• English
  • Deutsch
  • Log In
    Password Login
    or
  • Research Outputs
  • Projects
  • Researchers
  • Institutes
  • Statistics
Repository logo
Fraunhofer-Gesellschaft
  1. Home
  2. Fraunhofer-Gesellschaft
  3. Konferenzschrift
  4. Hot-Spot-Modelling to Simulate the Influence of Particle Properties on Ignition of Solid Propellants
 
  • Details
  • Full
Options
June 2022
Conference Paper
Titel

Hot-Spot-Modelling to Simulate the Influence of Particle Properties on Ignition of Solid Propellants

Abstract
Pyrotechnic ignition of solid propellants is a highly transitional process. Modelling such a process is challenging because the heat transport during the ignition occurs not only by heat conduction and convection but also by radiation and by particles. The jet of an ignitor usually consists of gas and some condensed material (particles, drops) impinging the propellant surface. Here, a few aspects of the influence of the impinging particles on the ignition of solid propellants are simulated and discussed. A large number of parameters influences the ignition of a solid propellant by particles. Beneath the material properties of the propellant, size, number, size distribution, distribution in space, temperature and energy content of the particles are some of the particle properties that have to be considered. A 3D-model is presented that uses hot spots in a reactive homogeneous material to simulate single particles impinging the propellant. As a simplification, heat feedback from the flame is not considered. Calculations result in temperature distributions, which allow the determination of ignition delay time, reaction progress and ignition energy.
Author(s)
Kelzenberg, Stefan orcid-logo
Fraunhofer-Institut für Chemische Technologie ICT
Weiser, Volker
Fraunhofer-Institut für Chemische Technologie ICT
Knapp, Sebastian
Fraunhofer-Institut für Chemische Technologie ICT
Hauptwerk
Energetic Materials - Exploring and Understanding
Konferenz
Fraunhofer Institute for Chemical Technology (ICT International Annual Conference) 2022
Thumbnail Image
Language
English
google-scholar
Fraunhofer-Institut für Chemische Technologie ICT
  • Cookie settings
  • Imprint
  • Privacy policy
  • Api
  • Send Feedback
© 2022