Computational fluid dynamics study of air pollutant dispersion around Kuantan

Air pollutant like the chlorine is harmful to living things, environment and building structures when it accumulates in the air in sufficiently high concentration. Exposure to chlorine gas can cause acute or chronic effects depending on its concentration. In Malaysia, Gebeng industrial area is one o...

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Main Author:	Norliyana, Erain
Format:	Thesis
Language:	English
Published:	2019
Subjects:	TD Environmental technology Sanitary engineering
Online Access:	http://umpir.ump.edu.my/id/eprint/30031/1/Computational%20fluid%20dynamics%20study%20of%20air%20pollutant%20dispersion%20around%20Kuantan.wm.pdf
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spelling	my-ump-ir.300312023-05-23T04:53:26Z Computational fluid dynamics study of air pollutant dispersion around Kuantan 2019-08 Norliyana, Erain TD Environmental technology. Sanitary engineering Air pollutant like the chlorine is harmful to living things, environment and building structures when it accumulates in the air in sufficiently high concentration. Exposure to chlorine gas can cause acute or chronic effects depending on its concentration. In Malaysia, Gebeng industrial area is one of the largest industrial area that consists of various processing plant such as petrochemical and polymer plant where the chlorine is commonly used in the petrochemical and polymer plants such as Polyplastics Asia Pacific, Lynas, Petronas-MTBE and Kaneka Malaysia. So, there are high potential to accidental release of chlorine in the selected area thus as the main reason on choosing the chlorine as pollutant. Air pollutant dispersion is significantly affected by the meteorological and topographical conditions. The field experiment measurement has the limitations to provide detail information of air flow on complex terrain and hence computational fluid dynamics (CFD) techniques is applied to provide the comprehensive information on the species transport and turbulence simultaneously. To ensure the accuracy of the air flow on CFD model, it must be validated before it routinely used. So, one of the objectives for this study is to model the wind flows past a scaled-down model using particle image velocimetry (PIV) measurement and compare with the CFD simulation. To achieve this objective, parameter such as wind speeds and directions was collected and will be used to obtain the results by using CFD as a simulation tools. The typical eastern wind with wind speed 1.78 m/s is used. The turbulence flow was modelled using scale-adaptive simulation (SAS) turbulence model. The model was validated with the PIV measurement on the scale down topography model. The CFD prediction showed good agreement with the error ranging 1.5 to 2.6% from the PIV measurement. Hence, the model can be used to evaluate the combine effect of surface terrain, wind direction and speed on the pollution dispersion around Gebeng industrial area. It was found that the residential area R1 (Kampung Baru Gebeng, Tanjung Rhu, Kampung Sungai Ular, Kampung Darat Sungai Ular and Kampung Baging) and R2 (Kampung Selamat, Kampung Berahi, Kampung Balok, Kampung Seberang Balok Kampung Balok Baru and Kampung Balok Perdana) are affected when the chlorine leakage occurs during June to September and November to January, respectively. Accidental release of this chlorine gas may have led to the emergencies. Hence, it is also important to develop a suitable safety evacuation plan in the event accidental chlorine leak. Suitable safety evacuation route and points is proposed for the case when the residential area R1 and R2 are affected. 2019-08 Thesis http://umpir.ump.edu.my/id/eprint/30031/ http://umpir.ump.edu.my/id/eprint/30031/1/Computational%20fluid%20dynamics%20study%20of%20air%20pollutant%20dispersion%20around%20Kuantan.wm.pdf pdf en public masters Universiti Malaysia Pahang Faculty of Chemical and Natural Resources Engineering Gimbun, Jolius
institution	Universiti Malaysia Pahang Al-Sultan Abdullah
collection	UMPSA Institutional Repository
language	English
advisor	Gimbun, Jolius
topic	TD Environmental technology Sanitary engineering
spellingShingle	TD Environmental technology Sanitary engineering Norliyana, Erain Computational fluid dynamics study of air pollutant dispersion around Kuantan
description	Air pollutant like the chlorine is harmful to living things, environment and building structures when it accumulates in the air in sufficiently high concentration. Exposure to chlorine gas can cause acute or chronic effects depending on its concentration. In Malaysia, Gebeng industrial area is one of the largest industrial area that consists of various processing plant such as petrochemical and polymer plant where the chlorine is commonly used in the petrochemical and polymer plants such as Polyplastics Asia Pacific, Lynas, Petronas-MTBE and Kaneka Malaysia. So, there are high potential to accidental release of chlorine in the selected area thus as the main reason on choosing the chlorine as pollutant. Air pollutant dispersion is significantly affected by the meteorological and topographical conditions. The field experiment measurement has the limitations to provide detail information of air flow on complex terrain and hence computational fluid dynamics (CFD) techniques is applied to provide the comprehensive information on the species transport and turbulence simultaneously. To ensure the accuracy of the air flow on CFD model, it must be validated before it routinely used. So, one of the objectives for this study is to model the wind flows past a scaled-down model using particle image velocimetry (PIV) measurement and compare with the CFD simulation. To achieve this objective, parameter such as wind speeds and directions was collected and will be used to obtain the results by using CFD as a simulation tools. The typical eastern wind with wind speed 1.78 m/s is used. The turbulence flow was modelled using scale-adaptive simulation (SAS) turbulence model. The model was validated with the PIV measurement on the scale down topography model. The CFD prediction showed good agreement with the error ranging 1.5 to 2.6% from the PIV measurement. Hence, the model can be used to evaluate the combine effect of surface terrain, wind direction and speed on the pollution dispersion around Gebeng industrial area. It was found that the residential area R1 (Kampung Baru Gebeng, Tanjung Rhu, Kampung Sungai Ular, Kampung Darat Sungai Ular and Kampung Baging) and R2 (Kampung Selamat, Kampung Berahi, Kampung Balok, Kampung Seberang Balok Kampung Balok Baru and Kampung Balok Perdana) are affected when the chlorine leakage occurs during June to September and November to January, respectively. Accidental release of this chlorine gas may have led to the emergencies. Hence, it is also important to develop a suitable safety evacuation plan in the event accidental chlorine leak. Suitable safety evacuation route and points is proposed for the case when the residential area R1 and R2 are affected.
format	Thesis
qualification_level	Master's degree
author	Norliyana, Erain
author_facet	Norliyana, Erain
author_sort	Norliyana, Erain
title	Computational fluid dynamics study of air pollutant dispersion around Kuantan
title_short	Computational fluid dynamics study of air pollutant dispersion around Kuantan
title_full	Computational fluid dynamics study of air pollutant dispersion around Kuantan
title_fullStr	Computational fluid dynamics study of air pollutant dispersion around Kuantan
title_full_unstemmed	Computational fluid dynamics study of air pollutant dispersion around Kuantan
title_sort	computational fluid dynamics study of air pollutant dispersion around kuantan
granting_institution	Universiti Malaysia Pahang
granting_department	Faculty of Chemical and Natural Resources Engineering
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/30031/1/Computational%20fluid%20dynamics%20study%20of%20air%20pollutant%20dispersion%20around%20Kuantan.wm.pdf
_version_	1783732132491821056

Computational fluid dynamics study of air pollutant dispersion around Kuantan

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