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Hazard & Operability (HAZOP) studies comprise the first part of the IEC 61511 Lifecycle, which is titled the Process Hazard & Risk Assessment (PHRA) phase.

During a HAZOP study, the hazards in the process plant are identified by a team of experienced multi-discipline engineers, who follow a recognized framework of 'Guide Words'.

The HAZOP procedure relies on a good chair supported by the expertise of the engineers, who should possess experience of design, operation and maintenance activities.

During the HAZOP, if inherent risks are identified as high, the design of the process system should be revisited so as to establish if the risk can be reduced, or preferably removed.

The task of any process design team should be to design and build inherently safe systems, however, this is generally not always possible, but the design should aim to keep the risk as low as reasonably possible.

Here at Whorlton, we have attended many HAZOP both nationally and internationally, providing Functional Safety, Control and Instrumentation expertise, comprising theoretical and practical knowledge gained from many years of design, build, test, installation and commissioning.

If you would like more information on how Whorlton can help your company with HAZOP please contact us.

latest case study

Latest Case Study

Chemical Facility - Hardwired Safety Instrumented System (SIS) Upgrade

This was an extremely interesting and challenging project, involving detailed planning, site surveys, design, build, test, commissioning, with close liaison with operations on a live facility, with limited process shutdown windows.

Read more

Whorlton Functional Safety Engineering Ltd are ISO 9001 Registered, Certificate No. 14129233

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