NDLI: Photographic combustion characterization of lox/hydrocarbon type propellants (Document No: 19800002136)

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Photographic combustion characterization of lox/hydrocarbon type propellants (Document No: 19800002136)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Judd, D. C.
Copyright Year	1979
Description	Single element injectors and two fuels were tested with the aim of photographically characterizing observed combustion phenomena. The three injectors tested were the O-F-O triplet, the transverse like on like (TLOL), and the rectangular unlike doublet (RUD). The fuels tested were RP-1 and propane. The hot firings were conducted in a specifically constructed chamber fitted with quartz windows for photographically viewing the impingement spray field. All LOX/HC testing demonstrated coking with the RP-1 fuel leaving far more soot than the propane fuel. No fuel freezing or popping was experienced under the test conditions evaluated. Carbon particle emission and combustion light brilliance increased with Pc for both fuels although RP-1 was far more energetic in this respect. The RSS phenomena appear to be present in the high Pc tests as evidenced by striations in the spray pattern and by separate fuel rich and oxidizer rich areas. The RUD element was also tested as a fuel rich gas generator element by switching the propellant circuits. Excessive sooting occurred at this low mixture ratio (0.55), precluding photographic data.
File Size	13672744
Page Count	85
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19800002136
Archival Resource Key	ark:/13960/t6tx84k5x
Language	English
Publisher Date	1979-07-27
Access Restriction	Open
Subject Keyword	Propellants And Fuels Propellant Tests Injectors Liquid Oxygen Liquid Rocket Propellants Photographic Measurement Oxygen-hydrocarbon Rocket Engines Fuel Injection Exhaust Emission Carbon Propellant Combustion Propane Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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