Preliminary Hazard Review during Conceptual Design

3 Preliminary Hazard Review during Conceptual Design 

Preliminary hazard review is intended to evaluate major hazards at the early stages of technology development and/or proposal development and project planning. Inherently safer design, high risk process elimination, appropriate safeguards and the need for further studies are identified at this stage. This would help the project team to understand major on- and off-site risks and the kind of domino effects from events, which may impact the environment and corporate reputation. 

Fire - Pool Fire Fire - Flash Fire 

Explosion - BLEVE (Boiling liquid expanding vapour explosion) 

Occurs when a liquid from a spill accumulates on the ground in sufficient quantity to sustain a fire if ignition occurs Occurs when volatile components of a flammable release form a vapour cloud in air. When this cloud is ignited, often some distance from the release location, a flame front travels through the flammable mixture and then stabilizes at the release point as a pool fire 

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An early or initial screening study for the identification, qualitative review, and ranking of process hazards, typically conducted during an initial evaluation of existing facilities or a project s conceptual design. Recommendations for the mitigation of identified hazards are provided. See also Preliminary Risk Analysis Process Hazard Analysis (PHA). 

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