Abstract
Presented are results of experimental studies of the heat transfer processes in suppression of thermal decomposition of typical forest fuels (FFs) (spruce needles, birch leaves, aspen twigs, or amixture thereof) due to the effect of aerosol water flow (drop radii: 0.01–0.12 mm; concentration: 3.8 · 10−5 m3 drop/m3 of gas). The experiments have been carried out with FF samples in the form of cylinders of a thickness of 40–100 mm and a diameter of 20–150 mm. The times required to stop the thermal decomposition of FF have been found, as well as amounts of water necessary to lower in a given time the temperature in a layer of material to the point of decomposition beginning. A dimensionless complex has been derived for prediction of water spraying parameters (amount and time of supply) that ensure sustainable termination of FF decomposition within a specified time interval.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
Calkin, D.E., Stonesifer, C.S., Thompson, M.P., and McHugh, C.W, Large Airtanker Use and Outcomes in Suppressing Wildland Fires in the United States, Int. J. Wildland Fire, 2014, vol. 23, pp. 259–271.
Korobeinichev, O.P., Shmakov, A.G., Shvartsberg, V.M., Chernov, A.A., Yakimov, S.A., Koutsenogii, K.P., and Makarov, V.I, Fire Suppression by Low-Volatile Chemically Active Fire Suppressants Using Aerosol Technology, Fire Safety J., 2012, vol. 51, pp. 102–109.
Vysokomornaya, O.V., Kuznetsov, G.V., and Strizhak, P.A, Experimental Investigation of Atomized Water Droplet Initial Parameters Influence on Evaporation Intensity in Flaming Combustion Zone, Fire Safety J., 2014, vol. 70, pp. 61–70.
Strizhak, P.A, Influence of Droplet Distribution in a “Water Slug” on the Temperature and Concentration of Combustion Products in Its Wake, J. Eng. Phys. Therm., 2013, vol. 86, no. 4, pp. 895–904.
Volkov, R.S., Kuznetsov, G.V., and Strizhak, P.A, The Influence of Initial Sizes and Velocities of Water Droplets on Transfer Characteristics at High-Temperature Gas Flow, Int. J. Heat Mass Transfer, 2014, vol. 79, pp. 838–845.
Volkov, R.S., Kuznetsov, G.V., Kuibin, P.A., and Strizhak, P.A, Weber Numbers at Various Stages of Water Projectile Transformation during Free Fall in Air, Tech. Phys. Lett., 2015, vol. 41, no. 10, pp. 1019–1022.
Sedov, L.I., Metody podobiya i razmernosti v mekhanike (Similarity and Dimensional Methods in Mechanics), Moscow: Fizmatlit, 1987.
Grishin, A.M., Matematicheskoe modelirovanie leshykh pozharov i novye sposoby bor’by s nimi (MathematicalModeling of Forest Fires and NewWays of Extinguishing of Them), Novosibirsk: Nauka, 1992.
Zhdanova, A.O., Kuznetsov, G.V., and Strizhak, P.A, Numerical Investigation of Physicochemical Processes Occurring during Water Evaporation in the Surface Layer Pores of a Forest Combustible Material, J. Eng. Phys. Therm., 2014, vol. 87, no. 4, pp. 773–781.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Nakoryakov, V.E., Kuznetsov, G.V. & Strizhak, P.A. Prediction of minimum water amount to stop thermal decomposition of forest fuel. J. Engin. Thermophys. 26, 139–145 (2017). https://doi.org/10.1134/S1810232817020011
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1810232817020011