Effects of Degraded Agent and Munitions Anomalies on Chemical Stockpile Disposal Operations (2004) / Chapter Skim
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Appendix A: Autoignition and the M55 Rocket
Appendix A: Autoignition and the M55 Rocket
Pages 53-57
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In addition to the stabilizer depletion that takes place normally in propellant under storage conditions, concerns have also been raised about GB leakage 55 into propellant grains and the impact that such leakage has on propellant stability. Further, when leaking GB M55 rockets are overpacked, the ability to dissipate heat from the rocket to the surroundings is reduced.
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Thermal modeling included detailed heat transfer paths through the rocket and in the two types of overpack systems. Heat generation from internal chemical iNotes from conference Expert Elicitation on Autoignition of Agent-Contaminated M28 Rocket Propellant, Science Applications International Corporation, November 18-20, 1998.
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From page 57... ...
Where the analysis showed that the peak heat generation rates exceeded the rate of heat transfer out of the system, autoignition was assumed to occur. The analysis confirmed that the degradation process over time results in increasing NOX generation, which in turn further increases degradation as the NOX pressure increases.
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