Autoignition Delay Times of Hydrogen/Ammonia/Air Mixtures at Gas Turbine Relevant Conditions

Pierro, Michael; Urso, Justin J.; Kinney, Cory; Dennis, Christopher W.; McGaunn, Jonathan; Khaleel Rahman, Ramees; Vasu, Subith

doi:10.2514/6.2023-0496

Autoignition Delay Times of Hydrogen/Ammonia/Air Mixtures at Gas Turbine Relevant Conditions

Conference · 18 January 2023 · AIAA SCITECH 2023 Forum

DOI:https://doi.org/10.2514/6.2023-0496· OSTI ID:2406159

Pierro, Michael ^[1]; Urso, Justin J. ^[2]; Kinney, Cory ^[2]; Dennis, Christopher W. ^[2]; McGaunn, Jonathan ^[2]; Khaleel Rahman, Ramees ^[2]; Vasu, Subith ^[2]

University of Central Florida; University of Central Florida
University of Central Florida

This study reports the autoignition delay times of hydrogen/ammonia mixtures at conditions similar to turbine engine operating conditions (23 bar, 1100-1250 K). H2 was mixed with NH3 and shock-heated using synthetic air as the oxidizer. The data is compared against the current state-of-the-art NH3 chemical kinetic mechanisms found in the literature for undiluted fuel validation and refinement. Experiments were performed in a high-pressure shock tube and have shown detonation pressures reaching 200 bar. Lower temperature points have also exhibited non-ideal behavior, which calls for extensive chemical analysis to accurately report the IDTs. This work will aid in the design of air-breathing turbine engines using hydrogen and ammonia as fuel and develop a well-built NH3-based chemical kinetic mechanism.

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Research Organization:: University of Central Florida

Sponsoring Organization:: USDOE; USDOE Office of Fossil Energy (FE), Office of Clean Energy Systems (FE-22)

DOE Contract Number:: FE0032072

OSTI ID:: 2406159

Journal Information:: AIAA SCITECH 2023 Forum, Journal Name: AIAA SCITECH 2023 Forum

Country of Publication:: United States

Language:: English

References (14)

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