Accession Number:

ADA025974

Title:

Solid Propellants for Hydrogen Gas Generators,

Descriptive Note:

Corporate Author:

ARMY MISSILE COMMAND REDSTONE ARSENAL ALA

Report Date:

1976-01-01

Pagination or Media Count:

12.0

Abstract:

Solid propellants have been developed and evaluated in a hydrogen gas generator as potential sources of hydrogen for the HFDF chemical laser. Formulations based on the reaction of NaBH4 with Fe2O3 to produce high purity hydrogen and the reaction of NaBH4 with NH42SO4 to produce a mixture of hydrogen and nitrogen have been investigated. When deuterated compounds are used in place of the hydrogen-containing compounds, deuterium D2 is generated in place of hydrogen H2. Propellant grains of NaBH4Fe2O3 weighing approximately 0.08 kg have been prepared and used to generate high purity hydrogen gas for use as a laser cavity fuel and precombustor fuel in a small HFDF chemical laser device. The propellant formulations that contain NaBH4 are very stable to moisture, exhibit no sensitivity to impact or friction, and have autoignition temperatures above 773 K. These propellants or similar type solid propellants are potential storage H2D2 gas sources that combine instant readiness with excellent handling characteristics and compact storage. The volumetric efficiency of these solid propellants is equivalent to or greater than that of liquid hydrogen as a source of gaseous hydrogen. Experimental data from the HFDF chemical laser tests confirm that hydrogen produced from a solid propellant grain is equivalent to commercial hydrogen for use as a cavity or precombustor fuel in the HFDF chemical laser. Author

Subject Categories:

  • Lasers and Masers
  • Hydraulic and Pneumatic Equipment
  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE