SERVICES
Hazard and Operability Analysis (HAZOP)
What is a HAZOP Study?
Hazard and Operability (HAZOP) is the most widely used Process Hazard Analysis (PHA) technique. It provides a way of systematically identifying causes of deviations from a process design intention, which in turn reveals potential hazardous scenarios and allows understanding of them and how to prevent them from occurring. HAZOP studies are performed as multi-disciplinary brainstorming workshops.
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Why perform HAZOP
Do you need a structured and detailed review of your process design to identify and manage process-related hazards? Then HAZOP is the optimal hazard analysis methodology.
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HAZOP studies are performed to:
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Methodically examine processes and operating systems to identify how they might deviate from the design intent;
Prevent process-related accidents and incidents by evaluating process design with regards to safety (of people, the environment, or assets) and operability;
Identify deviations from related standards and project requirements;
Identify requirements for additional risk-reduction
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HAZOP studies are also great tools for the team to gain a higher understanding of the process and the available process safety documentation.
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HAZOP Study Methodology
HAZOP studies are conducted as structured and multi-disciplinary brainstorming workshops to identify process-related hazards and operability issues, evaluate their consequences, and assess whether adequate safeguards are in place to prevent or control these hazardous scenarios.
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The HAZOP technique is based on the systematic use of process deviations composed of a combination of guidewords and process parameters. Examples of HAZOP study guidewords, parameters, and the corresponding deviations are shown below:
Benefits of a HAZOP Study:
The structured nature of the analysis ensures that hazards and operability concerns are identified and recorded in a thorough and systematic way. By applying guidewords meant for brainstorming the methodology allows for a consistent approach and ensures that all relevant aspects are considered and discussed. A well-conducted HAZOP serves as a robust foundation for further analyses and decision-making, including being the foundational block for Functional Safety.
ORS Consulting has extensive experience with facilitating and recording HAZOP studies. Our principal consultants have extensive HAZOP experience for a wide variety of industrial applications. ORS combines technical knowledge and process know-how with experience and up-to-date competence related to relevant regulations and best practices (such as IEC 61882).
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