Mitsubishi Heavy Industries (MHI) has achieved the world's highest turbine inlet temperature of 1600 °C, with its J Series gas turbine.
The record was achieved during test operation of the turbine, which began in February this year, at the combined-cycle power plant for verification testing at MHI's Takasago Machinery Works in Hyogo Prefecture, Japan.
With this accomplishment, MHI completes the final confirmation in the testing of the new gas turbine. Six units of the J Series turbine are slated for delivery to the Himeji No.2 Power Station of Kansai Electric Power Company in Japan.
The gas turbine that marked the latest achievement is the 60 Hz M501J, which MHI proprietarily developed in the spring of 2009. The new turbine is able to withstand a temperature 100 degrees higher than the 1500° C G Series gas turbines, which was the highest temperature until now.
In general the higher a gas turbine's inlet temperature, the greater is the turbine's thermal efficiency. The J Class gas turbine has achieved a rated power output of about 320 MW (ISO basis) and 460 MW in gas turbine combined-cycle power generation applications, in which heat recovery steam generators and steam turbines are also used. MHI has also confirmed gross thermal efficiency exceeding 60 per cent.
In the J-Series, nitrogen oxide (NOx) emissions, which usually increase as combustion temperature rises, are suppressed to a level equivalent to that of current models, in order to address global environmental issues.
The combined-cycle power plant for verification testing, where the J Series gas turbine was tested, is located at MHI's Takasago Machinery Works, which is in charge of developing the company's gas turbines integrally, from development and design to manufacturing and testing.
Following the 60 Hz M501J, the Takasago Machinery Works is currently developing the 50 Hz M701J gas turbine, targeting first shipments in 2014.
With the achievement of its targeted results in the verification testing of the new-generation J-Series gas turbine, the company will now further accelerate related marketing activities. MHI also aims to apply the J-Series verification results to further development of technologies that will enable even higher temperature gas turbines.