Introduction to layers of protection analysis

Summers, Angela E.

doi:10.1016/s0304-3894(03)00242-5

Cited by 76 publications

(27 citation statements)

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“…Layers of protection analysis (LOPA) has been a powerful analytical tool for safety design and management used widely in the world since 2000 [8]. LOPA builds upon well-known process hazards analysis techniques, applying objective and semi-quantitative measures to the evaluation of the frequency of potential incidents and the probability of failure of the protection layers.…”

Section: What Is Layers Of Protection Analysismentioning

confidence: 99%

Research of Risk Assessment in the Boiler Water Treatment System Based on Layers of Protection Analysis

Li¹,

Jiang²,

Deng³

2014

Proceedings of the 2014 International Conference on Mechatronics, Control and Electronic Engineering

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For the purpose of solving problems in water treatment system of the power station boiler from perspective of chemical process safety, a new method which uses the LOPA method in risk assessment for anticorrosion and scale inhibition properties of boiler system is proposed. First of all, a new annotation on the basic principle and calculation steps of LOPA is made in this paper. And then the consequence of the hazard scenario is determined by calculating the probability of accidents, such as putting poor quality water treated by the water treatment agents as initial event. Finally, specific implementable recommendations are provided by comparing the risk levels of independent protective layers system and ordinary system. The results show that the method that LOPA used in risk assessment for anticorrosion and scale inhibition properties of boiler is feasible, measures that recommended can reduce the risk; LOPA can further enrich HAZOP analysis results when introduced into boiler capacity link; layers of protection analysis, risk assessment together with humanistic management could be a new and effective security management model used by energy enterprise.

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Section: What Is Layers Of Protection Analysismentioning

confidence: 99%

Research of Risk Assessment in the Boiler Water Treatment System Based on Layers of Protection Analysis

Li¹,

Jiang²,

Deng³

2014

Proceedings of the 2014 International Conference on Mechatronics, Control and Electronic Engineering

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show abstract

“…Five years later, she suggested that the features of LOPA offer a powerful, analytical tool for assessing the adequacy of protection layers to mitigate process risk [99]; again, HAZOP was deemed important in developing LOPA. The same point of view was considered in a study published in [100].…”

Section: Assigning a Target Safety Integrity Levelmentioning

confidence: 99%

Hazard and operability (HAZOP) analysis. A literature review

Dunjó

Fthenakis

Vı́lchez

et al. 2010

Journal of Hazardous Materials

353

142

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“…Layer of protection analysis [9][10][11], is a semi-quantitative approach to evaluate the risk of potential incidents and to provide guidance on the adequacy of independent protection layers (IPLs) to lower risk. A LOPA typically uses order of magnitude categories for initiating event frequencies and for the probabilities of failure of IPLs, which can mitigate the frequency or reduce the consequence of an incident [10].…”

Section: Risk Assessmentmentioning

confidence: 99%