly and reliably stabilise premixed hydrogen flames at high pressures, are successfully developed. However, the development of such advanced DLE combustion systems is presently hampered by the existence of knowledge gaps about premixed hydrogen combustion at high pressure. More specifically, a crucial lack of knowledge concerns the pressure dependence of the turbulent burning rate in premixed hydrogen flames. This is due to the fundamental combustion characteristics of premixed hydrogen flames, largely deviating from those of natural gas and other more conventional hydrocarbons and affects our ability to accurately predict the stability limits of these flames.