Estimation of Propellant Storage Life Based on the Equivalent Transformation Rate Principle
Received:July 08, 2013  Revised:August 15, 2013
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DOI:10.7643/issn.1672-9242.2013.06.008
KeyWord:solid propellant  equivalent transformation rate  storage life  life estimation
              
AuthorInstitution
WEI Xiao-qin Southwest Technology and Engineering Research Institute,Chongqing,China
LIU Wei Southwest Technology and Engineering Research Institute,Chongqing,China
LIU Jun Southwest Technology and Engineering Research Institute,Chongqing,China
ZHAO Fang-chao Southwest Technology and Engineering Research Institute,Chongqing,China
LI Hong-ying Southwest Technology and Engineering Research Institute,Chongqing,China
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Abstract:
      Objective To evaluate thestorage life of solid propellant quickly and accurately.Methods Heat flow signals of propellant were attained at four different heating rates. Thermal reaction kinetic parameters and model for propellant were obtained using the AKTS heat reaction kinetics software, which was based on the equivalent transformation rate principle. A heat aging test was also carried out at 60℃. And then the storage life of solid propellant was evaluated using appropriate mathematic model.ResultsThe storage life of solid propellant was16years at25℃. Conclusion The reaction rate constant could be obtained accurately using the equivalent transformation rate principle. The storage life of solid propellant was concluded quickly through a single temperature heat aging test.
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