eprintid: 3042 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/30/42 datestamp: 2023-11-09 15:51:18 lastmod: 2023-11-09 15:51:18 status_changed: 2023-11-09 15:44:51 type: article metadata_visibility: show creators_name: Shariff, A.M. creators_name: Leong, C.T. creators_name: Zaini, D. title: Using process stream index (PSI) to assess inherent safety level during preliminary design stage ispublished: pub keywords: Acrylic acids; Design engineers; Enhancement techniques; Explosion hazards; Individual components; Inherent safety; Inherent safety index; Natural gas liquid plants; Preliminary design; Process streams; Safety assessments; Streams index, Carboxylic acids; Chemical plants; Conceptual design; Explosives; Hazards; Rating, Explosions, article; chemical industry; explosion; occupational safety; priority journal; process design; process stream index; risk assessment; risk reduction; simulation note: cited By 89 abstract: In the current practice, safety assessment is conducted once the process design has been completed. At this stage of design, the freedom to change the conceptual design is very limited and whatever strategies to be implemented will only control the hazard. This paper reports on the development of inherent safety index known as a process stream index (PSI) for inherent safety level assessment at preliminary design stage from the perspective of an explosion. The aim for PSI is to calculate, compare and prioritize the level of inherent safety of process streams during simulation work that influences the explosion. By prioritizing the streams based on the potential for the explosion, the design engineers can easily identify the critical streams to be considered for improvement in order to avoid or minimize explosion hazards. An enhancement technique to reflect the contribution of the individual components in the mixture is introduced, which provide significant contribution to the ranking of inherent safety level of process streams. The assessment of inherent safety level using PSI is demonstrated by case studies of HYSYS simulation for Acrylic Acid Plant and Natural Gas Liquid (NGL) plant. © 2011 Elsevier Ltd. date: 2012 official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84856424397&doi=10.1016%2fj.ssci.2011.11.015&partnerID=40&md5=62796842a18b1a01f44f0f3edd5fcec5 id_number: 10.1016/j.ssci.2011.11.015 full_text_status: none publication: Safety Science volume: 50 number: 4 pagerange: 1098-1103 refereed: TRUE issn: 09257535 citation: Shariff, A.M. and Leong, C.T. and Zaini, D. (2012) Using process stream index (PSI) to assess inherent safety level during preliminary design stage. Safety Science, 50 (4). pp. 1098-1103. ISSN 09257535