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Journal of Thermal Analysis and Calorimetry

, Volume 110, Issue 3, pp 1029–1036 | Cite as

Thermal explosion model and calculation of sphere fireworks and crackers

  • Haiying Liu
  • Xinming Qian
  • Zhiming Du
  • Ping Huang
  • Zhenyi Liu
Article

Abstract

In order to analyze thermal safety of fireworks and crackers, thermal explosion models of three kinds of sphere fireworks and crackers with different structures are achieved on the basis of thermal explosion theory, and thermal resistance of shell and effective Biot number are deduced as for boundary conditions. Two models are calculated with target-shooting method in Matlab program, and the rationality is proved through comparison of numerical solution and classical solution. Meanwhile, calculation steps are shown about a type of firework. The study has a great significance to thermal safety analysis of fireworks and crackers.

Keywords

Fireworks and crackers Thermal explosion model Sphere Target-shooting method 

Notes

Acknowledgements

We would like to express our gratitude to Guangwei Zhou for his enthusiastic help in this study.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2011

Authors and Affiliations

  • Haiying Liu
    • 1
  • Xinming Qian
    • 1
  • Zhiming Du
    • 1
  • Ping Huang
    • 1
  • Zhenyi Liu
    • 1
  1. 1.State Key Laboratory of Explosion Science and TechnologyBeijing Institute of TechnologyBeijingChina

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