Convective Heating of Energetic Materials.
Abstract
The pyrolysis and ignition dynamics of propellants and their components have been explored using convective heating at a flow rate of about 1 m/s at atmospheric pressure. Two major techniques were used for the dynamics studies. The first was a video camera and recorder which were used to record flame luminescence. Also used to study ignition dynamics was a high-speed shadow photography system which characterized regions of heat release following immersion of single propellant grains in the hot flow. A key observation was an unusual two-stage flame observed with NOSOL 363; no previous report has shown similar behavior with this propellant. Gas released during pyrolysis was analyzed using grab samples and infrared absorption spectroscopy. Key observations with HMX were (a) the increase in relative amount of NO2 with respect to other species with increasing temperature, and (b) the probable detection of substantial amounts of formic acid. This latter has not previously been observed in HMX pyrolysis studies.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1985
- Accession Number
- ADA163919
Entities
People
- Mark A. Dewilde
- Richard A. Beyer
Organizations
- Ballistic Research Laboratory