Reducing the intensity of thermal radiation at the sublayer extinguishing of alcohols by ecologically acceptable aerosols

Authors

DOI:

https://doi.org/10.15587/1729-4061.2021.225216

Keywords:

fire-extinguishing aerosol, ethyl alcohol, ethanol, n-butanol, alcohol, isobutanol, sublayer fire extinguishing

Abstract

This paper has theoretically substantiated and experimentally established the intensity of thermal radiation at burning and sublayer extinguishing of alcohols with environmentally acceptable aerosols.

An installation has been improved that determines the effectiveness of sublayer extinguishing with fire-extinguishing aerosols; a procedure that has been devised for determining the intensity of thermal radiation implies equipping it with an additional heat flow meter HFM–01 at a distance of 30 and 60 mm.

The task to establish the intensity of thermal radiation when burning alcohols and its impact on the process of sublayer extinguishing of alcohols with aerosols has been solved. The dependence of sublayer extinguishing efficiency on thermal radiation implies that the fire extinguishing aerosol completely shields the surface of the combustible liquid against its action.

The result of this study has established that the intensity of thermal radiation at a distance of 60 and 30 mm from the surface of an alcohol flame with an area of 234 cm2 ranges from 0.8 to 4.7 kW/m2; the intensity of burning and, accordingly, radiation, maximizes on seconds 30‒40 of burning.

It has been found that the intensity of thermal radiation for ethanol decreases with the addition of an aerosol with an intensity of up to 0.2 g/s, and decreases even more at the intensity of supply from 1.2 g/s. With a further increase in the intensity of aerosol supply, the radiation intensity begins to decrease, probably due to a decrease in the rate of combustion. In this case, the flame first decreases in size up to 2 times, and then, after 2‒3 seconds, it goes out. The use of fire-extinguishing aerosol for the sublayer extinguishing of alcohols ensures the effect of several factors that synergize and reduce the intensity of evaporation, burning, and, accordingly, thermal radiation

Author Biographies

Volodymyr Balanyuk, Lviv State University of Life Safety

Doctor of Technical Sciences, Associate Professor

Department of Environmental Safety

Anton Kravchenko, State Emergency Service of Ukraine in the Lviv Region

Leading Inspector

Oleksandr Harasymyuk, Lviv State University of Life Safety

PhD

Department of Environmental Safety

References

  1. Masshtabna pozhezha. U Zbarazhi zahorilasia spyrtova baza. Available at: https://tv4.te.ua/masshtabna-pozhezha-u-zbarazhi-zahorilasya-spyrtova-baza/
  2. Tanker truck burns in Baltimore. Available at: https://www.pressreader.com/usa/baltimore-sun/20070514/281496451851985
  3. Hamins, A., Klassen, M., Gore, J., Kashiwagi, T. (1991). Estimate of flame radiance via a single location measurement in liquid pool fires. Combustion and Flame, 86 (3), 223–228. doi: https://doi.org/10.1016/0010-2180(91)90102-h
  4. Zhi, H., Bao, Y., Wang, L., Mi, Y. (2019). Extinguishing performance of alcohol-resistant firefighting foams on polar flammable liquid fires. Journal of Fire Sciences, 38 (1), 53–74. doi: https://doi.org/10.1177/0734904119893732
  5. Kireev, A., Tregubov, D., Savchenko, A., Vasilchenko, A. (2019). Experimental study of the effect of the thickness of a layer of granulated foam glass on the burning of alcohols. Problemy pozharnoy bezopasnosti, 46, 71–79. Available at: https://nuczu.edu.ua/images/topmenu/science/zbirky-naukovykh-prats-ppb/ppb46/Kireev.pdf
  6. Balanyuk, V., Kozyar, N., Garasyumyk, O. (2016). Study of fire–extinguishing efficiency of environmentally friendly binary aerosol-nitrogen mixtures. Eastern-European Journal of Enterprise Technologies, 3 (10 (81)), 4–12. doi: https://doi.org/10.15587/1729-4061.2016.72399
  7. Balanyuk, V., Kovalishin, V., Kozyar, N. (2017). Effect of ecologically safe gas-aerosol mixtures on the velocity of explosive combustion of n-heptane. Eastern-European Journal of Enterprise Technologies, 4 (10 (88)), 12–19. doi: https://doi.org/10.15587/1729-4061.2017.108427
  8. Balanyuk, V. (2015). The effectiveness of open space fire extinguishing with flammable liquid fighting aerosols. Eastern-European Journal of Enterprise Technologies, 5 (10 (77)), 4–11. doi: https://doi.org/10.15587/1729-4061.2015.51399
  9. Persson, H. (2011). Fighting an Ethanol Tank Fire Presents Unique Challenges. Ethanol. Available at: http://www.ethanolproducer.com/articles/7788/fighting-an-ethanol-tank-fire-presents-unique-challenge
  10. Fischer, S. J., Hardouin-Duparc, B., Grosshandler, W. L. (1987). The structure and radiation of an ethanol pool fire. Combustion and Flame, 70 (3), 291–306. doi: https://doi.org/10.1016/0010-2180(87)90110-6
  11. Sjöström, J., Amon, F., Appel, G., Persson, H. (2015). Thermal exposure from large scale ethanol fuel pool fires. Fire Safety Journal, 78, 229–237. doi: https://doi.org/10.1016/j.firesaf.2015.09.003
  12. Małozięć, D., Koniuch, A. (2009). This article discuss how foam extinguishing agents impacts the environment, especially water organisms. Bezpieczeństwo i Technika Pożarnicza, 2, 117–138. Available at: http://yadda.icm.edu.pl/baztech/element/bwmeta1.element.baztech-article-BGPK-2914-1624
  13. Rakowska, J. (2020). Remediation of diesel-contaminated soil enhanced with firefighting foam application. Scientific Reports, 10, 8824. doi: https://doi.org/10.1038/s41598-020-65660-3
  14. Balanyuk, V., Kozyar, N., Kravchenko, A. (2019). Method of sublayer fire extinguishing of alcohols by fire extinguishing aerosol. ScienceRise, 1, 11–15. doi: https://doi.org/10.15587/2313-8416.2019.156097
  15. Marková, I., Lauko, J., Makovická Osvaldová, L., Mózer, V., Svetlík, J., Monoši, M., Orinčák, M. (2020). Fire Size of Gasoline Pool Fires. International Journal of Environmental Research and Public Health, 17 (2), 411. doi: https://doi.org/10.3390/ijerph17020411
  16. Beyler, C. L. (2016). Fire Hazard Calculations for Large, Open Hydrocarbon Fires. SFPE Handbook of Fire Protection Engineering, 2591–2663. doi: https://doi.org/10.1007/978-1-4939-2565-0_66
  17. Fleming, J. W., Williams, B. A., Sheinson, R. S. (2002). Suppression effectiveness of aerosols: the effect of size and flame type. National Institute of Standards and Technology. doi: https://doi.org/10.6028/NIST.SP.984.4
  18. Zheng, L., Wang, Y., Yu, S., Li, G., Zhu, X., Yu, M., Wang, Y. (2019). The premixed methane/air explosion inhibited by sodium bicarbonate with different particle size distributions. Powder Technology, 354, 630–640. doi: https://doi.org/10.1016/j.powtec.2019.06.034
  19. Haipeng, J., Mingshu, B., Bei, L., Daqinga, M., Wei, G. (2019). Flame inhibition of aluminum dust explosion by NaHCO3 and NH4H2PO4. Combustion and Flame, 200, 97–114. doi: http://doi.org/10.1016/j.combustflame.2018.11.016
  20. Lott, J. L., Christian, S. D., Sliepcevich, C. M., Tucker, E. E. (1996). Synergism between chemical and physical fire-suppressant agents. Fire Technology, 32, 260–271. doi: https://doi.org/10.1007/BF01040218
  21. Babushok, V. I., Gubernov, V. V., Minaev, S. S., Miroshnichenko, T. P. (2017). Simple model of inhibition of chain-branching combustion processes. Combustion Theory and Modelling, 21 (6), 1066–1079. doi: https://doi.org/10.1080/13647830.2017.1338758

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Published

2021-02-23

How to Cite

Balanyuk, V., Kravchenko, A. ., & Harasymyuk, O. . (2021). Reducing the intensity of thermal radiation at the sublayer extinguishing of alcohols by ecologically acceptable aerosols . Eastern-European Journal of Enterprise Technologies, 1(10 (109), 37–44. https://doi.org/10.15587/1729-4061.2021.225216

Issue

Vol. 1 No. 10 (109) (2021): Ecology

Section

Ecology

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Copyright (c) 2021 Владимир Мирчевич Баланюк, Антон Викторович Кравченко, Александр Иванович Гарасимъюк

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