Quantified Risk Analysis

Topic Safety

CPD Hours 11.5

Price IChemE member £1080 + VAT, non-member £1296 + VAT


Live online course – starts on 5 August 2021.

Quantified Risk Analysis (QRA) is the numerical combination of severity of consequence with frequency of event.

This online course will help you better understand different types of risk and how they are calculated. You will learn how to select scenarios to be modelled, and how to determine appropriate data as inputs.

The course explores the interpretation of risk results and how QRA can be applied to practical engineering solutions. It includes Occupied Building Risk Assessment and As Low As Reasonably Practicable (ALARP) demonstrations. 

Lectures are supported with practical exercises and discussion. Teaching will be delivered via three modules (approximately 2—3 hours in length each), alongside independent study and pre-recorded video sessions.  

Learning outcomes

By the end of the course delegates will understand:

  • the definitions of risk
  • how to select cases to be modelled
  • how to build a QRA model
  • how to calculate risk and interpret the results.

Who will benefit

  • Managers, supervisors, engineers, safety personnel and others involved in commissioning and reviewing of QRA studies
  • Graduates, chemical and other engineers may find it beneficial in the preparation of the Chartered Member application

Course outline

  • Introduction to risk
  • Definition of scenarios
  • Derivation of event frequencies
  • Calculation methods for risk
  • Occupied Building Risk Assessment
  • ALARP demonstration
  • QRA limitations and best practice

Module dates and times

Module 1

Thursday 5 August 2021, 14:00–17:00 BST

Module 2

Thursday 12 August 2021, 14:00–17:00 BST

Module 3

Thursday 19 August 2021, 14:00–17:00 BST

There will be independent study and pre-recorded video sessions issued before/between modules.

Not available then? Register your interest in future course dates.


  • IChemE member: £1080 + VAT
  • Non-member: £1296 + VAT


Discounts are available to companies booking more than one place:

  • 2 places–10% discount
  • 3 places–15% discount
  • 4 or more places–20% discount.

Bookings must be made at the same time to receive the discount.


Modules will be delivered via Microsoft Teams. If you don't already have this installed, you can join as a guest in order to access the training. We'll share information about how to do this after you've registered.

Please note that delegates will need a Windows-based PC to access the course.

In-company training

This can also be delivered as a virtual in-company course. Contact us for more details.

Helen Fennell


Helen Fennell

Helen Fennell graduated in Chemical Engineering from Loughborough University in 1997. Since then she has had roles across Operations, Design, Commissioning and Process safety, including senior technical authority roles in Process Safety Management. She has worked across diverse industries including utility systems, onshore and offshore oil and gas facilities, reforming, high hazard installations, cryogenics and novel processes.

Helen has a proven track record of delivering engineering solutions to ensure risks on both greenfield and brownfield projects are ALARP against a backdrop of aggressive schedules and regulatory compliance criteria. Project values range from US$20 Billion down to small discrete studies for operating facilities.

In 2014, Helen set up Inherent Safety Consulting Limited to provide specialist process safety services including process safety studies and hazard review chairmanship. She is an experienced hazard review chairman with over 80 hazard reviews chaired, including What-If, HAZID/ENVID, HAZOP, SIL, LOPA, ALARP, SIMOPS and WEHRA.

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