Process route index (PRI) to assess level of explosiveness for inherent safety quantification

Leong, Chan T.; Shariff, Azmi Mohd

doi:10.1016/j.jlp.2008.12.008

Cited by 95 publications

(51 citation statements)

References 9 publications

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“…All these techniques share the manual data collection limitation in addition to dealing with individual chemicals. These limitations have been solved via the integrated risk estimation tool (iRET), which has been coupled with various accident scenarios …”

Section: Introductionmentioning

confidence: 99%

“…Among these, the size of the equipment at preliminary design stage can be represented via the inventory of that process equipment. Furthermore, the process route index (PRI) is underutilizing the process aspects for process routes comparison . Therefore, an enhanced indexing method namely extended process route index (EPRI) is proposed in this article.…”

Section: Introductionmentioning

confidence: 99%

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Equipment‐based route index of inherent safety

Athar

Shariff

Buang

et al. 2019

Process Safety Progress

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Process safety concept is used to deal with accident scenarios occurring as a result of loss containment. There are four tactics of process safety, and due to superior characteristics, the inherent theme is given priority at the preliminary design stage. In open literature, various methods have been proposed to identify the inherent safety level, and among these indexing methods are typically used. The reported indices have a shortcoming that these have not considered equipment characteristics for inherent safety assessment. Therefore, a new indexing method is proposed in this article to improve the quantification of inherent safety level. This index incorporates process, chemical, and equipment aspects to define the safety level of various process routes via the relative ranking. The proposed index has been tested on process routes to produce methyl methacrylate, which confirms the applicability of this index. The index would enable the practitioners to thoroughly analyze and compare the process routes to identify the inherently safer route.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Equipment‐based route index of inherent safety

Athar

Shariff

Buang

et al. 2019

Process Safety Progress

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“…Another consequence-based tool has been proposed by Tugnoli et al [6] to assess the inherent safety of process alternatives using the concept of key performance indicators. Other tools such as the integrated risk estimation tool (iRET) by Shariff et al [7], Inherent Safety Index Module (ISIM) by Leong and Shariff [8] and Process Route Index (PRI) by Leong and Shariff [9] were developed to evaluate process design alternatives on potential impact from consequences of vapour cloud explosion through the integration of process design simulator with enhanced ISI. The integration efforts in these tools are developed to ease design modifications at an early stage of the design.…”

Section: Introductionmentioning

confidence: 99%

Evaluating inherently safer design alternatives using hazard conflict approach

Rusli

Shariff

2011

Management of Natural Resources, Sustainable Development and Ecological Hazards III

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The application of Inherent Safety (IS) principles and Inherently Safer Design (ISD) concept has been proven to reduce the risk of accidents and is economically attractive for chemical process plants. However, they also suffer from several trade-offs or conflicts that arise from the modification suggested by the concept. A design which is identified to be inherently safer from one hazard could possibly alter the magnitude of other hazards, which were previously not at a critical level. Therefore, an IS tool should emphasise this limitation before a decision can be made, in order to obtain the best ISD alternatives. This paper presents a likelihood tool to evaluate the potential hazard conflicts in ISD alternatives at preliminary design stage. The tool is part of a framework which is developed based on risk approach. The proposed tool is applied to hydrogen storage systems with the objective to prevent and minimise potential fire and explosion. The results have shown that the new tool is able to highlight the potential new hazards and variation of magnitude of existing hazards which emerged when the hydrogen storage is changed according to the ISD concept at preliminary design stage.

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“…In term of cost, any re-design done after the detailed design of the process life cycle would be very expensive compared to alteration in the early stage i.e. during conceptual design stage [13]. Overton and King of Dow Chemical Company [14] prove several examples on the application of inherently safer design concept that result in lower capital cost and produced lower operating costs, greater reliability and faster start times for a new and existing plant.…”

Section: Introductionmentioning

confidence: 99%

“…IRA follows closely with the commonly used technique of quantitative risk assessment (QRA). Detail explanation of PRI and IRA are given by Leong and Shariff [13,35].…”

Section: Introductionmentioning

confidence: 99%