GE introduces new turbocharged natural gas turbine

Jenbach, Austria, June 11, 2010 – GE has developed a two-stage turbocharged gas engine and is applying this technology to its Jenbacher J624 gas engine.

The new engine provides output and efficiency increases compared to the single turbocharged version and is particularly well-suited for operation in hot environments and combined heat and power applications.

It was introduced at an official product launch event held today at GE’s gas engine headquarters in Jenbach, Austria, which more than 35 customers and distributors attended.

“We are proud to be the pilot customer for this new J624 gas engine with two-stage turbocharging,” says Jaap Noordam, owner of Red Harvest. “The new engine not only provides us with higher efficiency, but also offers us higher flexibility for our CHP operations.”

With the new system, which GE developed with specialists from ABB Turbo Systems Ltd, the J624 achieves about 10 percent higher output, increasing from 4 MW to 4.4 MW and offers an electrical efficiency of 46.5 percent, an increase of about 1 percentage point.

Introduced by GE in 2007, the J624 is the world’s first 24-cylinder gas engine for commercial power generation, used in various applications.

The two-stage turbocharging offers a much higher charging efficiency, which significantly contributes to the engine’s overall increased efficiency. In addition to the higher charging pressure, this technology also significantly improves the power density of the engine allowing it to run beyond 22 bar BMEP1 (brake mean effective pressure).

Applications for the new two-stage turbocharged gas engine include independent power producers, CHP, trigeneration and special applications using natural gas fuel, as well as a wide range of non-natural gas fuels. The new engine will be available to customers worldwide by the summer of 2011.

 

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