Gas Dispersion Modelling assessment looks at the dispersion of smoke generated by fire events and unignited flammable/ toxic gas due to loss of containment/ leak incidents. Such incidents may create a hazardous situation where personnel safety is compromised if exposed to a toxic gas cloud or plumes of smoke obscure their vision.
When a gas or vapour is released into the atmosphere, it disperses in the atmosphere. This is a process whereby the original vapour cloud is diluted with the surrounding air as time passes. As the wind is defined as the movement of air from one point to another, any vapour released into the air will naturally travel with the wind, that is, the wind advects it. These scenarios can be modelled using industrial recognised software (2D or 3D approach) to estimate the extent of the gas cloud based on its release characteristic, location of release, wind condition and the like.
