N+2 Advanced Low NOx Combustor Technology Final ReportIn accordance with NASAs technology goals for future subsonic vehicles, this contract identified and developed new combustor concepts toward meeting N+2 generation (2020) LTO (landing and take-off) NOx emissions reduction goal of 75 from the standard adopted at Committee on Aviation Environmental Protection 6 (CAEP6). Based on flame tube emissions, operability, and autoignition testing, one concept was down selected for sector testing at NASA. The N+2 combustor sector successfully demonstrated 75 reduction for LTO NOx (vs. CAEP6) and cruise NOx (vs. 2005 B777-200 reference) while maintaining 99.9 cruise efficiency and no increase in CO and HC emissions.The program also developed enabling technologies for the combustion system including ceramic matrix composites (CMC) liner materials, active combustion control concepts, and laser ignition for improved altitude relight.
Document ID
20170002700
Acquisition Source
Glenn Research Center
Document Type
Contractor Report (CR)
Authors
Herbon, John (General Electric Aviation Cincinnati, OH, United States)
Aicholtz, John (General Electric Aviation Cincinnati, OH, United States)
Hsieh, Shih-Yang (General Electric Aviation Cincinnati, OH, United States)
Viars, Philip (General Electric Aviation Cincinnati, OH, United States)
Birmaher, Shai (General Electric Aviation Cincinnati, OH, United States)
Brown, Dan (General Electric Aviation Cincinnati, OH, United States)
Patel, Nayan (General Electric Aviation Cincinnati, OH, United States)
Carper, Doug (General Electric Aviation Cincinnati, OH, United States)
Cooper, Clay (General Electric Aviation Cincinnati, OH, United States)
Fitzgerald, Russell (General Electric Aviation Cincinnati, OH, United States)