Determination of the Volume of Water for Suppressing the Thermal Decomposition of Forest Combustibles

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From the results of experimental studies of the processes of suppressing the thermal decomposition of the typical forest combustibles (birch leaves, fir needles, asp twigs, and a mixture of these three materials) by water aerosol, the minimum volumes of the fire-extinguishing liquid have been determined (by varying the volume of samples of the forest combustibles from 0.00002 m3 to 0.0003 m3 and the area of their open surface from 0.0001 m2 to 0.018 m2). The dependences of the minimum volume of water on the area of the open surface of the forest combustible have been established. Approximation expressions for these dependences have been obtained. Forecast has been made of the minimum volume of water for suppressing the process of thermal decomposition of forest combustibles in areas from 1 cm2 to 1 km2, as well as of the characteristic quenching times by varying the water concentration per unit time. It has been shown that the amount of water needed for effective suppression of the process of thermal decomposition of forest combustibles is several times less than is customarily assumed.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalJournal of Engineering Physics and Thermophysics
Issue number4
Publication statusAccepted/In press - 14 Aug 2017



  • forest combustible
  • minimum volume
  • quenching
  • thermal decomposition
  • water
  • water concentration

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)

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