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Numerical investigation on the dispersion of hydrogen vapor cloud with atmospheric inversion layer
- Source :
- International Journal of Hydrogen Energy. 44:23513-23521
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Characterization of the dispersion behaviors of spilled liquid hydrogen is necessary from the safety prospective. In this study, the two-phase flow of liquid hydrogen spill is predicted with the mixture multiphase model, Lee model and Realizable k-e model, and the dispersion of hydrogen vapor cloud with the atmospheric inversion layer is numerically analyzed. The inversion layer restrains the upward movement of the cloud and the mixing of the cloud with air, increasing its ground-level hydrogen concentration. The heights of the flammable cloud can be reduced by 5.71%, 10.49% and 12.86%, respectively, with the temperature lapse rates of 0.03, 0.06 and 0.10 K/m in our investigated scenarios. Besides, the restraining effect is strengthened by increasing the ground air temperature if the temperature lapse rate remains unchanged.
- Subjects :
- Flammable liquid
Materials science
Hydrogen
Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
chemistry.chemical_element
Inversion (meteorology)
Lapse rate
02 engineering and technology
Mechanics
Vapor cloud
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
0104 chemical sciences
chemistry.chemical_compound
Fuel Technology
chemistry
Air temperature
Hydrogen concentration
0210 nano-technology
Liquid hydrogen
Subjects
Details
- ISSN :
- 03603199
- Volume :
- 44
- Database :
- OpenAIRE
- Journal :
- International Journal of Hydrogen Energy
- Accession number :
- edsair.doi...........930ea0fdaedf07cf6390dfa78051c7f2