POWER-GEN Middle East/WaterWorld Middle East 2015

The Role of Large Gas Turbines in Achieving Cost-Effective, Efficient, Reliable Power Generation

Variations in both gaseous and liquid fuel pricing in the Middle East are driving demand for highly efficient and reliable combined cycle power plants utilizing both natural gas and distillate liquid fuels. Significant fuel production in the region enables global export. Capability for reliable operation on both gaseous and liquid fuels enables value by offering choice of fuel type for export versus domestic use. Power producers are seeking highly efficient, reliable, and operationally flexible solutions that provide long-term profitability in this growing environment. GE’s air-cooled, H-class, combined-cycle gas turbines plants (7HA and 9HA) achieve greater than 61% net combined cycle efficiency while delivering operational flexibility. This presentation will highlight the latest developments in GE’s high efficiency platform, an overview of key technology features with a view of how those features will continue to develop over the next five to ten years. Specific topics include advanced aerodynamic configuration of the compressor and turbine, development of the dual-fuel combustion system, material and coating selection for the hot gas path, and evolution of sealing technologies. Insights and knowledge gained from the validation of the first 9HA gas turbine in GE’s full speed, full load test facility will be discussed.