Simulation and experiment of leakage and diffusion of natural gas pipelines with different burial depths under different pressures.

ABSTRACT: In this paper, we studied the diffusion characteristics and distribution patterns of gas leakage in soil from buried natural gas pipelines. The three-dimensional simulation model of buried natural gas pipeline leakage was established using Fluent software. Monitoring points of gas leakage mole fraction were set up at different locations, and the influence of buried depth and pressure factors on the mole fraction and diffusion of leaked gas was analyzed. Additionally, a leakage pressure drop test of the buried natural gas pipeline was carried out. The results show that the CH₄ gas mole fraction curve at 0.03 m and 0.05 m below the leakage point fluctuates sharply during the second to third second of leakage, with the CH₄ gas mole fraction fluctuating by about 7%. The b

SUBMITTER: Zhang C 

PROVIDER: S-EPMC11685858 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature