Consequence Modelling
Precise modelling of how a release behaves — and how far its effects reach.
Dispersion, fire, explosion and toxic release modelling using validated software to quantify physical effect zones.
Request a ConsultationWhat is Consequence Modelling?
Consequence Modelling is the quantitative simulation of the physical effects of a loss-of-containment event — gas/vapour dispersion, pool fires, jet fires, flash fires, vapour cloud explosions (VCE), and BLEVEs — to determine hazard footprint distances such as toxic dose contours, thermal radiation contours, and explosion overpressure contours.
Why It Matters
- ●Underpins QRA, HAZID siting decisions, and emergency response planning distances
- ●Validates whether existing separation distances and mitigation systems are adequate
- ●Required input for fire and explosion risk assessments and ERDMP
- ●Supports plant layout optimisation and inherently safer design reviews
Our Methodology
- 1Source term modelling — release rate, duration, phase (gas/liquid/two-phase)
- 2Dispersion modelling under range of atmospheric stability and wind speed conditions
- 3Fire and explosion modelling for ignited release scenarios
- 4Hazard footprint mapping for toxic, thermal and overpressure end-points
- 5Sensitivity analysis across weather categories and mitigation credits
Deliverables
Industries We Serve
FAQ
Consequence Modelling Frequently Asked Questions
What is consequence modelling?
Consequence modelling is the quantitative simulation of physical effects — dispersion, fire, and explosion — resulting from a loss-of-containment event, producing hazard footprint distances used in QRA, siting, and emergency planning.
What software is used for consequence modelling?
Industry-standard tools include PHAST, ALOHA, SLAB, DEGADIS, and EFFECTS, selected based on release type (continuous/instantaneous, light/heavy gas) and scenario (jet fire, pool fire, VCE, toxic dispersion).
What is a source term in consequence modelling?
The source term defines the rate, duration, phase and physical state of material released from a loss-of-containment event — it is the critical input that determines the accuracy of all downstream dispersion and fire/explosion modelling.