Accession Number:

AD0392967

Title:

RESEARCH ON OPERATIONAL SLURRY FUELS.

Descriptive Note:

Final rept. 3 Apr 67-3 Jun 68,

Corporate Author:

ATLANTIC RESEARCH CORP ALEXANDRIA VA

Personal Author(s):

Report Date:

1968-10-01

Pagination or Media Count:

125.0

Abstract:

Two boron slurries were developed under this program to meet the Air Force operational criteria for use in a low altitude, supersonic ramjet propulsion system. One of these slurries contains a solids boron loading of 73 per cent, and the other contains 76 per cent boron by weight. Both were compounded with 2,2,5-trimethylhexane TMH carrier, Arlacel-83 wetting agent, and the AlMB-2 experimental gellant of Shell Development Corporation. Viscosity determinations of these slurries at 70 F showed that the 73 per cent boron slurry TSAR-2.00 had a viscosity of 5 poise. The viscosity of the 76 per cent by weight boron slurry TSAR-1.75-76 at the same conditions were 10 poise. Viscosity values for these slurries at -65F were 175 poise 73 per cent boron slurry-TSAR-2.00 and 330 poise 76 per cent boron slurry-TSAR-1.75-76. Both of these slurries show excellent room temperature storage properties, no degradation of physical properties under thermal cycling conditions, no gas formation, and good dynamic stability. The combustion efficiencies of both of these slurries were between 65 and 70 per cent at Mach 2.5 sea level, cold day at a fuel-to-air ratio of 0.024 as determined on the ARC 3.5-inch Micro-Ramjet Engine. These efficiencies are very similar to those obtained on this engine for previous work-horse-type slurry formulations.

Subject Categories:

  • Fuels

Distribution Statement:

APPROVED FOR PUBLIC RELEASE