Consequence Modelling Techniques

Location Brisbane, Australia

Date 24th November 2020

Duration 3 days

Topic Safety

CPD Hours 18

Price IChemE member $3,000 (inc GST), non-member $3,400 (inc GST)


This course is also being delivered online – view details >>

Consequence modelling is used to predict accident effects and impact on people, the environment and property. The course draws upon loss-of-containment scenarios and guides you through a range of models, using workshops and case studies, to demonstrate different approaches to consequence modelling.

The course includes exercises on scenario definition, selection of input parameters, simple modelling and interpretation of results.

Note: delegates will need a Windows laptop, if this is a problem please let us know.

What you will learn

By the end of the course delegates will understand:

  • how to identify a set of major accident scenarios on a facility handling hazardous materials
  • which types of models available for different scenarios and which are appropriate at different stages of plant design or operation
  • the limitations of the various model types
  • how to define the possible outcomes of hazardous material release e.g fire, explosions and toxic effects
  • the requirements for modelling these hazards
  • the possible impact of hazards on people, the environment and property 
  • the importance of defining source terms (initial conditions), including uncertainty
  • how to specify a range of hazard studies and interpret the output
  • how to interpret model results and how they are used in quantified risk analysis
  • regulatory requirements for consequence modelling.

Who will benefit

  • Project and plant managers
  • Safety managers responsible for preparing safety reports and interpreting modelling results
  • Professionals using consequence models and/or their results and want further guidance on the bases, validity and uses of modelling
  • Those new to the field of process safety
  • Anyone would needs to understand the potential scale of accidents and the consequences

Course outline

  • Basic concepts and definitions
  • Consequences for modelling 
  • What is a model and when are they needed
  • Source terms and consequences for liquid vessels and pipes, gas vessels and pipes, flashing liquids, two phase vessels and pipes, and time dependency
  • Basic hazard identification methods
  • Dispersion models — passive/lighter than air, momentum jet, heavy gas and CFD techniques
  • Transition from source model to dispersion model
  • Interpretation of dispersion model results
  • Explosion modelling —  VCE, confined, semi-confined, vessel burst and dust explosions
  • Fire modelling — pool, jet, fireballs and assumptions
  • Application of results - inputs to risk analysis, QRA, LOPA , emergency response plans, escape and evacuation


Discounts are available to companies booking more than one place:

  • 2 places — 5% discount
  • 3 places — 10% discount
  • 4 or more places — 15% discount.

In-company training

This course is also available as an in-company course (face-to-face or online) where content can be customised to meet your organisation's specific needs and delivered on a date/location that suits your requirements. Contact us for more information.

Register your interest

Register your interest in this course to receive latest updates >>

Contact Phone +61 (03) 9642 4494

Contact Email

Book course
Giles Peach, MIChemE


Giles Peach, MIChemE

Sherpa Consulting

Giles is a Professional Process Safety Engineer, Chartered Engineer, MIChemE and MIMechE. Starting with Mobil Oil in 1986, he has over 30 years’ experience in the oil and gas and high hazard industry working with operators, consultancies and engineering contractors.

He has worked on numerous projects including being responsible for Safety Case developments from the UK North Sea to onshore Major Hazard Facilities in Australia. He was the lead risk and safety engineer for onshore and offshore detailed design projects in SE Asia and Australia. As an active consultant he is involved in process safety on a daily basis.

Back to courses