Press Information
Tokyo, September 26, 2011 - Mitsubishi Heavy Industries, Ltd. (MHI) has introduced the M701F5 gas turbine using MHI's own technology. Featuring a newly upgraded and more flexible design, the M701F5 will operate at a turbine inlet temperature (TIT) of 1,500 degrees C, a level previously obtainable only with G Class and higher specification. The M701F5 features high efficiency and low NOx emissions while maintaining the exceptionally high reliability exhibited by the preceding MHI F fleet. The company is currently engaged in manufacturing activities in the runup to the new turbine's commercial production.
The M701F5 gas turbine achieves a rated simple cycle power output of near 350 MW (ISO basis) and 520 MW in combined-cycle (GTCC) power generation. In GTCC applications, high-temperature exhaust gas from the gas turbine is used to generate power by a steam turbine. MHI is aiming to achieve GTCC thermal efficiency in excess of 61%.
MHI produces gas turbines on a vertically integrated basis, from conceptual and detailed designs to verification and manufacturing, at its Takasago Research & Development Center and Takasago Machinery Works in Takasago, Hyogo Prefecture. MHI operates a verification combined-cycle power plant at the site to validate advanced turbine technology, with capability to test air-cooled as well as steam-cooled engines. The company is currently conducting stringent verification tests on the M501J gas turbine and its core technologies. The results of the J-series validation have provided invaluable data for the M701F5's components, which are derived from the J design.
With GTCC type power generation, gas and steam turbines are used in combination to generate electricity, utilizing high-temperature exhaust gas from the gas turbine. This configuration enables GTCC power plants to achieve higher thermal efficiency than other plants based on earlier technologies, such as conventional boiler steam turbine plants. Higher efficiency results in reduced fuel consumption relative to electricity output and lower CO2 emissions, making GTCC plants friendlier to the environment. GTCC power generation with the M701F5 will achieve CO2 emissions 50% lower than conventional coal-fired power generation (comparison with MHI power plants). In this way, the newly developed turbine is expected to contribute significantly to worldwide efforts to reduce global warming.
Notes:
1.NACA: blade profile as defined by the former National Advisory Committee for Aeronautics (reorganized into the National Aeronautics and Space Administration [NASA] in 1958)
2.CDA: controlled diffusion airfoil
About MHI Group
Mitsubishi Heavy Industries (MHI) Group is one of the world’s leading industrial groups, spanning energy, smart infrastructure, industrial machinery, aerospace and defense. MHI Group combines cutting-edge technology with deep experience to deliver innovative, integrated solutions that help to realize a carbon neutral world, improve the quality of life and ensure a safer world. For more information, please visit www.mhi.com or follow our insights and stories on spectra.mhi.com.