Formulations of The Dense Gas Dispersion Problem

1983 ◽  
pp. 27-52
Author(s):  
S. F. Jagger
Keyword(s):  
Dense Gas ◽  
Gas Dispersion ◽  
Dispersion Problem

Study on Theory of Hazardous Gas Puff Dispersion

2012 ◽  
Vol 518-523 ◽  
pp. 1625-1629 ◽  
Author(s):  
Yuan Pan Zheng ◽  
Jun Jie Guo ◽  
Xin Xin Liu ◽  
Xiao Ke Su
Keyword(s):  
Field Tests ◽  
Critical Parameters ◽  
Dense Gas ◽  
Wind Tunnel Experiments ◽  
Gas Dispersion ◽  
Whole Process ◽  
Wind Dispersion ◽  
Dispersion Problem ◽  
Time Standard ◽  
Hazardous Gas

In order to provide some possible scientific guidance for the investigation to puff dispersion of hazardous gas, some theoretical methods were used to deduce the critical parameters for description of puff dispersion behavior. In addition, some important issues such as how to distinguish dense gas dispersion from non-dense gas dispersion and the whole process to investigate a typical puff dispersion problem are also discussed. Finally some useful algorithms for standard deviation of concentration distribution over time, standard along-wind dispersion coefficient, et al. are deduced. These results can be potential scheme for puff field tests, wind tunnel experiments and especially for numerical simulations.

scholarly journals Dense gas dispersion model development and testing for the Jack Rabbit II phase 1 chlorine release experiments

2018 ◽  
Vol 192 ◽  
pp. 218-240 ◽  
Author(s):  
Simon Gant ◽  
Jeffrey Weil ◽  
Luca Delle Monache ◽  
Bryan McKenna ◽  
Maria M. Garcia ◽  
...  
Keyword(s):  
Dispersion Model ◽  
Phase 1 ◽  
Model Development ◽  
Dense Gas ◽  
Gas Dispersion

scholarly journals CFD Analysis of Indoor Chlorine Gas Dispersion Storage: Temperatures, Wind Velocities and Ventilation Effects Studies

2016 ◽  
Vol 16 (1) ◽  
pp. 1
Author(s):  
M. Safakar ◽  
S. Syafiie ◽  
R. Yunus
Keyword(s):  
Ground Level ◽  
Dense Gas ◽  
Human Beings ◽  
Potential Health ◽  
Gas Dispersion ◽  
Indoor Space ◽  
Hazardous Chemical ◽  
Chlorine Gas ◽  
Different Temperatures ◽  
Wind Velocities

The Chemical products factories encounter inherent environmental risks in the process. The indoor release of hazardous chemical gases that are heavier than the air is nowadays a special subject for scrutiny because the dense clouds of the gas have a tendency to insist on the ground level or near the human breath level, causing fatal injuries or other potential health threats to human beings. In this study, a computational fluid dynamics (CFD) code FLUENT was employed in order to model the accidental indoor dispersion of a dense gas (chlorine) from a small undetected leak in an indoor industrial environment. Furthermore, the effects of different temperatures, wind velocities and ventilation on diffusion of chlorine are investigated in this paper. Results of the simulations represented that the chlorine gas dispersion would behave like the liquid and currents on the floor. It was also found that the chlorine concentration above the ground level increased slowly. Showing the effects of various temperatures and wind on spreading the dense gas will help to better identify the potential risks. In this research, the effects of the environmental situations with the release and spread of chlorine in the indoor space were meticulously investigated.

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