Accession Number : AD0746063

Title :   High Speed Ignition and Combustion Characteristics of Storable Fuels Using a Hot Gas Pilot Igniter,

Corporate Author : GENERAL APPLIED SCIENCE LABS INC WESTBURY N Y

Personal Author(s) : Schmotolocha,Stephen N. ; Edelman,Raymond B.

Report Date : APR 1972

Pagination or Media Count : 70

Abstract : The report presents the results of a study on the ignition and combustion characteristics of high density storable fuels injected into supersonic and subsonic air streams. The fuels include liquid n-hexane, Shelldyne-H, and magnesium/hexane slurry and a boron/magnesium/hexane slurry. The subsonic and supersonic tests were performed in the same constant area combustor using a pebble bed heater and a vitiated heater, respectively. Autoignition and hot gas piloting were studied over a range of airstream total temperatures from ambient (300K) to 1950K. The results include definition of ignition and stable flame limits and pilot effectiveness parameters. Further evidence of staged ignition and combustion of the metallized slurries was obtained. In addition, a comparison between existing subsonic premixed combustion data and the present diffusion flame results is presented. (Author)

Descriptors :   (*SUPERSONIC COMBUSTION, *JET ENGINE FUELS), IGNITION, HYDROCARBONS, BORON, SLURRY FUELS, FLAMES, MAGNESIUM, SUBSONIC FLOW

Subject Categories : Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE