Accession Number:

AD0731840

Title:

A Study of the Effects of Electric Fields on Solid Propellant Burning Rates

Descriptive Note:

Technical rept. Oct 1968-Jun 1970

Corporate Author:

AIR FORCE ROCKET PROPULSION LAB EDWARDS AFB CA

Personal Author(s):

Report Date:

1971-07-01

Pagination or Media Count:

176.0

Abstract:

An experimental study, guided by theoretical considerations, was made on the effects of electric fields on burning rate of two metallized composite propellants. Mechanisms causing observed burning rate changes were sought. Experimental data include flame elctron number densities, electrical conductivities, electric field strengths, electric currents, combustion efficiencies, exhaust emissions spectra and continuous measurement of burning rates. Results show that burning rate increases are due to current heating of the nonburning propellant and that burning rate decreases involve flame electrons, causing inhibited combustion under proper voltage conditions. Non- collective reactional interference was inferred for this latter case.

Subject Categories:

  • Combustion and Ignition
  • Solid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE