eprintid: 1410
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/14/10
datestamp: 2023-11-09 15:49:34
lastmod: 2023-11-09 15:49:34
status_changed: 2023-11-09 15:40:09
type: article
metadata_visibility: show
creators_name: Rusli, R.
creators_name: Mohd Shariff, A.
title: Qualitative Assessment for Inherently Safer Design (QAISD) at preliminary design stage
ispublished: pub
keywords: Active safety systems; As low as reasonably practicable; Common process; Hazard and operabilities; Hazard evaluation; Inherent safety; Inherently safer; Inherently safer design; Possible solutions; Potential hazards; Potential incidents; Preliminary design; Proactive measures; Process plants; Qualitative assessments; Qualitative methodologies; Risk reduction strategies; Risk reductions; Safety database; Theory of inventive problem solving; Thermal runaways; User experience, Batch reactors; Design; Nitration; Risk analysis; Risk assessment; Security systems; Toluene, Hazards
note: cited By 37
abstract: Conventional hazard evaluation techniques such as what-if checklist and hazard and operability (HAZOP) studies are often used to recognise potential hazards and recommend possible solutions. They are used to reduce any potential incidents in the process plant to as low as reasonably practicable (ALARP) level. Nevertheless, the suggested risk reduction alternatives merely focus on added passive and active safety systems rather than preventing or minimising the inherent hazards at source through application of inherently safer design (ISD) concept. One of the attributed reasons could be the shortage of techniques or tools to support implementation of the concept. Thus, this paper proposes a qualitative methodology that integrates ISD concept with hazard review technique to identify inherent hazards and generate ISD options at early stage of design as proactive measures to produce inherently safer plant. A modified theory of inventive problem solving (TRIZ) hazard review method is used in this work to identify inherent hazards, whereby an extended inherent safety heuristics tool is developed based on established ISD principles to create potential ISD options. The developed method namely Qualitative Assessment for Inherently Safer Design (QAISD) could be applied during preliminary design stage and the information required to apply the method would be based on common process and safety database of the studied process. However, user experiences and understanding of inherent safety concept are crucial for effective utilisation of the QAISD. This qualitative methodology is applied to a typical batch reactor of toluene nitration as a case study. The results show several ISD strategies that could be considered at early stage of design in order to prevent and minimise the potential of thermal runaway in the nitration process. © 2009 Elsevier Ltd. All rights reserved.
date: 2010
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-76449110182&doi=10.1016%2fj.jlp.2009.07.005&partnerID=40&md5=7b3ff4214e0187b23bcb7dd671bd14b2
id_number: 10.1016/j.jlp.2009.07.005
full_text_status: none
publication: Journal of Loss Prevention in the Process Industries
volume: 23
number: 1
pagerange: 157-165
refereed: TRUE
issn: 09504230
citation:   Rusli, R. and Mohd Shariff, A.  (2010) Qualitative Assessment for Inherently Safer Design (QAISD) at preliminary design stage.  Journal of Loss Prevention in the Process Industries, 23 (1).  pp. 157-165.  ISSN 09504230