APPLICATION OF THERMODYNAMIC ANALYSIS METHODS IN DETERMINING THE TEMPERATURE OF COMBUSTION PRODUCTS IN THE COMBUSTION PROCESS OF PYROTECHNIC MIXTURES WITH ADDITIVES OF ORGANIC SUBSTANCES

Oleksandr Tyshenko; Oksana Kyrychenko; Oleg Myroshnyk; Oleksandr Diadiushenko; Valentyn Melnyk; Kostiantyn Myhalenko; Serhii Honchar

Oleksandr Tyshenko 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
Oleg Myroshnyk Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Protection of Ukraine
Oleksandr Diadiushenko Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Protection of Ukraine
Valentyn Melnyk Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Protection of Ukraine
Kostiantyn Myhalenko Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Protection of Ukraine
Serhii Honchar Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Protection of Ukraine

Keywords: pyrotechnic mixture, fire safety, thermodynamic analysis, pyrotechnic products, combustion processes, temperature of combustion products

Abstract

Pyrotechnic products of general industrial purpose (lighting products, pyrotechnic infrared emitters, etc.) are widely used for spectacular events, light and noise effects for cinema and television.

To increase the ignition efficiency and the stable development of the combustion of the main charges of multi-component pyrotechnic mixtures, which give special effects (light, color-flame, thermal, etc.), which are equipped with many general industrial pyrotechnic products, as well as some pyrotechnic products for special purposes (elements of rocket and space techniques, means of targeting and monitoring ground and air targets, etc.) are widely used, as well as for some explosive ammunition [2 - 5], instead of traditional sources of ignition (electric detonator, fire-conducting rope, electric igniter, fuse-match, etc.) nitrate-metal, the basis of which are compacted mixtures of metal powders, nitrate-containing oxidizers and technological additives of organic substances.

Therefore, the purpose of this work is to determine the temperature of combustion products and the content of high-temperature condensate in them for mixtures of metal fuel powders (aluminum, magnesium, zirconium), nitrate-containing oxidizer (sodium nitrate) and organic substance additives (paraffin, stearin, naphthalene, anthracene) using known methods of thermodynamic analysis

As a result of studies of the temperature and composition of combustion products of multicomponent pyrotechnic mixtures made from components of nitrate-metal ignition sources, the following regularities were established the qualitative and quantitative composition of the products of combustion of mixtures depends most significantly on and Р, while the characteristic ranges of their changes correspond to a certain composition of the products of combustion of mixtures, while the amount of organic additives most strongly affects the content of high-temperature condensate in the products of combustion of mixtures.