Open AccessResearch on Influence Factors of Leakage and Diffusion of 5 m3 High Pressure Hydrogen Cylinder
Author(s) -
Qiang Chen,
Liu Zhan-qing,
Yanyun Liu,
Qiang Sun,
Wang Tian-xiang,
Gang Lei,
Li Su-jiang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/838/1/012014
Subject(s) - leakage (economics) , hydrogen , mechanics , cylinder , materials science , wind speed , environmental science , meteorology , chemistry , physics , engineering , mechanical engineering , economics , macroeconomics , organic chemistry
According to the characteristics of 5m 3 hydrogen cylinder in a hydrogenation station, the influence factors of high-pressure hydrogen leakage and diffusion under different leakage aperture, cylinder pressure and wind speed were studied by using the safety analysis software PHAST. The results show that the area of downstream dangerous cloud cluster and diffusion isolation area increases with the increase of leakage diameter, cylinder pressure and wind speed. The aperture has a great influence on the mass leakage rate and the distribution range of cloud clusters, while the cylinder pressure mainly affects the distribution of cloud clusters. The influence of pressure on mass leakage rate is not as obvious as the influence of aperture. The wind speed has no effect on the mass leakage rate, and has only a slight impact on the downstream cloud cluster distribution.