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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/22481/7/Assessment%20of%20chlorine%20leak%20dispersion%20around%20Gebeng%20industrial1.pdf
http://umpir.ump.edu.my/id/eprint/22481/
https://doi.org/10.1016/j.atmosres.2018.10.003
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spelling my.ump.umpir.224812020-07-16T07:21:57Z 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/22481/7/Assessment%20of%20chlorine%20leak%20dispersion%20around%20Gebeng%20industrial1.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
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
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/22481/7/Assessment%20of%20chlorine%20leak%20dispersion%20around%20Gebeng%20industrial1.pdf
http://umpir.ump.edu.my/id/eprint/22481/
https://doi.org/10.1016/j.atmosres.2018.10.003
_version_ 1674066374052282368
score 13.211869

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