Mining Institute, Ural Branch, Russian Academy of Sciences (Perm, Russia)

A. V. Zaitsev, Head of Laboratory, Doctor of Engineering Sciences, artem.v.zaitsev@yandex.ru
O. S. Parshakov, Researcher, Candidate of Engineering Sciences
D. V. Olkhovskiy, Researcher, Candidate of Engineering Sciences
D. A. Borodavkin, Researcher, Candidate of Engineering Sciences
M. O. Perestoronin, Engineer
A. E. Sukhanov, Junior Researcher

The paper presents the main results of recent fundamental and applied research conducted by the Perm School of Mine Aerology in the field of microclimate normalization systems for deep mines. The specific features of thermal regime formation in different types of mine workings are considered. It is shown that the selection of microclimate normalization methods should take into account not only the mining depth and surrounding rock temperature, but also the location of the working area, type of mine working, heat sources, and ventilation conditions. Methods for predicting and normalizing microclimatic conditions in blind headings are considered with allowance for convective and radiative heat transfer between the surrounding rock mass, ventilation duct, and cooled air. The specific features of transient thermal regime formation in longwall working areas under variable heat generation from mining equipment are demonstrated. The results of numerical modeling of various methods for local cooling of the mining machine operator’s working area are presented. The results of the development of a low-power mobile air conditioning system in an explosion-proof design for local cooling of work areas are presented. A diagram is proposed for selecting solutions for microclimate normalization in different mine zones depending on the surrounding rock temperature and taking into account developed microclimate normalization methods. Promising directions for further research are identified, including thermal insulation of mine workings, the use of dedicated air-supply workings, implementation of the “cooling-on-demand” concept, evaporative cooling, and the development of personal heat-protection equipment.
The study was carried out with financial support from the Ministry of Science and Higher Education of the Russian Federation under state assignment (R&D Project No. 126012716039–2).

1. Zhang G., Jiang Z., Wang H., Jing X., Si M. et al. The couple d cooling effect of ventilation and spray in the deep-buried high-temperature tunnel. Case Studies in Thermal Engineering. 2023. Vol. 45. ID 103011.
2. Li X., Chen Z., Huang L., Li B., Yan J. et al. Life cycle dynamic formation temperature response and thermal energy extraction of mine geothermal system considering groundwater flow. International Journal of Mining Science and Technology. 2025. Vol. 35, Iss. 1. pp. 1–17.
3. Pretorius J . G., Mathews M. J., Maré P., Kleingeld M., Van Rensburg J. Implementing a DIKW model on a deep mine cooling system. International Journal of Mining Science and Technology. 2019. Vol. 29, Iss. 2. pp. 319–326.
4. Zheng Q., Ke Y ., Wang H. Design and evaluation of cooling workwear for miners in hot underground mines using PCMs with different temperatures. International Journal of Occupational Safety and Ergonomics. 2022. Vol. 28, Iss. 1. pp. 118–128.
5. Arens V. Zh., Dmitriev A. P., Dyadkin Yu. D. et al. Thermal physic s aspects of subsoil resource mastering. Leningrad : Nedra, 1988. 336 p.
6. Shcherban A. N., Kremnev O. A., Zhuravlenko V. Ya. Guide for regulation of heat regime of mines. 3^rd revised a nd enlarged edition. Moscow : Nedra, 1977. 359 p.
7. Park D. K., Lee Y. Numerical Simulations on the Application of a Closed-Loop Lake Water Heat Pump System in the Lake Soyang, Korea. Energies. 2020. Vol. 13, Iss. 3. ID 762.
8. Karelin V. N, Kravchenko A. V., Levin L. Yu, Kazakov B. P., Zaitsev A. V. Features of fo rming microclimatic conditions in mining excavations of deep mines. Eurasian Mining. 2013. No. 2. pp. 35–38.
9. You S., Sun J., Ji H., Feng Q. Analysis of Thermal Environment and Its Influencing Factors in Deep Stope of Metal Mine. Geofluids. 2022. Vol. 2022, No. 1. ID 6408714.
10. Wang C., Cheng L., Hao Y., Jiang M., Chen K. et al. Efficiency improvement and application of the groundwater heat pump cooling system in linglong gold mine. Geofluids. 2022. Vol. 2022, No. 1. ID 3191735.
11. Levin L. Yu., Zaitsev A. V. Simulation, Design, and Control of the Thermal Regime of Deep Mines. Doklady Earth S ciences. 2022. Vol. 507. pp. 1160–1168.
12. Software for designing and simulating underground mine ventilation. AeroSet, 2022. Available at: https://aeroset.net (accessed: 29.04.2026).
13. Olkhovsky D., Zai tsev A., Bublik S. Study on the influence of radiation heat transfer on microclimatic parameters in the blind heading of a deep potash mine. International Journal of Thermal Sciences. 2024. Vol. 199. ID 108904.
14. Isaevich A. G. Justification of the applicability of the exhaust ventilation method for dust control. Gornoe ekho. 2022. No. 1(86). pp. 133–139.
15. Isaevich A. G., Semin M. A., Fay nburg G. Z., Aleksandrova M. A. On the inefficiency of the forced ventilation method in solving the problem of normalizing dust environment in the dead-end face of the potash mine. Bezopasnost Truda v Promyshlennosti. 2022. No. 6. pp. 52–59.