Allison engine ATS program technical review

摘要

Gas turbines in industrial and utility applications can help meet future national and worldwide power generation requirements. Implementation of the ATS Program will also keep U.S. manufacturers on the cutting edge of turbine technology for power generation applications and enhance the nation's economic competitiveness. Allison's ATS addresses the program goals in the following manner: (1) Efficiency - The turbine selected for the ATS uses Allison's latest single crystal alloys incorporating the most efficient component cooling technology Allison has developed. These features allow the turbine to operate at a rotor inlet temperature (RIT) of 1427(degrees)C (2600(degrees)F). The compression system for this engine has an overall pressure ratio of more than 20:1 and is based on technology previously demonstrated at Allison. The engine that uses these components will demonstrate a thermal efficiency that is 18% better than the best in class today. (2) Environment - The combustion system selected for this engine incorporates a catalytically stabilized, lean premix system with ceramic components requiring no significant wall cooling. This system will achieve acceptance in severe nonattainment areas, producing less than 8 ppm for oxides of nitrogen (NOx), with acceptable carbon monoxide (CO) and unburned hydrocarbon (UHC). (3) Fuel Flexibility - Allison has production engines in commercial service that are operating on biomass fuels. Previous DOE-funded programs have allowed Allison to develop and demonstrate coal-fueled gas turbine technology. (4) Cost of Power - The busbar cost of energy for the Allison ATS ranges from 23.6 to 27.6% lower than the current state of the art for systems meeting ATS environmental requirements. (5) Reliability, Availability, and Maintainability - The Allison ATS will be designed to have high reliability and low maintenance costs. Critical components will be designed using Allison's latest life analysis methods.