NDLI: Experimental combustor study program

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Experimental combustor study program

Content Provider	NASA Technical Reports Server (NTRS)
Author	Kasper, J. M. Ekstedt, E. E.
Copyright Year	1980
Description	Advanced combustor concepts are evaluated as a means of accommodating possible future broad specification fuels. The three advanced double annular combustor concepts consisted of (1) a concept employing high pressure drop fuel nozzles for improved atomization, (2) a concept with premixing tubes in the main stage, and (3) a concept with the pilot stage on the inside and the main stage on the sideout, which is the reverse of the other two concepts. All of the advanced concepts show promise for reduced sensitivity to fuel hydrogen content. Some hardware problems were encountered, but these problems could be quickly resolved if refinement tests were conducted. The design with the premixing main stage was selected for a parametric test because of its low NOx emissions level, carbon free dome, and very low dome temperatures which were essentially independent of fuel type. The other advanced designs also had low done temperatures. The premixing dome design liner temperatures exhibited less sensitivity to fuel type than did the base-line combustor, although more sensitivity than observed for concept 1. The inner liner hot spot and the observed smoke results for the premixing design suggest that the fuel-air mixture was not as uniform as desired.
File Size	1269213
Page Count	8
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19800020810
Archival Resource Key	ark:/13960/t5t776w4r
Language	English
Publisher Date	1980-07-01
Access Restriction	Open
Subject Keyword	Aircraft Propulsion And Power Fuel Combustion Engine Design Hydrogen Aircraft Fuels Exhaust Gases Engine Tests Aircraft Engines Combustion Chambers Combustion Efficiency Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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