MHI introduces fast start-up natural gas-fired turbine

Mitsubishi Heavy Industries Ltd. (MHI) has developed and is now marketing the 310 MW M501JAC gas turbine, an air-cooled version of the company’s steam-cooled J-Series gas turbine introduced in 2009.

The M501JAC features reduced start-up time while maintaining the same level of performance as the M501J. The turbine also features an efficiency rating above 41 percent. In a gas turbine combined-cycle (GTCC) arrangement, MHI pursues output of 450 MW and an efficiency rating in excess of 61 percent with a one-on-one single shaft configuration.

With the addition of the air-cooled M501JAC, MHI will be in a position to respond ever more precisely to diverse needs for advanced systems in the global market for power generation systems.

GTCC is a power generating system that combines power generation by gas turbine and generation by steam turbine by utilizing the exhaust energy from the gas turbine. A GTCC plant equipped with a J-Series gas turbine is capable of reducing CO2 emissions by half compared to a conventional coal-fired power generation plant, MHI said.

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