Accession Number:

ADA242193

Title:

Burn Rates of LGP 1846 Conditioned Ambient, Hot, and Cold

Descriptive Note:

Final rept. Jan-Oct 90,

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1991-10-01

Pagination or Media Count:

112.0

Abstract:

The liquid gun propellant LGP 1846, is being used by the U.S. Army in the development of a regenerative liquid propellant gun RLPG for use with the next generation artillery howitzer. Results of closed chamber experiments using LGP 1846 are presented. The matrix of firings includes variations in igniter pressure, propellant loading density, and temperature conditioning of the propellant, ranging from approximately -25 C to 60 C. Derived burning rate laws, in the form r bP to the nth power, result in exponents of approximately 2.0 for pressures in excess of 100 MPa. However, comparison of burn rates with strand burner data at corresponding pressures indicate good agreement. The measured burn rates, although much higher than previous experiments have indicated, do not significantly alter previous results and previously chosen empirical parameters in a lumped parameter, liquid propellant gun, interior ballistic model which has been extensively validated against gun data.

Subject Categories:

  • Ammunition and Explosives
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE