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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier Ltd
2019
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| Online Access: | http://umpir.ump.edu.my/id/eprint/22481/ http://umpir.ump.edu.my/id/eprint/22481/7/Assessment%20of%20chlorine%20leak%20dispersion%20around%20Gebeng%20industrial1.pdf |
| _version_ | 1848821606330138624 |
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| 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 |
| building | UMP Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T02:28:01Z |
| format | Article |
| id | ump-22481 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T02:28:01Z |
| publishDate | 2019 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-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. (Published) https://doi.org/10.1016/j.atmosres.2018.10.003 10.1016/j.atmosres.2018.10.003 |
| 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 |
| title | 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_short | 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 |
| topic | TD Environmental technology. Sanitary engineering TP Chemical technology |
| 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/22481/7/Assessment%20of%20chlorine%20leak%20dispersion%20around%20Gebeng%20industrial1.pdf |