METHOD OF DETERMINING DISTRIBUTION OF PARTICLE MASS OF EXTINGUISHING AGENT IN UNSTEADY GAS FLOW

摘要

FIELD: fire safety.;SUBSTANCE: method of determining the distribution of the particle mass of the extinguishing agent contained in an unsteady gas flow, with their precipitation on the substrate and measuring the time of precipitation of particles. At that the distribution of the particle mass of the extinguishing agent are on the boundary lines of the precipitated particles of powder fractions and the aggregate composition of the powder, as well as in the points of location of the substrates on the projected fire area.;EFFECT: ensuring the possibility of obtaining information about the distribution of the particle mass of powder on the extinguishing area at the unsteady efflux characteristic of fire extinguishers, due to implementation of unsteady flow of extinguishing agent by the test fire extinguisher or its model, and eliminates the need to make calculations that characterise the distribution of the number and size of particles in suspension state.;10 dwg