Q1 (a) Discuss, briefly, the pros and cons of using simple consequence models listed below

Miscible Liquid Mixtures

Pi = SVPi xi (Raoults Law)

Gas is soluble in liquid

Henrys law Ci = HiPi )

Liquid Releases - Bernoulli

+ / + = t

For holes in tanks

Gas or Vapour Releases

Flashing Liquids

-Gaussian Model for Passive Dispersion

Near field - dispersion around obstacles: Field models, CFD

Mid range - overall dispersion around plant: integral models

Far field - integral passive models or CFD models (required details of wind field)

- 3D CFD model

- FLACS, FEM3

- Use of Probits

Thermal Radiation Models:

- Point Source Model - API RP521

- Multi Point Models

- Surface Emitter Model

Jet Fire Models

- Point Source Model - API RP521

- Radiated heat

- Surface Emitter Model

- Chamberlain model

VCE Models

- Empirical Models

- Numerical Models

- TNT Equivalence approach

Q1 (b) If the company had a limited budget for more detailed simulations, how would you prioritise which scenarios to investigate?