eprintid: 10189669
rev_number: 14
eprint_status: archive
userid: 699
dir: disk0/10/18/96/69
datestamp: 2024-03-25 10:05:55
lastmod: 2024-08-02 12:59:10
status_changed: 2024-03-25 10:05:55
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Yi, Jiahuan
creators_name: Mahgerefteh, Haroun
creators_name: Porter, Richard
title: A probabilistic approach to optimal emergency shutdown valve configuration for pressurised pipelines
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F43
keywords: Emergency shutdown valves; Valve optimisation; Pressurised CO2 pipelines; Multi-objective optimisation; Quantitative risk assessment
note: This version is the author-accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: A multi-objective optimisation technique for selecting the optimal number of in-line Emergency Shutdown Valves (ESDVs) for pressurised CO2 pipelines by balancing risk, treated as a probabilistic variable, against valve cost is presented. Starting with modelling the uncertainties in pipeline characteristics and operating conditions using standard Probability Density Functions (PDFs), a Monte Carlo simulation involving the random sampling from these PDFs is performed to obtain the probability distribution of the risk associated with pipeline failure. Based on the obtained probability distribution, mapping the risk in the space of the objective functions provides a probabilistic solution plane for determining the optimal number of ESDVs. The efficacy of the proposed technique is demonstrated via comparative research where the risk is treated deterministically as the worst-case scenario. The findings reveal that more probabilistically cost-effective risk mitigation solutions can be attained when the risks associated with possible failure scenarios are assessed during the risk mitigation planning process, rather than employing a pre-determined expected risk value before the planning phase, as the well-established practice. This highlights the importance of the uncertainties in pipeline characteristics and operating conditions in helping decision makers configure in-line ESDVs effectively in CO2 pipelines.
date: 2024-08-10
date_type: published
publisher: Elsevier
official_url: https://doi.org/10.1016/j.jclepro.2024.142915
full_text_type: other
language: eng
verified: verified_manual
elements_id: 2134146
doi: 10.1016/j.jclepro.2024.142915
lyricists_name: Porter, Richard
lyricists_name: Mahgerefteh, Haroun
lyricists_id: RTJPO82
lyricists_id: HMAHG74
actors_name: Mahgerefteh, Haroun
actors_id: HMAHG74
actors_role: owner
funding_acknowledgements: 884418 [EU Horizon 2020]
full_text_status: restricted
publication: Journal of Cleaner Production
volume: 466
article_number: 142915
issn: 0959-6526
citation:        Yi, Jiahuan;    Mahgerefteh, Haroun;    Porter, Richard;      (2024)    A probabilistic approach to optimal emergency shutdown valve configuration for pressurised pipelines.                   Journal of Cleaner Production , 466     , Article 142915.  10.1016/j.jclepro.2024.142915 <https://doi.org/10.1016/j.jclepro.2024.142915>.      
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10189669/2/Mahgerefteh_probabilistic%20approach%20to%20optimal%20emergency_AAM.pdf