NDLI: Aviation fuel property effects on altitude relight

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Aviation fuel property effects on altitude relight

Content Provider	NASA Technical Reports Server (NTRS)
Author	Venkataramani, K.
Copyright Year	1987
Description	The major objective of this experimental program was to investigate the effects of fuel property variation on altitude relight characteristics. Four fuels with widely varying volatility properties (JP-4, Jet A, a blend of Jet A and 2040 Solvent, and Diesel 2) were tested in a five-swirl-cup-sector combustor at inlet temperatures and flows representative of windmilling conditions of turbofan engines. The effects of fuel physical properties on atomization were eliminated by using four sets of pressure-atomizing nozzles designed to give the same spray Sauter mean diameter (50 + or - 10 micron) for each fuel at the same design fuel flow. A second series of tests was run with a set of air-blast nozzles. With comparable atomization levels, fuel volatility assumes only a secondary role for first-swirl-cup lightoff and complete blowout. Full propagation first-cup blowout were independent of fuel volatility and depended only on the combustor operating conditions.
File Size	16508515
Page Count	67
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19870015145
Archival Resource Key	ark:/13960/t9770cj8f
Language	English
Publisher Date	1987-05-01
Access Restriction	Open
Subject Keyword	Propellants And Fuels Fuel Combustion Nozzle Geometry Aircraft Fuels Volatility Fluid Flow Ignition Turbofan Engines Air Start Chemical Properties Atomizing Altitude 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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