Abstract
Hydrogen is considered as a promising zero carbon battery fuel to deliver balancing power for the future electricity system with an increasing share of variable renewable power generation. Flame flashback is one of the main challenges for the application of hydrogen in gas turbines. Lean premixed hydrogen combustion is more prone to flashback than natural gas combustion due to higher flame speed and Lewis number effect. The TU Delft developed a boundary layer flashback model based on a previous work by TU Munich. The TU Delft model includes amongst others the effect of the laminar flame speed, boundary layer profile, Lewis number and adverse pressure gradient of the mean flow. The model was successfully validated on academic experiments from TU Munich. In the present paper the turbulent flame speed closure in the TU Delft flashback model is updated for gas turbine like conditions using experimental data from the University of California, Irvine (UCI). This updated model is validated against data from the Paul Scherrer Institute (PSI) and back tested on the original academic experiments from TU Munich. The updated TU Delft boundary layer flashback model and the flashback model from the Paul Scherrer Institute (PSI) have been applied to a scaled version of the FlamesheetTM combustor. The outcome of the PSI flashback model correlates very well with test results from the TU Delft laboratory, the TU Delft flashback model only with the original flame speed correlation.
Original language | English |
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Title of host publication | Proceedings of ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition |
Subtitle of host publication | Combustion, Fuels, and Emissions |
Publisher | The American Society of Mechanical Engineers (ASME) |
Number of pages | 10 |
Volume | 3A |
ISBN (Electronic) | 978-07918-8599-4 |
DOIs | |
Publication status | Published - 2022 |
Event | ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022 - Rotterdam, Netherlands Duration: 13 Jun 2022 → 17 Jun 2022 |
Conference
Conference | ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022 |
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Country/Territory | Netherlands |
City | Rotterdam |
Period | 13/06/22 → 17/06/22 |
Keywords
- flashback
- hydrogen combustion