eprintid: 19709
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/97/09
datestamp: 2024-06-04 14:19:26
lastmod: 2024-06-04 14:19:26
status_changed: 2024-06-04 14:15:39
type: article
metadata_visibility: show
creators_name: Malik, A.A.
creators_name: Rusli, R.
creators_name: Nazir, S.
creators_name: Wong, R.H.
creators_name: Arshad, U.
title: Grid-based assessment of hydrogen leakages for an offshore process to improve the design and human performance
ispublished: pub
keywords: Dispersions; Explosions; Hydrogen production; Offshore oil well production; Risk assessment; Steam reforming; Wind, Design performance; Dispersion characteristics; Fire dynamics simulator; Grid-based; Human performance; Hydrogen leakage; Leakage; Monitor points; Offshores; Wind speed, Computational fluid dynamics
note: cited By 0
abstract: Hydrogen is gaining global recognition as a sustainable energy source, but its combustible nature raises concerns, especially in congested offshore settings. Steam methane reforming (SMR) remains the predominant hydrogen production method; however, offshore SMR facilities exposed to harsh weather could potentially compromise safety because of leakages. This study uses the fire dynamics simulator (FDS) to carry out the first-of-its-kind CFD modeling of hydrogen leakage and its wind-influenced dispersion on an offshore SMR platform. It also provides the spatial risk that accounts for the probabilities of human errors and wind speeds. The study uses a grid-based approach with 120 monitor points (MPs) to measure locally dispersed gas concentration. At 2 m/s wind speed, only nine grids contain explosive concentrations while the rest remain safe. At 5 m/s, the flammable zones increase by 133, affecting 21 grids. Extreme wind speeds of 12.5 m/s have limited impact, but SMR1 exhibits higher stoichiometric concentrations. MPs 43�48 record flammable concentrations at all wind speeds; however, at 12.5 m/s the explosion risk is well below the threshold of 1 � 10�4 due to the low wind occurrence probability. Overall, this research contributes to addressing the safety concerns associated with hydrogen in offshore settings and provides a foundation for future risk assessments. © 2024 American Institute of Chemical Engineers.
date: 2024
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85181677694&doi=10.1002%2fprs.12567&partnerID=40&md5=1d4f662607159272243e58577f97b77c
id_number: 10.1002/prs.12567
full_text_status: none
publication: Process Safety Progress
volume: 43
number: S1
pagerange: S35-S49
refereed: TRUE
citation:   Malik, A.A. and Rusli, R. and Nazir, S. and Wong, R.H. and Arshad, U.  (2024) Grid-based assessment of hydrogen leakages for an offshore process to improve the design and human performance.  Process Safety Progress, 43 (S1).  S35-S49.