Safety and reliability

The management of major accident hazards can only be effective if the hazards are identified, their likelihood and consequences fully assessed and understood and hazard management measures implemented, that are effective in performing their required role.

Our safety engineering team has expertise in all areas of hazard management from the preparation of design philosophies, at all stages of a project, through to the quantification of risk using quantitative risk analysis techniques.

Complying with today’s legislation can involve adherence to many engineering codes, national and international standards and codes of practice. We can prepare all the necessary regulatory documentation for a project and act as the interface between appointed bodies. Our capabilities also include chairing HAZID & HAZOP sessions through to preparation and submission of Safety Cases.

Reliability Modelling

Our reliability and availability modelling capability includes analysis of safety instrumented systems and dynamic simulation of plant.

The safety life cycle of safety instrumented systems commences with the specification of the performance requirements (Safety Integrity Level) using SIL assessments and Layer of Protection Analysis (LOPA) techniques. The life cycle continues with reliability & availability analysis to demonstrate the required safety integrity levels, as defined in BS EN 61511, can be met over the life cycle of the SIS.

We can provide a variety of expertise in the field of reliability analysis to ensure that the hardware safety integrity requirements, as defined in BS EN 61511, are achieved for any Safety Instrumented System. The analysis includes:

• SIL Assessments
• Failure Modes, Effects and Criticality Analysis
• Common Cause Failure Analysis
• Reliability Block Diagrams
• Fault Tree and Event Tree Analysis
• Hardware Fault Tolerance Analysis

We also have the capability to perform dynamic Availability/Reliability simulation modelling which evaluates the operational performance of facilities in terms of production efficiency, product generation, manning profiles and throughput. Our simulation tools include:

• MAROS
• AvSim
• BockSim 7