Scientific Journal Problems of Emergency Situations - K. Ostapov, Y. Senchykhyn, V. Avetisуan, I. Kirichenko, O. Tarasenko. Іmprovement of the undercar extinguishing trolley with a gel-forming composition sprayer. Р. 109-123.

Together with the general improvement of the undercarriage fire extinguishing trolley at metro stations, a universal mixer-sprayer of the gel-forming composition is proposed. Solutions have been worked out on laboratory equipment, which ensure an increase in the efficiency of fire extinguishing, and ultimately simplify the conditions for conducting rescue operations at subway stations. The project of improving the cart with a mixer-sprayer of gel-forming compositions is proposed. The improved trolley makes it easier to carry out rescue operations and increases the efficiency of extinguishing. The gel-forming fire-extinguishing substance itself covers the burning elements of the undercarriage equipment without excessive loss of mass. As a result of research: the tactical and technical advantages of undercarriage fire extinguishing in the subway with gel-forming systems using a universal mixer-sprayer, which is an integral part of an improved narrow-gauge trolley, have been proven. Rational solutions are proposed that shorten the time of extinguishing fires at stations and reduce the consumption of extinguishing agents by 10–20 % compared to other previously proposed fire extinguishing devices under cars at metro stations. Simulation studies of the tactical and technical qualities of the improved cart with a universal mixer-sprayer of gel-forming composition of the «Segner wheel» type were carried out. The cart is capable of extinguishing likely complex fires under cars at subway stations. In addition, in all cases of under-car fire extinguishing at subway stations, it is expected to improve the conditions of emergency rescue operations when evacuating people from the station premises and from the cars involved in the fire.

References

Wei, Z., Xi, Z., Zhuo-fu, W. (2016). Experiment study of performances of fire detection and fire extinguishing systems in a subway train. Procedia Engineering, 135, 393–402. doi: 1016/j.proeng.2016.01.147
Saveliev, D., Khrystych, O., Kirieiev, O. (2018). Binary fire-extinguishing systems with separate application as the most relevant systems of forest fire suppression. European journal of technical and natural science, 1, 31–36. Available at: http://repositsc.nuczu.edu.ua/handle/123456789/7121
Ostapov, K., Senchihin, Yu., Syrovoy, V. (2017). Development of the installation for the binary feed of gelling formulations to extinguishing facilities. Science and education a new dimension. Natural and technical sciences, 132, 75–77. Available at: http://repositsc.nuczu.edu.ua/handle/123456789/3891
Dale, L. (2018). Ambulatory surgery center safety guidebook. Managing code requirements for fire and life safety, 15, 23–26. doi: 10.1016/B978-0-12-849889-7.00005-4
Ostapov, K. et al. (2021). Improving the installation of fire gasing with gelelating compounds. Problems of emergency situations, 33, 4–14. Available at: http://repositsc.nuczu.edu.ua/handle/123456789/14116
Zhanga, L., Wua, X., Liub, M., Liuc, W., Ashuri, B. (2019). Discovering worst fire scenarios in subway stations: A simulation approach. Automation in construction, 99, 183–196. doi: 10.1016/j.autcon.2018.12.007
Gravit, M. Vaititckii, A. Shpakova, A. (2016). Subway constructions fire safety regulatory. Requirements procedia engineering,165, 1667–1672. doi: 10.1016/
proeng.2016.11.908
Pietukhov, R., Kireev, A., Slepuzhnikov, E., Chyrkina, M., Savchenko, A. (2020). Lifetime research of rapid-hardening foams. Problems of emergency situations, 31, 226–233. Available at: http://repositsc.nuczu.edu.ua/handle/123456789/11675
De-xu, D., Xu-hai, P., Min, H. (2018). Experimental study on fire extinguishing properties of compound superfine powder. Procedia engineering, 142–148. doi: 10.1016/j.proeng.2017.12.126
Ng, Y., Chow,, Cheng, C., Chow, C. (2019). Scale modeling study on flame colour in a ventilation-limited train car pool fire. Tunnelling and underground space technology, 85, 375–391. doi: 10.1016/j.tust.2018.12.026
Long, Z., Zhong, M., Chen, J., Cheng, H. (2023). Study on emergency ventilation strategies for various fire scenarios in a double-island subway station. Journal of Wind Engineering and Industrial Aerodynamics, 235, 105364. doi: 10.1016/j.jweia.2023.105364
Wang, K., Cai, W., Zhang, Y., Hao, H., Wang, Z. (2021). Numerical simulation of fire smoke control methods in subway stations and collaborative control system for emergency rescue. Process Safety and Environmental Protection, 147, 146–161. doi: 10.1016/j.psep.2020.09.033
Ostapov, K. M., Senchykhin, Yu. M., Avetisyan, V. H., Haponenko, Yu. I., Kyrychenko, I. K. (2023). Pidvyshchennya efektyvnosti hasinnya pozhezh u pidvahonomu prostori metro heleutvoryuyuchymy skladamy. Problemy nadzvychaynykh sytuatsiy, 2(38), 267–280. Available at: http://pes.nuczu.edu.ua/
images/arhiv/38/18.pdf
Ostapov, K., Kirichenko, I., Senchykhyn, Y. (2019). Improvement of the installation with an extended barrel of cranked type used for fire extinguishing by gel-forming compositions. Eastern-European Journal of Enterprise Technologies, 4(10(100)), 30–36. doi: 10.15587/1729-4061.2019.174592
Ostapov, K. M., Senchykhin, Yu. M., Avetisyan, V. H., Melezhyk, R. S. (2023). Pat. 154597 Ukrayina, MPK (2023.01) A62S 35/00 Vizok dlya pidvahonnoho hasinnya pozhezh heleutvoryuchymy skladamy zayavnyk ta patentovlasnyk Nats. u-t tsyv. zakh. Ukrayiny, u202303215; 03.07.2023, 23.11.2023. Available at: http://repositsc.nuczu.edu.ua/handle/123456789/18841