Determination of the mass flow rate of compression foam when it is delivered through fire hoses

Purpose. This article presents the methodology and results of a field experiment to determine the mass flow rate when applying compression foam through fire hoses. As part of an experimental study, a functional dependence of the mass consumption of compression foam on the proportional ratio of its components during transportation through fire hoses was established. Empirical data have been obtained characterizing the mass flow rate depending on the varying foam multiplicity. Methods. As part of the scientific research, an empirical experimental method was applied. During the processing of experimental data, a statistical analysis method was used to identify patterns and dependences of the mass flow rate of compression foam when delivered through fire hoses. Findings. Field tests made it possible to obtain experimental dependences of mass flow on the operating modes of the foam generating unit when applying compression foam through fire hoses. Research application field. The results of the study open up prospects for further mathematical modeling. These data will serve as the basis for creating models that make it possible to predict and evaluate the cooling process of compression foam when it is supplied through pump-hose systems at low ambient temperatures. Conclusions. Experimental studies conducted to determine the mass consumption of compression foam lead to the conclusion that further work is needed to study the parameters of the foam-air mixture in order to effectively use it in extinguishing fires, including at low temperatures.