Fire extinguishing in with polydisperse foam of high multiplicity

Artem Melnikov,Nikolay Vlasov,O Kalinina

doi:10.1051/e3sconf/201911001063

Artem Melnikov, Nikolay Vlasov + Show 1 more

Open Access

https://doi.org/10.1051/e3sconf/201911001063

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Abstract

Risk of fire and smoke dangers are greater in high-rise rather than low-rise buildings. Use of high expansion foam delivered through elevator shafts can prevent or reduce smoke and fire damage and injury in high-rise buildings. Injection of foam with high multiplicity due to structural rigidity can accumulate between floors of buildings to prevent the spread of flame and smoke. Reaching an area of high-intensity flame, this foam is destroyed, resulting in the absorption of energy from the upward flow of products of combustion.

Highlights

1.1 A high-Risk and danger of fire and smoke in high-rise buildingsHigh-rise buildings are exposed to many dangers, but one of the highest dangers possible is fire
Given that the height of the foam column can reach several meters, it is necessary to select foaming agents that are able to form a foam with a high capillary pressure limit
An increase in the height of the foam layer leads to a synchronous increase in hydrostatic and capillary pressure in the foam channels and the rupture of foam films

Summary

Introduction

1.1 A high-Risk and danger of fire and smoke in high-rise buildings. High-rise buildings are exposed to many dangers, but one of the highest dangers possible is fire. Existing statistics about fire emergencies in high-rise buildings confirm this level and kind of danger [1,2,3,4,5]. Fires in high-rise buildings feature rapid vertical development and require elaborate evacuation and rescue schemes. Tragic consequences can result from fires in high-rise buildings when fire and the products of combustion block human escape routes. Extinguishing fires in high-rise buildings by traditional methods requires use of highpressure water, often transported and delivered over distances. High water consumption during fire extinguishing on the upper floors of high-rise buildings leads to flooding of the premises located below

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