Earth’s Cryosphere, 2023, Vol. XXVII, No. 4, p. 33-39.
PERMAFROST ENGINEERING
ANALYTICAL SOLUTION OF THE PROBLEM OF OPERATION OF DEEP SEASONAL COOLING DEVICES TO ASSESS THEIR EFFICIENCY
G.V. Anikin1, A.A. Ishkov2,3,*
1 Earth Cryosphere Institute, Tyumen Scientific Center of Siberian Branch of the Russian Academy of Sciences, Malygina St. 86, Tyumen, 625026 Russia
2 Tyumen Industrial University, Volodarskogo St. 38, Tyumen, 625000 Russia
3 LLC “PetroTrace”, Letnikovskaya St. 10, Build. 4, Moscow, 115114 Russia
*Corresponding author; e-mail: a.a.ishkov@yandex.ru
An analytical solution to the problem of operation of deep seasonal cooling devices (SCDs) based on the assumption of a quasistationary regime of soil freezing by the system evaporator is suggested. The application of the proposed solution for one of the design configurations of a deep SCD on thawed soils with different thermal conductivity under the weather conditions of Salekhard city is considered. We obtained the values of the radius of soil freezing around the evaporator tube as a function of depth at different time intervals of system operation. This analytical model can be easily applied at the design stage to evaluate and optimize the design of thermal stabilization systems in particular geocryological zones for different thermophysical characteristics of soils taking into account the aggregate state of water in them.
Keywords: permafrost, soil, heat and mass transfer, deep seasonal cooling device, modeling.
Recommended citation: Anikin G.V., Ishkov A.A., 2023. Analytical solution of the problem of operation of deep seasonal cooling devices to assess their efficiency. Earth’s Cryosphere XXVII (4), 33–39.