Description: Layer of protection analysis (LOPA) is a new, simplified method of analyzing and assessing acute risks in chemical process safety.
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Chemistry & Chemical Engineering
Safety & Industrial Hygiene
Description:
Layer of protection analysis (LOPA), the new, simplified method of risk assessment for acute process safety risks, provides a middle ground between qualitative process hazard analysis and traditional, expensive quantitative risk analysis. It also provides an excellent approach for determining the safety integrity level necessary for an instrumented safety system, an approach endorsed by instrument standards such as ISA S84 and IEC 61511. Beginning with an identified accident scenario, LOPA uses simplifying rules to evaluate:
* Initiating event frequency * Independent layers of protection * Consequences to provide an order-of-magnitude estimate of risk.
Augmented throughout with extensive tables, charts, and examples, this resource provides the information necessary to undertake and complete a Layer of Protection Analysis during any stage in a process's life cycle.
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STANDARD PUBLISHER DISCLAIMER - Center for Chemical Process Safety/AIChE
It is sincerely hoped that the information presented in this document will lead to an even more impressive safety record for the entire industry; however, the American Institute of Chemical Engineers, its consultants, CCPS Subcommittee members, their employers, their employers' officers and directors, the document's authors, and knovel and knovel Service disclaim making or giving any warranties or representations, express or implied, including with respect to fitness, intended purpose, use or merchantability and/or correctness or accuracy of the content of the information presented in this document. As between (1) American Institute of Chemical Engineers, its consultants, CCPS Subcommittee members, their employers, their employers' officers and directors, the document's authors, and knovel and knovel Service and (2) the user of this document, the user accepts any legal liability or responsibility whatsoever for the consequence of its use or misuse.
STANDARD PUBLISHER DISCLAIMER - Center for Chemical Process Safety/AIChE
It is sincerely hoped that the information presented in this document will lead to an even more impressive safety record for the entire industry; however, the American Institute of Chemical Engineers, its consultants, CCPS Subcommittee members, their employers, their employers' officers and directors, the document's authors, and knovel and knovel Service disclaim making or giving any warranties or representations, express or implied, including with respect to fitness, intended purpose, use or merchantability and/or correctness or accuracy of the content of the information presented in this document. As between (1) American Institute of Chemical Engineers, its consultants, CCPS Subcommittee members, their employers, their employers' officers and directors, the document's authors, and knovel and knovel Service and (2) the user of this document, the user accepts any legal liability or responsibility whatsoever for the consequence of its use or misuse.
Layer of Protection Analysis - Simplified Process Risk Assessment
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