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Evaluating inherently safer design alternatives using hazard conflict approach

Rusli, Risza and SHARIFF, A. M (2011) Evaluating inherently safer design alternatives using hazard conflict approach. Evaluating Inherently Safer Design Alternatives Using Hazard Conflict Approach, 148 . pp. 539-550. ISSN 1743-3541

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Abstract

The application of Inherent Safety (IS) principles and Inherently Safer Design(ISD) concept has been proven to reduce the risk of accidents and iseconomically 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.

Item Type:Article
Subjects:Q Science > QD Chemistry
Departments / MOR / COE:Mission Oriented Research > CO2 Management
ID Code:7612
Deposited By: Prof Dr Azmi Mohd Shariff
Deposited On:07 May 2012 04:54
Last Modified:19 Jan 2017 08:23

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