Screening Optimal Thickness of an Underground Pipeline's Thermal Insulation with the Aim of Minimizing Thawing Halo in the Ground in Conditions of Central Yakutia

International science and technology conference "Earth science"

Ivanov, V.A.^1 ; Rozhin, I.I.^1

Institute of Oil and Gas Problems SB RAS, 1 ul. Oktyabrskaya, Yakutsk

677980, Russia^1

关键词: Air temperature;    Ground surfaces;    Optimal thickness;    Snow thickness;    Thermal interaction;    Thermal modes;    Underground gas pipelines;    Underground pipeline;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/272/2/022134/pdf
DOI  :  10.1088/1755-1315/272/2/022134

来源: IOP

【 摘 要 】

The paper describes a study of thermal interaction between underground gas pipeline and surrounding permafrost and seasonally thawing soil. A forecast of the soil's thermal mode depending on thermal insulation on the pipeline is made by means of numerical simulation with finite elements method. The analysis accounts for air temperature, thermal radiation balance of the ground surface, wind speed and snow thickness.