DLN Evo Combustion Technology Development for a High-Hydrogen Flexible F-Class Retrofit

作者：Michael Hughes, Jonathan D. Berry, Wei Zhao, B. W. Crawley, Travis Onyima, Homayoon Feiz, Elizabeth Paasche, Laurent Cretegny, Seung-Hyuck Hong, Tommy Genova, Hannah Bower · 年份：2023 · DOI：10.1115/gt2023-101797 · 被引用次数：6 · 研究领域：Combustion and flame dynamics、Advanced Combustion Engine Technologies、Advanced Power Generation Technologies

Abstract GE Gas Power is nearing completion of technology development towards a retrofittable Dry Low NOx (DLN) combustion system for F-Class gas turbines. The “DLN Evo” combustor is envisioned to give existing power plants a path to decarbonize by significantly increasing their Hydrogen capability vs. current GE DLN systems. Hydrogen may be from any source be it electrolysis, reforming, ammonia, or other. Further attributes of the DLN Evo that may benefit operators include reduced min turndown load, reduced NOX emissions, reduced startup emissions, and increased fuel flexibility compared to today’s DLN 2.6+ based systems. This program builds on previous internal technology development programs, previous collaborations with the US Department of Energy, and the successfully fielded DLN 2.6e combustion system currently in operation on the latest GE HA class gas turbines. The DLN Evo combustor is the application of GE Gas Power’s latest experience and most advanced technology to F-Class as turbines. This paper describes innovative approaches and technologies applied to create the new system. The Three Key Technology elements are the Compact Flames Micro Mixer (CFMM), Next Gen Axial Fuel Staging (NG-AFS) injectors, and unibody cooling that integrates with the Axial Fuel Stage (AFS). These technologies are, for the first time, applied to a can-annular system, and further advanced through extensive analytical simulation and screened via subscale testing at GE Research (GER). The fu...