The Study of the Efficiency of Use of Air-Conditioning Systems to Ensure Safety of Mine-Rescue Operations in the Area of High Air Temperatures



Annotation:

Today, the problem of increased air temperatures in excavations of shafts and mines limiting or hampering mine-rescue operations is crucial. The existing technical solutions primarily aim to reduce the effects of heating microclimate on the mine rescuers via the use of individual and collective anti-heat equipment. Meanwhile, a potentially prospective means to ensure safe thermal effects on rescuers is to reduce the air temperature along their route via the use of air conditioning systems. The article is dedicated to developing a methodology for the air-conditioning system calculation to ensure the safety of mine-rescue operations.  The developed methodology is conceptual and based on the principle of equity of the duration and intensity of cooling and heating effects of the environment on mine rescuers, considering the differentiation of the mine-rescue operations’ route by the parameters of tracing and microclimate following the requirements of the Instruction on localization and elimination of accident consequences.  The calculations based on the proposed methodology enable the determination of the cooling capacity of the conditioning system that normalizes the microclimate along the entire length of the mine-rescue operations’ route as well as the maximum air temperature on the route. It is assumed that the developed methodology can be useful in the design of regular and emergency air-conditioning systems.

References:
1. Zaytsev A.V. Scientific basis for calculation and control over thermal regime of underground mines: thesis ... Doctor of Technical Sciences. Perm, 2019. 247 p. (In Russ).
2. Levin L.Yu., Zaitsev A.V., Butakov S.V., Semin M.A. Normalization of microclimate in deep potash mines. Gornyy Zhurnal = Mining Journal. 2018. Vol. 8. рр. 97–102. (In Russ). DOI: 10.17580/gzh.2018.08.14
3. On approval of the Federal norms and rules for industrial safety «Safety rules for mining and processing of solid minerals»: the Order of Rostechnadzor of December 8, 2020, № 505. Available at: https://docs.cntd.ru/document/573156117 (accessed: January 20, 2024). (In Russ).
4. On approval of the Federal norms and rules for industrial safety «The instruction on localization and elimination of accident consequences at hazardous production facilities where mining operations are conducted»: the Order of Rostechnadzor of December 11, 2020, № 520. Available at: https://docs.cntd.ru/document/573140267 (accessed: January 20, 2024). (In Russ).
5. Stefopoulos E.K., Damigos D.G. Design of emergency ventilation system for an underground storage facility. Tunnelling and Underground Space Technology. 2007. Vol. 22. Iss. 3. pp. 293–302. (In Russ). DOI: 10.1016/j.tust.2006.07.002
6. Kuzin V.A. Mine air-conditioning: study manual. Dnepropetrovsk: NGU, 2014. 368 p. (In Russ).
7. Liskova M.Yu., Voronkova Yu.A., Golik V.I. Basic methods of normalization thermal regime of mine. Izvestiya Tulskogo gosudarstvennogo universiteta. Nauki o Zemle = Proceedings of the Tula State University. Sciences of Earth. 2018. № 4. pp. 85–94. (In Russ).
8. Zaytsev A.V., Kazakov B.P., Grishin E.L. The development of integrated systems for normalization of microclimatic conditions of excavations in deep mines. Problemy bezopasnosti i effektivnosti osvoeniya georesursov v sovremennykh usloviyakh: materialy nauch.-prakt. konf., posvyashchennoy 25-letiyu Gornogo instituta Uro RAN i 75-letiyu osnovatelya i pervogo direktora instituta chl.-korr. RAN Arkadiya Evgenevicha Krasnoshteyna (The problems of safety and efficiency of the development of geological resources under current conditions: the materials of the scientific and practical conference dedicated to the 25th anniversary of the Mining Institute UB RAS and the 75th anniversary of the founder and the first director of the Institute, the corresponding member of RAS, Arkady Yevgenievich Krasnoshtein). Perm. 2014. pp. 372–375. (In Russ).
9. Kostenko T.V. Increased safety and tactical abilities of rescuers in liquidation of fires with high heat release. Vestnik Priazovskogo gosudarstvennogo tekhnicheskogo universiteta. Ser.: Tekhnicheskie nauki = Bulletin of the Azov State Technical University. Series: Technical sciences. 2016. № 33. pp. 198–205. (In Russ).
10. Aprosimova E.P. Comparative analysis of the optimization of rescue chambers of underground mines. Gornyy informatsionno-analiticheskiy byulleten (nauchno-tekhnicheskiy zhurnal) = Mining informational and analytical bulletin (scientific and technical journal). 2011. № 11. pp. 285–287. (In Russ).
11. Korshunov G.I., Krotov N.V., Beznosenko M.I., Gridina E.B., Smirnyakov V.V., Mironenkova N.A. Mine-rescue instrumentation and equipment: study manual. Saint Petersburg, 2011. 279 p. (In Russ).
12. Cherunova I.V. Designing anti-heat suits. Shakhty: YuRGUES, 2007. 150 р. (In Russ).
13. T.V. Kostenko, V.K. Kostenko, S.М. Aleksandrov. Perfection of individual heat protective means of rescuers. Vestnik Priazovskogo gosudarstvennogo tekhnicheskogo universiteta. Ser.: Tekhnicheskie nauki = Bulletin of the Azov State Technical University. Series: Technical sciences. 2017. № 35. рр. 263–270. (In Russ).
14. Halim A.E., Brune J.F. Do refuge chambers represent a good strategy to manage emergencies in underground coal mines? Mining, Metallurgy & Exploration. 2019. Vol. 36. № 4. рр. 1191–1199. DOI: 10.1007/s42461-019-0100-8
15. Adjiski V., Mirakovski D., Despodov Z., Mijalkovski S. Simulation and optimization of evacuation routes in case of fire in underground mines. Journal of Sustainable Mining. 2015. Vol. 14. Iss. 3. рр. 133–143. DOI: 10.1016/j.jsm.2015.10.001
16. Salami O.B., Xu G., Kumar A.R., Pushparaj R.I. Underground mining fire hazards and optimization of emergency evacuation strategies (EES): The issues, existing methodology and limitations, and way forward. Process Safety and Environmental Protection. 2023. Vol. 177. рр. 617–634. DOI: 10.1016/j.psep.2023.07.012
17. SanPiN 1.2.3685—21. Hygienic standards and requirements to ensure safety and(or) harmlessness of environmental factors for a human. Available at: https://rkc56.ru/documents/4538 (accessed: January 20, 2024). (In Russ).

DOI: 10.24000/0409-2961-2024-3-7-13
Year: 2024
Issue num: March
Keywords : safety assurance mine air-conditioning system mine accident mine-rescue operations underground microclimate
Authors:
  • Zaytsev A.V.
    Dr. Sci. (Eng.), Sector Leader Mining Institute UB RAS, Perm, Russia
  • Perestoronin M.O.
    Engineer, per.maks1m.97@gmail.com, Mining Institute of the Ural Branch of the Russian Academy of Sciences, Perm, Russian Federation