Dry Low NOx combustor upgrades
Our Dry Low NOx (DLN) upgrades enhance your plant flexibility and help your F-class turbine do more.
What is DLN?
In the past, gas plants were engineered to provide base load efficient power, but today, with the dramatic increase of weather-dependent solar and wind capacity, gas plants are being asked to provide critical renewable-balancing grid support, making flexibility a priority now more than ever. DLN combustor systems not only provide this flexibility, but also help meet the needs of increasing emissions regulations. To remain competitive, F-class plant owners and operators must address the competing challenges of pressure to comply with more stringent emissions regulations, changing operating profiles that go beyond a plant’s original design, and finding innovative ways to stay profitable.
Building on a rich heritage of combustion leadership, our DLN combustion technology delivers industry-leading low emissions. For F class operators, we offer four DLN 2.6 solutions. What you choose will ultimately depend on you and your plant’s needs, but whichever DLN combustion system solution is right for you, rest assured that you’ll get leading-edge expertise and the operational flexibility you need, helping you reduce emissions and start up faster than ever before.
Want to learn more about DLN? Take a look at each solution’s features and benefits:
DLN 2.6 | DLN 2.6+ | 7F DLN 2.6+ FLEX | |
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Applicable turbine models | 6F, 7F | 6F, 7F, 9F | 7F |
Key value statement | Get improved O&M outage interval costs. | Take advantage of improved capacity, minimum fuel burn, and O&M part/outage costs. | Turndown to ~26% GT load using GE's Axial Fuel Staging (AFS) technology. Reduce minimum fuel burn by 25%, leading to annual fuel savings of $1-4M. |
Core benefits | Outage extension |
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Emissions range | <9ppm NOx and CO2 | Up to 15ppm NOX (9F) <9ppm NOX (7F) |
<9ppm NOX |
Availability and maintenance cost |
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Operational flexibility (exact figures may vary by model) | Extend turndown to as low as 48% of baseload | Extend turndown to as low as 38% of baseload |
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Fuel flexibility | Over a range of natural gas or distillate fuel compositions | Broad fuel flexibility with up to 30% Modified Wobbe Index (MWI), 25% ethane/propane, 20% hydrogen and a wide range of distillate fuels | Broad fuel flexibility with up to 30% Modified Wobbe Index (MWI), 25% ethane/propane, 5-10% hydrogen and a wide range of distillate fuels |
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*For a 2x1 configuration
7F DLN 2.6 technology
The 7F frame was developed at a time where deregulation and global warming were emerging factors in the power industry. GE has continued to evolve its F-class and DLN technologies, maintaining them as proven standards for economical, efficient, cleaner power generation.
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