GE Vernova's Breakthrough: DLN Hydrogen Combustor Technology Advancements
Key Ideas
  • GE Vernova completed a successful validation test campaign for its DLN hydrogen combustor technology, demonstrating operation on natural gas and hydrogen with emissions below 25ppm NOx.
  • The new DLN NOx combustor system is planned for availability in 2026 for B- and E-class gas turbines, offering benefits like increased efficiency and reduced NOx emissions.
  • The prototype performed well with low noise levels even on pure hydrogen, showcasing higher availability and longer maintenance intervals compared to current combustors.
  • The micromixer-based fuel air pre-mixer is foundational to the prototype's capability, with years of research and development focused on improving hydrogen combustion dynamics.
GE Vernova has announced the successful completion of a validation test campaign for its Dry Low NOx (DLN) hydrogen combustor technology at its Global Technology Center in Greenville, South Carolina. The tests demonstrated the system's capability to operate on natural gas, hydrogen blends, and 100% hydrogen with emissions below 25ppm NOx. This new DLN combustor system is planned for availability in 2026 for both new and existing B- and E-class gas turbines. GE Vernova's Carbon Solutions leader highlighted the engineering challenges of safely burning 100% hydrogen due to its faster flame speed and risk of flashback. However, the test campaign showed robust operation without flashback across various loads and fuel types. The prototype also exhibited low noise levels even on pure hydrogen and is expected to provide higher availability and longer maintenance intervals compared to current DLN combustors. The technology's foundation lies in a micromixer-based fuel air pre-mixer developed through years of research, with recent advancements focusing on improving hydrogen combustion dynamics. GE Vernova's H2 DLN combustor technology is expected to offer benefits like increased efficiency, improved availability, longer maintenance intervals, and reduced NOx emissions, eliminating the need for diluents like water. With an installed base of around 2,800 units worldwide, GE Vernova aims to provide maximum flexibility in operability for industrial gas turbines owners on natural gas, hydrogen, or blends without the use of diluents like water for emissions abatement.
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