EXPERIMENTAL AND STATISTICAL MODELS FOR OBTAINING A DATABASE ON DEVELOPMENT SPEEDS OF THE COMBUSTION PROCESS OF PYROTECHNIC MIXTURES BASED ON METAL FUELS, FLUOROPLASTS AND ORGANIC SUBSTANCE ADDITIVES

  • Viktoriia Kovbasa Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Protection of Ukraine
  • Oksana Kyrychenko Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Protection of Ukraine
  • Viacheslav Vashchenko Cherkasy State Technological University
  • Yevhenii Shkoliar Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Protection of Ukraine
  • Maryna Tomenko Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Protection of Ukraine
  • Serhii Kolinko Cherkasy State Technological University
  • Andrii Khyzhniak Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Protection of Ukraine
Keywords: fire safety, pyrotechnic mixtures, combustion processes, statistical modeling

Abstract

New regularities of the influence of the parameters of external thermal influences (elevated heating temperatures and external pressures) on the speed of development of the combustion process of pyrotechnic mixtures of metal fuel powders (magnesium, aluminum), oxidizers (fluoroplastics (F-3, F-4)) with additives of organic substances have been established (paraffin, stearin, naphthalene, anthracene) for the values of technological parameters used in pyrotechnic production. For the first time, experimental-statistical models were developed for predicting the influence of the specified parameters on the rate of development of the combustion process of mixtures for the formation of a database on the fire-hazardous properties of pyrotechnic products under conditions of external thermal influences.  

In practice, the obtained results can be used as a basis for a general database on the fire-hazardous properties of pyrotechnic products based on mixtures of metal fuel powders, fluoroplastics and organic additives, which can be used at the stage of manufacturing charges of mixtures quickly in dialogue mode and in real time on a PC, by regulating the ratio and nature of the components in the mixture, their work is less sensitive to possible external thermal influences during storage, transportation and application of products. 

New experimental and statistical models have been developed for the formation of a database of calculation data (relative error 4...7%) on the influence of the main controlled technological parameters ( α, ε, dм, dок, КУ ) on the speed of development of the combustion process of mixtures under conditions of external thermal influences (elevated temperatures heating), which allow at the stage of manufacturing pyrotechnic products by adjusting the technological parameters to suspend their fire safety in the conditions of storage, transportation and use.

Published
2024-01-22
Issue
Vol. 7 No. 2 (2023): Collection of Scientific Papers of Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Protection of Ukraine «Emergency Situations: Prevention and Liquidation»
Section
Статті