COMPARISON OF FIRE EXTINGUISHING SUBSTANCES FOR EXTINGUISHING FIRES OF FLAMMABLE LIQUIDS

Abstract

Problem statement: еffective and rapid extinguishing of flammable liquids is one of the biggest, unsolved problems in firefighting. Fires that occur in tank parks with the presence of a large number of large-volume tanks filled with gasoline, crude oil, fuel oil, alcohol, etc., are very difficult and dangerous. Extinguishing such fires is accompanied by an increased risk for personnel and the difficulty of managing forces and means. The imperfection of methods of
extinguishing these fires requires their improvement and the creation of new, more effective methods.  Purpose: analysis and comparison of fire extinguishing agents for extinguishing fires of flammable and combustible liquids and determination of the most optimal and inexpensive fire extinguishing agent based on fire extinguishing efficiency and operational characteristics.
Methods: the work uses the method of analysis, comparison and generalisation of scientific and technical achievements on the use of various fire-extinguishing substances and methods of extinguishing fires involving flammable and combustible liquids. Research results: Based on the analysis of fire-extinguishing substances, it was determined that fire-extinguishing aerosols are universal in their application and have high fire-extinguishing efficiency indicators for extinguishing class "B" fires, and in some parameters have significant advantages over other fire-extinguishing substances.
Conclusions: Taking into account the ever-increasing demands of consumers for fire extinguishing agents, namely the combination of one fire extinguishing substance, high fire extinguishing efficiency and operational advantages, - ease of delivery to the centre of the fire, long protection time, the possibility of phlegmatization of the combustible system at low concentrations, a long storage period, etc., it can be concluded that the fire-extinguishing aerosol meets the specified criteria of an optimal and inexpensive fire-extinguishing substance, which is confirmed by the largest number of conditional points obtained for the specified criteria.