Rainwater Harvesting System in a Congested Residential Estate
Occurrences of flash floods in urban areas have increased significantly and become an issue of concern to the public. However, physical development continues unabated due to urbanisation and high demands for residential houses. Towards this end, a Water Sensitive Urban Design (WSUD) approach such as...
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| Format: | Article |
| Language: | English |
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UNIMAS Publisher
2015-09-01
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| Series: | Journal of Applied Science & Process Engineering |
| Subjects: | |
| Online Access: | https://publisher.unimas.my/ojs/index.php/JASPE/article/view/165 |
| _version_ | 1818646876831875072 |
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| author | Evon E.W. Tang Darrien Y.S. Mah |
| author_facet | Evon E.W. Tang Darrien Y.S. Mah |
| author_sort | Evon E.W. Tang |
| collection | DOAJ |
| description | Occurrences of flash floods in urban areas have increased significantly and become an issue of concern to the public. However, physical development continues unabated due to urbanisation and high demands for residential houses. Towards this end, a Water Sensitive Urban Design (WSUD) approach such as rainwater harvesting system is proposed for residential development to mitigate flash floods without discouraging economic development of a city. Conventional rainwater tank is not suitable anymore as most of the residential housing developments are providing smaller land space. Thus, a design to cater for limited empty spaces is emerging. This has been the intension of this paper to introduce a wall-mount rainwater harvesting system in congested residential estates. In this research, super slim rainwater tank and air conditioner-sized tank have been designed to fit into a standard housing compound. The rainwater tanks act as a tool to store certain amount of stormwater runoff from roof area before it is discharged into drainage system. It is found that the peak runoff discharge is reduced from 0.003100 m3/s to 0.002703 m3/s and 0.002152 m3/s for the two types of aforementioned tanks. Reductions of 13% and 31% on peak runoff discharge are registered respectively by testing different configuration of water tanks. Due to the reduction of peak runoff discharge, the stormwater runoff could be controlled and subsequently mitigate the occurrence of flash flood. Sustainability could be achieved by managing stormwater runoff in an effective way with the aids of rainwater harvesting system. |
| first_indexed | 2024-12-17T00:53:37Z |
| format | Article |
| id | doaj.art-d47372edc3bf4f3d9444736f88089d23 |
| institution | Directory Open Access Journal |
| issn | 2289-7771 |
| language | English |
| last_indexed | 2024-12-17T00:53:37Z |
| publishDate | 2015-09-01 |
| publisher | UNIMAS Publisher |
| record_format | Article |
| series | Journal of Applied Science & Process Engineering |
| spelling | doaj.art-d47372edc3bf4f3d9444736f88089d232022-12-21T22:09:42ZengUNIMAS PublisherJournal of Applied Science & Process Engineering2289-77712015-09-012210.33736/jaspe.165.2015Rainwater Harvesting System in a Congested Residential EstateEvon E.W. Tang0Darrien Y.S. Mah1Department of Civil Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Kuching, Sarawak, Malaysia. Department of Civil Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Kuching, Sarawak, Malaysia. Occurrences of flash floods in urban areas have increased significantly and become an issue of concern to the public. However, physical development continues unabated due to urbanisation and high demands for residential houses. Towards this end, a Water Sensitive Urban Design (WSUD) approach such as rainwater harvesting system is proposed for residential development to mitigate flash floods without discouraging economic development of a city. Conventional rainwater tank is not suitable anymore as most of the residential housing developments are providing smaller land space. Thus, a design to cater for limited empty spaces is emerging. This has been the intension of this paper to introduce a wall-mount rainwater harvesting system in congested residential estates. In this research, super slim rainwater tank and air conditioner-sized tank have been designed to fit into a standard housing compound. The rainwater tanks act as a tool to store certain amount of stormwater runoff from roof area before it is discharged into drainage system. It is found that the peak runoff discharge is reduced from 0.003100 m3/s to 0.002703 m3/s and 0.002152 m3/s for the two types of aforementioned tanks. Reductions of 13% and 31% on peak runoff discharge are registered respectively by testing different configuration of water tanks. Due to the reduction of peak runoff discharge, the stormwater runoff could be controlled and subsequently mitigate the occurrence of flash flood. Sustainability could be achieved by managing stormwater runoff in an effective way with the aids of rainwater harvesting system.https://publisher.unimas.my/ojs/index.php/JASPE/article/view/165Rainwater HarvestingDetentionFlash floodStormwater runoffUrban drainageWater Sensitive Urban Design. |
| spellingShingle | Evon E.W. Tang Darrien Y.S. Mah Rainwater Harvesting System in a Congested Residential Estate Journal of Applied Science & Process Engineering Rainwater Harvesting Detention Flash flood Stormwater runoff Urban drainage Water Sensitive Urban Design. |
| title | Rainwater Harvesting System in a Congested Residential Estate |
| title_full | Rainwater Harvesting System in a Congested Residential Estate |
| title_fullStr | Rainwater Harvesting System in a Congested Residential Estate |
| title_full_unstemmed | Rainwater Harvesting System in a Congested Residential Estate |
| title_short | Rainwater Harvesting System in a Congested Residential Estate |
| title_sort | rainwater harvesting system in a congested residential estate |
| topic | Rainwater Harvesting Detention Flash flood Stormwater runoff Urban drainage Water Sensitive Urban Design. |
| url | https://publisher.unimas.my/ojs/index.php/JASPE/article/view/165 |
| work_keys_str_mv | AT evonewtang rainwaterharvestingsysteminacongestedresidentialestate AT darrienysmah rainwaterharvestingsysteminacongestedresidentialestate |