GASP

GASP (Gas Accumulation over Spreading Pools) is a pool spread and vaporisation model that has been developed in association with the UK Health and Safety Executive (HSE).

GASP’s capabilities include:

• A unified model for wind driven vaporisation (evaporation) and boiling
• Pool spreading over smooth land, rough land and deep water
• Pool constraints (e.g. bunds)
• Effects of different ambient conditions such as air temperature, wind speed, humidity and solar flux
• Two-dimensional time-dependent heat conduction from the ground and convection from the atmosphere

GASP interfaces to ESR Technology’s gas dispersion model DRIFT 3 for prediction of downwind effects.

Why choose GASP?

• Developed for the UK HSE, the model has undergone extensive verification and validation testing.
• GASP is coded for speed and efficiency, producing reliable results in seconds.
• Features a comprehensive graphical user interface and the ability to batch run multiple input files.
• Highly customisable input and outputs. Includes support for user defined fluids, substrates, result tables and graphs.

Who uses GASP?

We have licensed GASP to a wide variety of organisations since its initial release in the 1990s.  Typical users include:

• Safety and Risk Consultants
• Regulators
• Operators
• Academic Institutions

Model Validation

A full list of published papers relating to GASP is available here, which includes the following

• A Model for Pool Spreading and Vaporisation and its Implementation in the Computer Code GASP
• Modelling of liquid hydrogen spills, HSE Research Report RR985
• LNG source term models for hazard analysis, HSE Research Report RR789