TY - GEN
T1 - A novel ultra-low NOx hydrogen combustor based on the Lean Azimuthal Flame concept
AU - Oliveira, Pedro M. de
AU - Miniero, Luigi
AU - Pandey, Khushboo
AU - Noiray, Nicolas
AU - Mastorakos, Epaminondas
PY - 2023/1/19
Y1 - 2023/1/19
N2 - A novel gas turbine combustor concept operating with 100% H2 has been demonstrated at atmospheric conditions. The arrangement is based on the Lean Azimuthal Flame, where high-speed air jets are injected against the net flow and fuel injection, causing entrainment and recirculation of combustion products, promoting turbulence and mixing before reaction with hydrogen occurs. Emission measurements at the combustor outlet at atmospheric pressure revealed single-digit NO ppm levels, between 3–7 ppm for effective combustion powers between 3–20 kW. High-speed OH∗ imaging revealed a very stable flame, with no intermittent dynamics observed within a wide range of operating conditions. The results demonstrate great promise for pure hydrogen combustion.
AB - A novel gas turbine combustor concept operating with 100% H2 has been demonstrated at atmospheric conditions. The arrangement is based on the Lean Azimuthal Flame, where high-speed air jets are injected against the net flow and fuel injection, causing entrainment and recirculation of combustion products, promoting turbulence and mixing before reaction with hydrogen occurs. Emission measurements at the combustor outlet at atmospheric pressure revealed single-digit NO ppm levels, between 3–7 ppm for effective combustion powers between 3–20 kW. High-speed OH∗ imaging revealed a very stable flame, with no intermittent dynamics observed within a wide range of operating conditions. The results demonstrate great promise for pure hydrogen combustion.
UR - http://dx.doi.org/10.2514/6.2023-1488
U2 - 10.2514/6.2023-1488
DO - 10.2514/6.2023-1488
M3 - Conference contribution
BT - AIAA SCITECH 2023 Forum
PB - Aerospace Research Central
ER -