Establishing patterns of nitrogen application for fire safety of sunflower grain storage facilities
DOI:
https://doi.org/10.15587/1729-4061.2022.266014Keywords:
sunflower grain, fire site, amount of nitrogen, fire extinguishing, oxygen concentrationAbstract
The issue of using nitrogen to eliminate fires in granaries is related to ventilating the grain mass with nitrogen while it is necessary to take into consideration the change in gas concentration. Therefore, the object of this research was the value of the minimum concentration of nitrogen to eliminate the combustion of sunflower grain. It has been proven that in the process of thermal destruction of sunflower grain, the composition of gaseous products of thermal destruction of sunflower grain contains more than 70 % of combustible gases. Namely: carbon monoxide, over 51 %; hydrogen, about 5.7 %; and hydrocarbons with a total concentration of 13.72 %, which provide fire hazardous properties of organic material. Therefore, it should be noted that the release of the amount of combustible gases during pyrolysis requires a reduction in the amount of oxygen in the gas-air environment to eliminate fire sites. Obviously, such a mechanism for the decomposition of sunflower grain during pyrolysis is a factor in regulating the extinguishing process, due to which the amount of nitrogen to eliminate combustion increases. Comparison of experimental studies on the composition of gaseous products of thermal destruction of sunflower grain and studies to determine the minimum fire extinguishing concentration of nitrogen, at which combustion was stopped, made it possible to justify the use of nitrogen. Based on the study's results on the elimination with nitrogen of fire sites of sunflower grain, the values of the minimum fire extinguishing concentration were revealed at extinguishing, about 33.7 % by volume. At the same time, terminating the combustion of sunflower grain occurs with a decrease in the concentration of oxygen in the gas-air environment of about 14 %. The practical significance is the fact that the results obtained for determining the minimum fire extinguishing concentration of nitrogen make it possible to establish operating conditions for granaries when eliminating fire sites
References
- Kubica, P., Boroń, S. (2018). Modeling of the process of the extinguishing gas concentration changes in the protected compartment. MATEC Web of Conferences, 247, 00041. doi: https://doi.org/10.1051/matecconf/201824700041
- Lang, L., Chengyun, X., Xinyu, L. (2017). Heat and mass transfer of liquid nitrogen in coal porous media. Heat and Mass Transfer, 54 (4), 1101–1111. doi: https://doi.org/10.1007/s00231-017-2167-4
- Shi, B., Zhou, F. (2016). Fire extinguishment behaviors of liquid fuel using liquid nitrogen jet. Process Safety Progress, 35 (4), 407–413. doi: https://doi.org/10.1002/prs.11815
- 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)), 4–11. doi: https://doi.org/10.15587/1729-4061.2016.72399
- Ma, Q., Wan, M., Shao, J., Zhang, H. (2020). Pool fire suppression performance by twin‐fluid water mist under low pressures in an altitude chamber. Process Safety Progress, 40 (1). doi: https://doi.org/10.1002/prs.12155
- Shi, B., Zhou, F. (2016). Application of a liquid nitrogen direct jet system to the extinguishment of oil pool fires in open space. Process Safety Progress, 36 (2), 165–177. doi: https://doi.org/10.1002/prs.11840
- Reformatskaya, I. I., Begishev, I. R., Ascheulova, I. I., Podobaev, A. N. (2020). Nitrogen Protection as Anticorrosion and Fireproofing Measure in the Use of Sour Crude Oil Storage Tanks. Chemical and Petroleum Engineering, 56 (7-8), 563–568. doi: https://doi.org/10.1007/s10556-020-00810-y
- Li, X., Zhang, G., Zhu, G., Yuan, D., Guo, D. (2022). Effect of blocking state on the fire-extinguishing efficiency of liquid nitrogen in a long and narrow space. Case Studies in Thermal Engineering, 29, 101720. doi: https://doi.org/10.1016/j.csite.2021.101720
- Ni, X., Zheng, Z., Li, G., Wang, X. (2021). Evaluating the suppression effectiveness of hybrid nitrogen and water mist with a cup burner coflowing flame. Fire and Materials, 46 (2), 388–396. doi: https://doi.org/10.1002/fam.2966
- Gałaj, J., Drzymała, T. (2018). Assessment of extinguishing efficiency of hybrid system using water mist and inert gas during class A fires. MATEC Web of Conferences, 247, 00013. doi: https://doi.org/10.1051/matecconf/201824700013
- Ji, H., Li, Y., Su, H., Cheng, W., Wu, X. (2019). Experimental Investigation on the Cooling and Inerting Effects of Liquid Nitrogen Injected into a Confined Space. Symmetry, 11 (4), 579. doi: https://doi.org/10.3390/sym11040579
- Liu, H., Wang, F. (2019). Research on N2-inhibitor-water mist fire prevention and extinguishing technology and equipment in coal mine goaf. PLOS ONE, 14 (9), e0222003. doi: https://doi.org/10.1371/journal.pone.0222003
- Li, H., Zhang, G., Jia, B., Zhu, G., Guo, D., Zhang, P. (2021). Experimental investigation on extinguishing characteristics of liquid nitrogen in underground long and narrow space. Tunnelling and Underground Space Technology, 114, 104009. doi: https://doi.org/10.1016/j.tust.2021.104009
- Yu, H.-Z., Kasiski, R., Daelhousen, M. (2014). Characterization of Twin-Fluid (Water Mist and Inert Gas) Fire Extinguishing Systems by Testing and Modeling. Fire Technology, 51 (4), 923–950. doi: https://doi.org/10.1007/s10694-014-0428-z
- Tsapko, Y., Tsapko, А. (2017). Establishment of the mechanism and fireproof efficiency of wood treated with an impregnating solution and coatings. Eastern-European Journal of Enterprise Technologies, 3 (10 (87)), 50–55. doi: https://doi.org/10.15587/1729-4061.2017.102393
- ISO 14520-1:2000(E). Gaseous fire-extinguishing systems. Physical properties and system design. Part 1: General requirements. ISO, 70. Available at: https://www.irdetect.ro/ISO14520-1-2000.pdf
- Tsapko, Y., Rogovskii, I., Titova, L., Bilko, T., Tsapko, А., Bondarenko, O., Mazurchuk, S. (2020). Establishing regularities in the insulating capacity of a foaming agent for localizing flammable liquids. Eastern-European Journal of Enterprise Technologies, 5 (10 (107)), 51–57. doi: https://doi.org/10.15587/1729-4061.2020.215130
- Tsapko, Y., Tsapko, А. (2017). Influence of dry mixtures in a coating on the effectiveness of wood protection from the action of a magnesium flame. Eastern-European Journal of Enterprise Technologies, 5 (10 (89)), 55–60. doi: https://doi.org/10.15587/1729-4061.2017.111106
- Tsapko, Y., Rogovskii, I., Titova, L., Shatrov, R., Tsapko, А., Bondarenko, O., Mazurchuk, S. (2020). Establishing patterns of heat transfer to timber through a protective structure. Eastern-European Journal of Enterprise Technologies, 6 (10 (108)), 65–71. doi: https://doi.org/10.15587/1729-4061.2020.217970
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2022 Yuriy Tsapko, Kostiantyn Sokolenko, Roman Vasylyshyn, Oleksandr Melnyk, Аleksii Tsapko, Olga Bondarenko, Anatolii Karpuk
This work is licensed under a Creative Commons Attribution 4.0 International License.
The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.
A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.
