Determination of the Minimal Amount of Water for Effective Suppression of the Thermal Decomposition of Forest Combustible Materials

Alena Až Zhdanova, Galina S. Nyashina, Maria M. Osmolovskaya

Research output: Contribution to journalConference article

Abstract

Forest fires are big problem for whole the world community. The development of new effective methods is needed to increase the efficiency of the firefighting. We have investigated experimentally the suppression of thermal decomposition of different typical forest combustibles using water aerosol. Droplet sizes were 0.02-0.2mm; the concentration -3.8·10-5 m3 of water/m3, the flow rate -0.00035 l/s, flow velocity -2 m/s. Registration of the aerosol propagation and interaction with combustibles was done by high-speed video camera using Shadow Photography and Particle Tracking Velocimetry methods. The effective water volumes for fire suppression were determined together with corresponding suppression times. The obtained results could be used for improvement of the fire-fighting technologies.

Original languageEnglish
Article number01134
JournalMATEC Web of Conferences
Volume72
DOIs
Publication statusPublished - 9 Aug 2016
EventHeat and Mass Transfer in the System of Thermal Modes of Energy - Technical and Technological Equipment, HMTTSC 2016 - Tomsk, Russian Federation
Duration: 19 Apr 201621 Apr 2016

Fingerprint

Fires
Pyrolysis
Aerosols
Water
High speed cameras
Photography
Video cameras
Flow velocity
Velocity measurement
Flow rate

ASJC Scopus subject areas

  • Chemistry(all)
  • Engineering(all)
  • Materials Science(all)

Cite this

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abstract = "Forest fires are big problem for whole the world community. The development of new effective methods is needed to increase the efficiency of the firefighting. We have investigated experimentally the suppression of thermal decomposition of different typical forest combustibles using water aerosol. Droplet sizes were 0.02-0.2mm; the concentration -3.8·10-5 m3 of water/m3, the flow rate -0.00035 l/s, flow velocity -2 m/s. Registration of the aerosol propagation and interaction with combustibles was done by high-speed video camera using Shadow Photography and Particle Tracking Velocimetry methods. The effective water volumes for fire suppression were determined together with corresponding suppression times. The obtained results could be used for improvement of the fire-fighting technologies.",
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