Author 1:
Name & Surname: Galaov R. B.
Company: Polar Division of PJSC “MMC “NORILSK NICKEL” (Norilsk, Russia)
Work Position: Deputy Director for Minerals and Raw Materials
Contacts: phone: + 7 (3919) 25-42-01

Author 2:
Name & Surname: Balchugov V. G.
Company: Polar Division of PJSC “MMC “NORILSK NICKEL” (Norilsk, Russia)
Work Position: Deputy Head of Underground Ventilation Section, Taimyrsky Mine

Author 3:
Name & Surname: Kazakov B. P.
Company: Mining Institute, Ural Branch, Russian Academy of Sciences (Perm, Russia)
Work Position: Principal Researcher, Aerology and Thermophysics Department
Scientific Degree: Professor, Doctor of Engineering Sciences

Author 4:
Name & Surname: Butakov S. V.
Company: AeroSfera Research and Production Association (Perm, Russia)
Work Position: Director

The article addresses a scientific and technical problem of current concern, connected with the normalization of microclimate in a deep mine, when air temperature in deep-level work zones is considerably higher than standard values (+26 °C) due to the geothermal gradient. In terms of Taimyrsky Mine of the Polar Division of Norilsk Nickel, where mining operations are carried out at depths of 1700 m and the mine air temperature reaches +40 °C, the authors present the research and the developed system for mine microclimate normalization by means of underground air conditioning. Based on in situ ventilation and temperature–humidity survey, using Aeroset program, a thermal model is constructed in the form of a map of actual temperatures in stopes, based on which the most efficient structure and systems for air conditioning and cool air distribution are determined, taking into account normalization of temperature in dead ends. The article describes basic component of the mine microclimate normalization system—split-type air conditioner KSHT-350N (350 kW), developed up to the level of the design documentation and intended for operation in automated air control systems meant for mines and underground facilities, including gas and dust hazardous.
The study is supported by the Russian Foundation for Basic Research, Project No. 15-05-04552.

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