Modeling of thermal distribution   on cryosurface for low temperatures

Olga Vorobyova; Dmitriy Sokolov; Yevgeniy Korshikov

doi:10.26577/phst202512111

Authors

Olga Vorobyova Al-Farabi Kazakh National University, Almaty Technological University https://orcid.org/0000-0001-7942-6562
Dmitriy Sokolov Al-Farabi Kazakh National University, Almaty Technological University https://orcid.org/0000-0001-7966-1140
Yevgeniy Korshikov Al-Farabi Kazakh National University https://orcid.org/0000-0002-9479-4192

DOI:

https://doi.org/10.26577/phst202512111

6 3

Abstract

In this work, the temperature distribution on a cryosurface operating at low temperatures (in the range from 300 K to 80 K) was thoroughly studied. This type of cryogenic cooling surface is specifically designed for experimental processes that involve the controlled deposition and subsequent cooling of various inorganic compounds. Such processes are essential for conducting detailed investigations into the physicochemical properties, morphology, and structure of these materials under cryogenic conditions. The temperature distribution was analyzed through numerical simulation, which included modeling the cooling process of the cryopanel surface down to cryogenic temperatures using the finite element method. Liquid nitrogen was selected as the working coolant due to its availability, low boiling point, and high efficiency in achieving the required cooling rate. The simulation results revealed the temperature gradient both within the volume and on the surface of the cryopanel. Additionally, the influence of the thermal conductivity of different structural materials–aluminum and stainless steel–on the cooling efficiency was examined. The desired cryosurface temperature range (80–90 K) was successfully reached within 1800 seconds, using a nitrogen flow through a coiled pipe of 6 mm in diameter.

Key words: cryosurface, computer modelling, thermal distribution, low temperatures, thermal conductiv ity.

Author Biographies

Olga Vorobyova, Al-Farabi Kazakh National University, Almaty Technological University

PhD student of educational program «8D07106-Thermal Power Engineering» of Physics and Technology Department at Al-Farabi Kazakh National University, Research Fellow at the Almaty Technological University (Almaty, Kazakhstan, email: olga.vorobyova842@gmail.com);

Dmitriy Sokolov, Al-Farabi Kazakh National University, Almaty Technological University

PhD, Associate Professor of Physics and Technology Department at Al-Farabi Kazakh National University, Scientific Project Manager at the Almaty Technological University (Almaty, Kazakhstan, email: yasnyisokol@gmail.com)

Yevgeniy Korshikov, Al-Farabi Kazakh National University

PhD of Physics and Technology Department at Al-Farabi Kazakh National University, Senior Research Fellow at the Almaty Technological University (Almaty, Kazakhstan, email: e.s.korshikov@physics.kz)