New Engine From GE’s Jenbacher
GE’s Jenbacher has introduced the J920 engine. With electrical efficiency of 48.7 percent and an output of 9.5 megawatts (MW), the new 20-cylinder J920 engine extends GE’s product range in power generation gas engines.
According to GE, the J920 is especially suitable for decentralized, independent power supply in remote, hot or high-altitude regions for use in combined heat and power applications and the stabilization of power grids. The prototype of the engine has been undergoing successful testing on a purpose-built test bench at GE’s Jenbacher manufacturing facilities in Austria since late summer.
A large-scale pilot program is next, during which the new engine will be put into operation for the first time at the “Stadtwerke” (the municipal utility company) of the town of Rosenheim, Germany. Following this test phase, serial production is scheduled to begin, and the new engine should be available for use in applications in 50 and 60 Hz countries in 2012.
The design of the J920 is based on proven core elements from the combustion systems used in Jenbacher 6 series. Moreover, the J920 employs a three-module concept, which results in a standardized generator-set comprised of the engine itself, a generator and an auxiliary module produced at GE’s Jenbacher plant. In addition, the new J920 is equipped with the two-stage turbocharging system. According to GE, particularly high efficiency levels of 90 percent and more can be achieved when the J920 is utilized for combined heat and power. In this case, the J920 module provides fuel savings of more than 130 million kWh of primary energy (76,000 barrels of oil), while preventing more than 7,800t of CO2 emissions the company said.