Numerical Simulation Analysis of Dangerous Heavy Gas Leakage and Diffusion

Ning Zhou; Wei Cui; Kai Quan Wang; Hui Jun Zhao

doi:10.4028/www.scientific.net/AMR.726-731.1354

Paper Titles

Investigation and Assessment on Landscape Water of Kaifeng
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Levels and Characteristics of Carbonyl Compounds Indoor Malls and their Relationship with Ozone
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Measurement of ¹⁵N and ¹⁸O Isotope Abundance of Nitrate Using Denitrifier Method on Tracegas-Isotope Ratio Mass Spectrometry
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Microbial Detection and Analysis of the Barreled Pure Water in the Campus
p.1350

Numerical Simulation Analysis of Dangerous Heavy Gas Leakage and Diffusion
p.1354

Optimal Harvesting Strategy of Inshore-Offshore Species
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Preparation and Adding Methods of Nessler's Reagent Having Effects on Determination of Water Quality Ammonia Nitrogen
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Research on Hydrochemistrical Characteristics of Shallow Groundwater from Huainan City
p.1367

Spatial and Temporal Distribution and Air Quality Evaluation of the Indoor Air Microorganisms in Summer Campus
p.1373

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Numerical Simulation Analysis of Dangerous Heavy...

Numerical Simulation Analysis of Dangerous Heavy Gas Leakage and Diffusion

Abstract:

Using Fluent to simulate dangerous heavy gas leakage and diffusion of oil tank farm under different conditions. The analysis results show that the diffusion processes of heavy gas can be divided into four stages like gravity settling stage, air entrainment stage, cloud heating stage and the stage of transformation to the non-heavy gas diffusion. While the gas leakage occurs in the middle position of the tank farm, the gas diffusion speed is slow and the gas concentration is easy to achieve the explosive limit. When the wind velocity is 0.95 m/s, the diffusion velocity of heavy gas increases with the wind velocity, gas concentrations rises obviously. When the wind velocity reaches to 1.7 m/s, the gas concentration will reach the peak, as the wind velocity increases, the gas concentration reduces slowly.