PULSE PULVERIZATION OF THIN-DISPERSED EXTINGUISHING POWDER AND WATER BY SHOOT OR VOLLEY OUT OF MULTI-BARRELS MODULES
Journal: Pozharovzryvobezopastnost/Fire and Explosion Safety (Vol.24, No. 7)Publication Date: 2015-07-25
Authors : ZAKHMATOV V. D. Doctor of Technical Sciences of Extreme Processes in Materials; Explosion Safety Department Institute of Military Engineering; Safety Research of Peter the Great Saint Petersburg Polytechnic University;
Page : 61-70
Keywords : experimental modeling; natural whirlwinds; sand storms; extinguishing powder; water squall; pulse-shoot pulverization; volley pulverization; barrel system; multi-barrels module; dynamics of the multiphase reacting environments; shock wave; combustion.;
Abstract
There are investigated the dates of zero speed, maximal range and area of extinguishing influence of the fronts of gas-powder whirly and gas-water squall, created with jet's configuration pulse pulverize and spray out of barrels by shoot and volley. There are proposed the mechanisms of flight and air-destroy of gas-dispersive fronts of whirly and squall. There are showed optimal diapason of maximal values of range and area of: uniform and fragmentary powder's pulverization or water's spray and extinguishing for definitude calibers and long of barrels. There are showed most perspective way of increase range and area of uniform extinguishing—volley spray. It regime showed optimal diapason of maximal values of range and area despite of amount of barrels in the volley. There are proposed same way of improvement traditional fire-hoses by creation and experimental investigation of new unit, made of two and over hoses, closely and parallel mounted, for joint intermediation of neighbored jets.
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