EVALUATION OF AMMONIUM NITRATE PROPELLANT EMISSIONS

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Authors
  1. Stowe, R.A.
  2. Lessard, P.
  3. Roy, G.
  4. Richer, G.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
Defence Research Establishment Valcartier has recently completed the exploratory development of a solid rocket propellant based on an ammonium nitrate (AN) oxidizer and a glycidyl azide polymer (GAP). Apart from developing a propellant with good energetic performance, improved safety and low observables, the goal was to obtain a propellant having an exhaust with few harmful emissions. This propellant has now been extensively tested, including the firings of several 70 mm diameter motors, four 200 mm diameter motors, small ballistic test motors inside a closed smoke chamber, and closed bomb tests. Estimates of the exhaust gas composition have been done suing a thermochemical equilibrium computer code, and are supported by motor performance data and infrared emission spectra. The smoke chamber firings include mass extinction coefficient measurements of the exhaust smoke, derived from transmissometer data at the visible and 2-14 mu m wavelengths. The closed bomb tests provided gas samples for Fourier transform infrared (FTIR) spectrometry and gas chromatography analysis of post-combustion exhaust products. Overall, the results indicated that the combustion of GAP/AN propellants produce exhaust emissions that are less harmful to the environment than those produced by ammonium perchlorate-based propellants. TRUNCATED
Keywords
GAP (glycidyl azide polymer) propellants
Report Number
AGARD-CP-559-PAP-16 — CONTAINED IN 95-02639
Date of publication
01 Feb 1995
Number of Pages
12
DSTKIM No
95-02616
CANDIS No
151532
Format(s):
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