Assessment of chlorine leak dispersion around Gebeng industrial area and potential evacuation route

This paper evaluates the effect of topographical and wind condition on the dispersion of chlorine leaks around Gebeng industrial area Malaysia using a computational fluid dynamics (CFD). The actual data on wind speed and direction was obtained from a local weather station. The turbulent flow was res...

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Main Authors:	Law, Woon Phui, Norliyana, Erain, Noram Irwan, Ramli, Jolius, Gimbun
Format:	Article
Language:	English
Published:	Elsevier Ltd 2019
Subjects:	TD Environmental technology. Sanitary engineering TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/22481/ http://umpir.ump.edu.my/id/eprint/22481/ http://umpir.ump.edu.my/id/eprint/22481/ http://umpir.ump.edu.my/id/eprint/22481/1/Law%202019.pdf

id	ump-22481
recordtype	eprints
spelling	ump-224812019-10-03T08:07:31Z http://umpir.ump.edu.my/id/eprint/22481/ Assessment of chlorine leak dispersion around Gebeng industrial area and potential evacuation route Law, Woon Phui Norliyana, Erain Noram Irwan, Ramli Jolius, Gimbun TD Environmental technology. Sanitary engineering TP Chemical technology This paper evaluates the effect of topographical and wind condition on the dispersion of chlorine leaks around Gebeng industrial area Malaysia using a computational fluid dynamics (CFD). The actual data on wind speed and direction was obtained from a local weather station. The turbulent flow was resolved using a scale-adaptive simulation (SAS) model, whereas the chlorine dispersion was modelled using the species transport equation and compared with the area location of hazardous atmosphere (ALOHA) model. The simulation was compared with the laser doppler anemometry (LDA) measurement on a scaled-down terrain model. A good agreement between the CFD prediction and LDA measurement was obtained. The finding showed that the terrain surface, wind direction and wind speed have a combined effect on the dispersion of chlorine. Residential areas R1 and R2 are affected by the chlorine leak during June to September and November to January, respectively. The plume reached the residential area rapidly under the wind speed above 7.2 m/s but the hazard zone is reduced about 50. CFD prediction agrees with that of ALOHA in the case of flat terrain, whereas CFD provide a better prediction for the case involving complex terrain. The finding in this work may provide a useful guide to estimate the risk zone from a hypothetical chlorine leak which can be used to plan the safety evacuation procedure. Elsevier Ltd 2019 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/22481/1/Law%202019.pdf Law, Woon Phui and Norliyana, Erain and Noram Irwan, Ramli and Jolius, Gimbun (2019) Assessment of chlorine leak dispersion around Gebeng industrial area and potential evacuation route. Atmospheric Research, 216. pp. 117-129. ISSN 0169-8095 https://doi.org/10.1016/j.atmosres.2018.10.003 10.1016/j.atmosres.2018.10.003
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TD Environmental technology. Sanitary engineering TP Chemical technology
spellingShingle	TD Environmental technology. Sanitary engineering TP Chemical technology Law, Woon Phui Norliyana, Erain Noram Irwan, Ramli Jolius, Gimbun Assessment of chlorine leak dispersion around Gebeng industrial area and potential evacuation route
description	This paper evaluates the effect of topographical and wind condition on the dispersion of chlorine leaks around Gebeng industrial area Malaysia using a computational fluid dynamics (CFD). The actual data on wind speed and direction was obtained from a local weather station. The turbulent flow was resolved using a scale-adaptive simulation (SAS) model, whereas the chlorine dispersion was modelled using the species transport equation and compared with the area location of hazardous atmosphere (ALOHA) model. The simulation was compared with the laser doppler anemometry (LDA) measurement on a scaled-down terrain model. A good agreement between the CFD prediction and LDA measurement was obtained. The finding showed that the terrain surface, wind direction and wind speed have a combined effect on the dispersion of chlorine. Residential areas R1 and R2 are affected by the chlorine leak during June to September and November to January, respectively. The plume reached the residential area rapidly under the wind speed above 7.2 m/s but the hazard zone is reduced about 50. CFD prediction agrees with that of ALOHA in the case of flat terrain, whereas CFD provide a better prediction for the case involving complex terrain. The finding in this work may provide a useful guide to estimate the risk zone from a hypothetical chlorine leak which can be used to plan the safety evacuation procedure.
format	Article
author	Law, Woon Phui Norliyana, Erain Noram Irwan, Ramli Jolius, Gimbun
author_facet	Law, Woon Phui Norliyana, Erain Noram Irwan, Ramli Jolius, Gimbun
author_sort	Law, Woon Phui
title	Assessment of chlorine leak dispersion around Gebeng industrial area and potential evacuation route
title_short	Assessment of chlorine leak dispersion around Gebeng industrial area and potential evacuation route
title_full	Assessment of chlorine leak dispersion around Gebeng industrial area and potential evacuation route
title_fullStr	Assessment of chlorine leak dispersion around Gebeng industrial area and potential evacuation route
title_full_unstemmed	Assessment of chlorine leak dispersion around Gebeng industrial area and potential evacuation route
title_sort	assessment of chlorine leak dispersion around gebeng industrial area and potential evacuation route
publisher	Elsevier Ltd
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/22481/ http://umpir.ump.edu.my/id/eprint/22481/ http://umpir.ump.edu.my/id/eprint/22481/ http://umpir.ump.edu.my/id/eprint/22481/1/Law%202019.pdf
first_indexed	2023-09-18T22:33:29Z
last_indexed	2023-09-18T22:33:29Z
_version_	1777416441279021056

Assessment of chlorine leak dispersion around Gebeng industrial area and potential evacuation route

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