Leveraging GE’s industry-leading DLN 2.6+ combustor and combining it with new Axial Fuel Staging (AFS) technology, the Flex solution is a comprehensive upgrade within GE’s suite of offerings for 7F gas turbines.
The combustor features axial (sequential) staging of combustion in two zones allowing for increased firing temperature at baseload (while maintaining the same NOx level) by operating the later/second stage hotter than the first/primary stage. During low load operation as the gas turbine firing temperature is reduced, percentage fuel split in the staged fuel system can either be reduced significantly or turned off, thereby keeping the overall combustion system into emissions compliance over a wider range of firing temperatures.
With a 15 percent lower turndown capability, this technology also gives GE’s 7F customers the flexibility to stay running more frequently while burning less fuel and reducing emissions. This lower load operation can position 7F operators to respond faster to bidding opportunities in regions that experience frequent shifts in grid demand due to renewable power fluctuations. The combination of lowering operating costs and capturing new revenue streams can help GE customers grow profitability through more competitive operating profiles.
Other benefits include:
GE has 28 years of experience in 7F gas turbine technology with more than 50 million hours of fleet operating data and 150 gigawatts of installed across approximately 900 units at 350 sites globally. It introduced its industry-leading DLN 2.6+ technology in 2005.
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