Accession Number:

ADA231128

Title:

Kinetics of Propellant Combustion and Muzzle Flash Reactions

Descriptive Note:

Final rept. 15 Jan 1987-30 Sep 1990,

Corporate Author:

RENSSELAER POLYTECHNIC INST TROY NY DEPT OF CHEMICAL ENGINEERING

Personal Author(s):

Report Date:

1990-11-28

Pagination or Media Count:

7.0

Abstract:

Kinetic measurements are reported for elementary reactions important to the understanding and modeling of gun propellant combustion. The high- temperature photochemistry HTP technique, which allows measurements in the 300 to 1800 K range on isolated elementary reactions, is principally used to generate this information. The following are the recommended rate coefficients, in ccmoleculesec, H NH3 yields NH2 H2, k490-1780K 9.0x10-19T K2.40exp-4991 KT, D ND3 yields ND2 D2, k590-1220K 3.2x10- 10exp-8810 KT, H N2O yields N2 OH, k410-1230K 4.2x10-14exp- 2290 KT3.7x10-10exp-6920 KT, D N2O yields N2 OD k450-1210K 3.5x10-13exp-3600 KT 5.3x10-10exp-9170 KT, H NO2 yields OH NO k296-760K 2.2x10-10exp-182 KT, and H CH3NO2 k360-570K 1. 0x10-11exp-1981 KT. The reactions are discussed in terms of transition state theory, with tunneling where appropriate. Potential alternate reaction mechanisms and the combustion conditions under which they could occur are considered.

Subject Categories:

  • Physical Chemistry
  • Ammunition and Explosives
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE