Étude de la décomposition thermique d'un carburant solide à base d'un polymère énergétique


  1. Ringuette, S.
Corporate Authors
Defence R&D Canada - Valcartier, Valcartier QUE (CAN)
Ramjet propulsion is achieved by the mixing and reaction of fuel and high-speed compressed air in the combustion chamber. The total efficiency of a ramjet depends heavily on the nature of the involved reactants, their residence time in the combustion chamber, and how well they are mixed. A special type of ramjet, called a ducted rocket, uses the exhaust products from a fuel-rich solid propellant gas generator as the fuel. Since the propellant is fuel-rich, the kinetics of are particularly complex. This propellant is made of complex polymers. To ensure thorough efficient mixing and combustion in the reactor, the fuel must initially be transformed into mainly gases, by auto-pyrolysis, before being injected into the combustion chamber. The main objective of the project was therefore to improve the understanding of the chemical reactions leading to the production of gaseous effluent from the thermal self-decomposition of the fuel-rich solid propellant. The early stages of the decomposition reactions were studied so as to identity the factors determining its initiation. The first part of this project consisted in developing a sampling procedure to make it possible to collect the products of decomposition of the gas generator in quasi-real-time. Two combustion methods were used, one for the burning tests in pressurized bombs, and the other the static firings of small gas generators. The first configuration was used to establish chemical composition of the gaseous and condensed phas
Report Number
DRDC-VALCARTIER-SL-2009-425 — Scientific Literature
Date of publication
01 Dec 2009
Number of Pages
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