GE announces gas turbine efficiency record

GE has achieved a record-breaking 64 per cent net efficiency with its 9HA.02 gas turbine, the company announced this week at POWER-GEN International in Las Vegas, US.

The new combustion system has been successfully tested at full-load and full-speed at GE’s test stand in Greenville, South Carolina, the firm said.

Under specified conditions, GE said the 64 per cent efficiency can be achieved with a total output of 826 MW in 1x1 combined-cycle configuration.

The company’s customers can order HA-based combined-cycle plants quoted at 64+ per cent in 2018, compared to the previous 63.7 per cent efficiency for 2017 orders. In addition, GE Power said it is on track to achieve 65 per cent efficiency by the early 2020s.

The record was made possible by innovation in additive manufacturing and 3D printing, the company said.

According to GE, its engineers developed additively-manufactured components for the 9HA’s combustion system, using metal 3D printing to produce new geometries that could improve the premixing of fuel and air.

Joe Mastrangelo, president and CEO of GE’s Gas Power Systems business, said the HA “is our most advanced gas turbine technology, and we’ve never stopped pushing the boundaries of what it can do”.

Watch this space for International Digital Editor Diarmaid Williams’ interview with GE at POWER-GEN International.






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