Features of propagation of droplets of water and special water-based compositions in a sample of forest fuel material

Dmitrii V. Antonov, Alena O. Zhdanova, Nikita E. Shlegel, Ivan S. Voytkov, Konstantin Yu Osipov, Genii V. Kuznetsov, Roman S. Volkov

Research output: Contribution to journalArticlepeer-review

Abstract

The article presents the results of experimental studies of water droplets propagation through the sample of typical forest fuel materials: needles, leaves, and their mixture. Different conditions are considered: without any additional energy supply, with heating, in the course of intensive thermal decomposition and flaming combustion. Three methods of registration are applied: thermocouple measurements, control of the weight of the sample as a whole and of its individual layers, and high-speed video recording. Water-based compositions with special additives (bentonite, bischofite, and foaming agents) typical for forest fire extinguishing systems are used. The experiments are carried out using aerosol and single water drops, as well as a small group of the latter. It is shown that the mechanisms, conditions and characteristics of droplet propagation through the layers of needles, leaves and their mixtures differ significantly. The scientific novelty of the work is the determining of the values of all the key characteristics of these processes in the conditions of intensive pyrolysis of the material, as well as through its inert layers.

Original languageEnglish
Pages (from-to)3339-3350
Number of pages12
JournalThermal Science
Volume23
DOIs
Publication statusPublished - 2019

Keywords

  • Forest fuel material
  • Liquid distribution in forest fuel material
  • Liquid propagation
  • Localization
  • Protective water line
  • Pyrolysis
  • Water retention in deep layers

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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