DLN 2.6 COMBUSTION SYSTEM UPGRADES

Help your F-class turbine do more

In the past, gas plants were designed 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 more of a priority than ever. Dry Low NOx 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 three Dry Low NOxDLN solutions. What you choose will ultimately depend on you and your plant’s needs but whichever DLN 2.6 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.

DLN 2.6 COMBUSTION SYSTEM UPGRADES

Which DLN solution is right for you?

Want to learn more about DLN? Take a look at each solution’s features and benefits:

DLN 2.6
APPLICABLE TURBINE MODELS
6F, 7F

DLN 2.6+
APPLICABLE TURBINE MODELS
6F, 7F, 9F

7F DLN 2.6+ FLEX
APPLICABLE TURBINE MODELS
7F

Get improved O&M outage interval costs.
Take advantage of improved capacity, minimum fuel burn, and O&M part/outage costs.
Reduce minimum fuel burn by 25%, leading to annual fuel savings of $1-4M
  DLN 2.6 DLN 2.6+ 7F DLN 2.6+ FLEX

 

APPLICABLE TURBINE MODELS

APPLICABLE TURBINE MODELS

APPLICABLE TURBINE MODELS

 

6F, 7F

6F, 7F, 9F

7F

  Get improved O&M outage interval costs. Take advantage of improved capacity, minimum fuel burn, and O&M part/outage costs. Reduce minimum fuel burn by 25%, leading to annual fuel savings of $1-4M

Core benefits

Outage extension
  • Outage extension
  • Emissions reduction
  • Enhanced Load Range
  • Emissions reduction
  • Increased operational flexibility
  • Lower turndown
  • Outage extension
  • Increased utilization
  • NOx/CO-compliant turndown as low as 25%

Emissions range

<9ppm

NOX AND CO2 REDUCTION

5-9%

NOX REDUCTION

5-9%

NOX REDUCTION

Availability and
maintenance cost

24,000

FACTORED FIRED HOURS (FFH)

900

Factored Fired Starts (FFS)

32,000

FACTORED FIRED HOURS (FFH)

1,250

Factored Fired Starts (FFS)

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
  • Load range expansion by ~100 MW
  • Lower turndown capability to 25% GT load

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

Add-ons

  • Improve operability when combined with OpFlex controls software including AutoTune, Fast Start, Cold-Day Performance, and Extended Turndown
  • Eliminate costly diluent injection or selective catalytic reduction (SCR) systems
  • Accelerate start times with OpFlex Fast Start, Variable Load Path, ST Agility, or ST Warming Blankets
  • Add maintenance neutral peaking with Dispatch Optimizer
  • Improve operability when combined with OpFlex controls software including AutoTune,and Cold-Day Performance
  • Eliminate costly diluent injection or selective catalytic reduction (SCR) systems
  • Enhance Advanced Gas Path (AGP) and compressor upgrade performance and operability
Product

DLN 2.6

APPLICABLE TURBINE MODELS

6F, 7F

Get improved O&M outage interval costs.

Core benefits Outage extension
Emissions range

<9ppm

NOX AND CO2 REDUCTION

Availability and maintenance cost

24,000

FACTORED FIRED HOURS (FFH)

900

Factored Fired Starts (FFS)

Operational flexibility* Extend turndown to as low as 48% of baseload
Fuel flexibility Over a range of natural gas or distillate fuel compositions
Add-ons
  • Improve operability when combined with OpFlex controls software including AutoTune, Fast Start, Cold-Day Performance, and Extended Turndown
  • Eliminate costly diluent injection or selective catalytic reduction (SCR) systems

Product

DLN 2.6+

APPLICABLE TURBINE MODELS

6F, 7F, 9F

Take advantage of improved capacity, minimum fuel burn, and O&M part/outage costs.

Core benefits
  • Outage extension
  • Emissions reduction
  • Enhanced Load Range
Emissions range

5-9%

NOX REDUCTION

Availability and maintenance cost

32,000

FACTORED FIRED HOURS (FFH)

1,250

Factored Fired Starts (FFS)

Operational flexibility* Extend turndown to as low as 38% of baseload
Fuel flexibility Broad fuel flexibility with up to 30% Modified Wobbe Index (MWI), 25% ethane/propane, 20% hydrogen and a wide range of distillate fuels
Add-ons
  • Accelerate start times with OpFlex Fast Start, Variable Load Path, ST Agility, or ST Warming Blankets
  • Add maintenance neutral peaking with Dispatch Optimizer
  • Improve operability when combined with OpFlex controls software including AutoTune,and Cold-Day Performance
  • Eliminate costly diluent injection or selective catalytic reduction (SCR) systems
  • Enhance Advanced Gas Path (AGP) and compressor upgrade performance and operability

Product

7F DLN 2.6+ FLEX

APPLICABLE TURBINE MODELS

7F

Reduce minimum fuel burn by 25%, leading to annual fuel savings of $1-4M

Core benefits
  • Emissions reduction
  • Increased operational flexibility
  • Lower turndown
  • Outage extension
  • Increased utilization
  • NOx/CO-compliant turndown as low as 25%
Emissions range

5-9%

NOX REDUCTION

Availability and maintenance cost

32,000

FACTORED FIRED HOURS (FFH)

1,250

Factored Fired Starts (FFS)

Operational flexibility*
  • Load range expansion by ~100 MW
  • Lower turndown capability to 25% GT load
Fuel flexibility Broad fuel flexibility with up to 30% Modified Wobbe Index (MWI), 25% ethane/propane, 20% hydrogen and a wide range of distillate fuels
Add-ons
  • Accelerate start times with OpFlex Fast Start, Variable Load Path, ST Agility, or ST Warming Blankets
  • Add maintenance neutral peaking with Dispatch Optimizer
  • Improve operability when combined with OpFlex controls software including AutoTune,and Cold-Day Performance
  • Eliminate costly diluent injection or selective catalytic reduction (SCR) systems 
  • Enhance Advanced Gas Path (AGP) and compressor upgrade performance and operability

SLIDE TO SEE MORE
DLN-training
Want to learn more about DLN 2.6+ Flex?
Check out the outline of our “Control System - DLN 2.6+ Flex Combustor” course. This one-day course will get you up-to-date with the hardware and system changes included with upgrading your current fuel gas system to a new DLN 2.6+ Flex Combustor. For maintenance technicians, gas fuel valve calibration will be reviewed.
DOWNLOAD COURSE OUTLINE

7F DLN 2.6 TECHNOLOGY

A 30-year journey

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.

DLN+ History Infographic_final
DLN+ History Infographic_final
duck-curve

GE REPORTS

Ducking the Duck Curve

GE’s gas turbines boast a long history of burning hydrogen blended with natural gas, which has a long list of benefits, in a wide range of concentrations.

 

Ready to get started?

Contact a GE specialist today

CONTACT GE TODAY