Siemens Energy, Inc. was awarded a contract by the U.S. Department of Energy for the first two phases of the Advanced Hydrogen Turbine Development Program. The 3-phase, multi-year program goals are to develop an advanced syngas, hydrogen and natural gas fired gas turbine fully integrated into coal-based Integrated Gasification Combined Cycle (IGCC) plants. The program goal is to demonstrate by 2010 a 2–3% point improvement in combined cycle efficiency above the baseline, 20–30% reduction in combined cycle capital cost and emissions of 2 ppm NOx @ 15% O2. The 2012 goal is for IGCC-based power with carbon capture. Furthermore, by 2015, the goal is to demonstrate a 3–5% point improvement in combined cycle efficiency above the baseline, and 2 ppm NOx @ 15% O2. Recent activities have focused on the initiation of Phase 2. This included developing component level technologies and systems required to meet the 2010 and 2015 project objectives, developing validation test plans for systems and components, performing validation testing of component technologies, and demonstrating through system studies the ability to attain the 2010 and 2015 Turbine Program performance goals. The development effort was focused on engine cycles, combustion technology development and testing, turbine aerodynamics/cooling, modular component technology, materials/coatings technologies and engine system integration/flexibility considerations. The first series of oxidation and coating compatibility testing of modified superalloys was completed. High pressure combustion testing was performed with syngas fuels on a modified premixed combustor. High pressure testing of a second premixed combustion system was also performed. Novel turbine airfoil concept testing continued. Conceptual design reviews and risk analyses were carried out on new gas turbine components. Studies were conducted on gas turbine/IGCC plant integration, fuel dilution effects, varying air integration, plant performance and plant emissions. The results of these studies and developments provide a firm platform for completing the advanced Hydrogen Turbine technologies development in Phase 2.

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