International Scientific Journal


This article presents the main findings of the experimental research into the fire suppression by continuous spraying of water over the combustion zone and by pulsed liquid aerosol delivery according to two schemes. The test samples con-tained either birch leaves only or mixed of (leaves, twigs, and needles). We monitored the temperature in the fuel bed and used thermocouple readings to determine the conditions and characteristics of suppressing the combustion and thermal decomposition of the material. Using optical methods and high speed recording, we obtained the parameters of sprayed liquid-flow as well as the processes involved in the interaction between liquid aerosol and the decomposing forest fuel. The experimental study helped us establish how much time and quenching liquid is sufficient to suppress the forest fuel combustion. Furthermore, we determined the influence of the forest fuel volume on the conditions and characteristics of the processes under study. Finally, we identified the main physical principles of the thermal decomposition of forest fuel when using the proposed approaches to spraying water into the combustion zone. The research findings enable the optimization of aerial firefighting in terms of wildfire containment and suppression.
PAPER REVISED: 2018-12-11
PAPER ACCEPTED: 2018-12-21
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 5, PAGES [3263 - 3273]
  1. Huang, Y-L, et al., Comparison of combustion models in cleanroom fire, Journal of Mechanics, 24 (2008), pp. 267-275.
  2. Dimitrakopoulos, A, et al., Statistical analysis of the fire environment of large forest fires (>1000 ha) in Greece, Polish Journal of Environmental Studies, 20 (2011), pp. 327-332.
  3. US General Accounting Office, Wildland Fire Management: Lack of Clear Goals or a Strategy Hinders Federal Agencies' Efforts to Contain the Costs of Fighting Fires, (2007), GAO-07-655.
  4. Korobeinichev, O.P., et al., Fire suppression by aerosols of aqueous solutions of salts. Combustion, Explosion and Shock Waves, 46 (2010), pp. 16-20.
  5. Korobeinichev, O.P., et al., Fire suppression by low-volatile chemically active fire suppressants using aerosol technology, Fire Safety Journal, 51 (2012), pp. 102-109.
  6. Thompson, M.P., et al., Airtankers and wildfire management in the US Forest Service: examining data availability and exploring usage and cost trends, International Journal of Wildland Fire, 22 (2012), pp. 223-233.
  7. Calkin, D.E., et al., Large airtanker use and outcomes in suppressing wildland fires in the united states, International Journal of Wildland Fire, 23 (2014), pp. 259-271.
  8. Bahar, R., et al., Moisture sorption isotherms and thermodynamic properties of Oak wood (Quercus robur and Quercus canariensis): optimization of the processing parameters Heat and Mass Transfer, 53 (2017), pp. 1541-1552.
  9. Korobeinichev O.P., et al., Combustion chemistry and decomposition kinetics of forest fuels, Procedia Engineering, 62 (2013), pp. 182-193.
  10. Grishin, A.M., Mathematical modeling of forest fire and new methods of fighting them, Publishing House of Tomsk State University, Tomsk, 1997 (in Russia).
  11. Kuznetsov, G.V., et al., Integral characteristics of water droplet evaporation in higherature combustion products of typical flammable liquids using SP and IPI methods, International Journal of Thermal Sciences, 108 (2016), pp. 218-234.
  12. Volkov, R.S., et al., The influence of initial sizes and velocities of water droplets on transfer characteristics at high-temperature gas flow, International Journal of Heat and Mass Transfer, 79 (2014), pp. 838-845.
  13. Volkov, R.S., et al., Experimental investigation of mixtures and foreign inclusions in water droplets influence on integral characteristics of their evaporation during motion through high-temperature gas area, International Journal of Thermal Sciences, 88 (2015), pp. 193-200.
  14. Helsen, L.M.L., Van den Bulck, E.V.M., Study of a new macro-particle model for the low-temperature pyrolysis of dried wood chips, Heat and Mass Transfer, 38 (2001), pp. 165-181.
  15. Zhdanova, A.O., et al., Suppression of forest fuel thermolysis by water mist, International Journal of Heat Mass Transfer, 126 (2018), pp. 703-714.

© 2022 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence