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Low pollution combustor designs for CTOL engines - Results of the Experimental Clean Combustor ProgramThe NASA/Pratt & Whitney Aircraft Experimental Clean Combustor Program is a multi-year, major contract effort. Primary program objectives are the generation of combustor technology for development of advanced commercial CTOL engines with lower exhaust emissions than current aircraft and demonstration of this technology in a full-scale JT9D engine in 1976. This paper describes the pollution and performance goals, Phase I and II test results, and the Phase III combustor hardware, pollution sampling techniques, and test plans. Best results were obtained with the Vorbix concept which employs multiple burning zones and improved fuel preparation and distribution. Substantial reductions were achieved in all pollutant categories, meeting the 1979 EPA standards for NOx, THC, and smoke when extrapolated to JT9D cycle conditions. The Vorbix concept additionally demonstrated the capability for acceptable altitude relight and did not appear to have unsolvable durability or exit temperature distribution problems.
Document ID
19760055287
Document Type
Conference Paper
Authors
Roberts, R. (NASA Lewis Research Center Cleveland, OH, United States)
Peduzzi, A. (United Technologies Corp. Pratt and Whitney Aircraft Div., East Hartford, Conn., United States)
Niedzwiecki, R. W. (NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 8, 2013
Publication Date
July 1, 1976
Subject Category
AIRCRAFT PROPULSION AND POWER
Report/Patent Number
AIAA PAPER 76-762
Meeting Information
Propulsion Conference(Palo Alto, CA)
Funding Number(s)
CONTRACT_GRANT: NAS3-19447
CONTRACT_GRANT: NAS3-18544
CONTRACT_GRANT: NAS3-16829
Distribution Limits
Public
Copyright
Other