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Rainwater harvesting system for academic building. Is it worth it? / Azirah Adnan, Asmalia Che Ahmad and Suharto Teriman

Rainwater Harvesting System (RWHS) is proposed to address the water scarcity problem and as an alternative water supply for non-potable water usage. However, the economic benefit of the system depends on site-specific criteria such as rainfall availability, catchment area, storage, and water demand....

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Main Authors: Azirah, Adnan, Che Ahmad, Asmalia, Teriman, Suharto
Format: Conference or Workshop Item
Language:English
Published: 2021
Subjects:
Water supply for domestic and industrial purposes
Water distribution systems
Online Access:https://ir.uitm.edu.my/id/eprint/73732/1/73732.pdf
https://ir.uitm.edu.my/id/eprint/73732/
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spelling my.uitm.ir.737322023-03-21T02:19:42Z https://ir.uitm.edu.my/id/eprint/73732/ Rainwater harvesting system for academic building. Is it worth it? / Azirah Adnan, Asmalia Che Ahmad and Suharto Teriman Azirah, Adnan Che Ahmad, Asmalia Teriman, Suharto Water supply for domestic and industrial purposes Water distribution systems Rainwater Harvesting System (RWHS) is proposed to address the water scarcity problem and as an alternative water supply for non-potable water usage. However, the economic benefit of the system depends on site-specific criteria such as rainfall availability, catchment area, storage, and water demand. This paper attempts to evaluate the economic benefits of RWHS for toilet flushing usage for one academic building at Politeknik Sultan Azlan Shah (PSAS) namely the Civil Engineering Department (CED) block. Daily rainfall data employed in this work were obtained from the nearest rainfall station at Felda Gedangsa and the water demand was obtained from the building’s occupants through a questionnaire survey combined with data obtained from PSAS’s documents. The daily water mass balance model was adopted as the simulation approach. The economic benefits of RWHS in terms of percentage of reliability (R) and payback period (PBP) were examined for the academic block. In addition, the effects of two types of rainwater tank sizes on PBP were also evaluated. The tanks are High-Density Polyethylene (HDPE) tank and Fibre-reinforced Plastic (FRP) sectional tanks. It was found that the percentage of reliability (R) for Civil Engineering Department block is between 82.22% to 100% by using a tank with a size ranging from 10 m3 to 150 m3. Interestingly, for tanks with a size range up to 60 m3, the cost of a HDPE tank is lower than FRP sectional tanks with the PBP ranging from 11 to 19 years and 13 to 20 years, respectively. However, for tanks with a size of 100 m3 onwards, the cost of HDPE tank becomes more expensive than the cost of FRP sectional tank with PBP ranging from 23 to 38 years and 23 to 29 years, respectively. 2021 Conference or Workshop Item PeerReviewed text en https://ir.uitm.edu.my/id/eprint/73732/1/73732.pdf Rainwater harvesting system for academic building. Is it worth it? / Azirah Adnan, Asmalia Che Ahmad and Suharto Teriman. (2021) In: Virtual Go-Green: Conference and Publication (V-Go Green 2020), 29-30 September 2020, Universiti Teknologi MARA, Cawangan Perak Kampus Seri Iskandar.
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Water supply for domestic and industrial purposes
Water distribution systems
spellingShingle Water supply for domestic and industrial purposes
Water distribution systems
Azirah, Adnan
Che Ahmad, Asmalia
Teriman, Suharto
Rainwater harvesting system for academic building. Is it worth it? / Azirah Adnan, Asmalia Che Ahmad and Suharto Teriman
description Rainwater Harvesting System (RWHS) is proposed to address the water scarcity problem and as an alternative water supply for non-potable water usage. However, the economic benefit of the system depends on site-specific criteria such as rainfall availability, catchment area, storage, and water demand. This paper attempts to evaluate the economic benefits of RWHS for toilet flushing usage for one academic building at Politeknik Sultan Azlan Shah (PSAS) namely the Civil Engineering Department (CED) block. Daily rainfall data employed in this work were obtained from the nearest rainfall station at Felda Gedangsa and the water demand was obtained from the building’s occupants through a questionnaire survey combined with data obtained from PSAS’s documents. The daily water mass balance model was adopted as the simulation approach. The economic benefits of RWHS in terms of percentage of reliability (R) and payback period (PBP) were examined for the academic block. In addition, the effects of two types of rainwater tank sizes on PBP were also evaluated. The tanks are High-Density Polyethylene (HDPE) tank and Fibre-reinforced Plastic (FRP) sectional tanks. It was found that the percentage of reliability (R) for Civil Engineering Department block is between 82.22% to 100% by using a tank with a size ranging from 10 m3 to 150 m3. Interestingly, for tanks with a size range up to 60 m3, the cost of a HDPE tank is lower than FRP sectional tanks with the PBP ranging from 11 to 19 years and 13 to 20 years, respectively. However, for tanks with a size of 100 m3 onwards, the cost of HDPE tank becomes more expensive than the cost of FRP sectional tank with PBP ranging from 23 to 38 years and 23 to 29 years, respectively.
format Conference or Workshop Item
author Azirah, Adnan
Che Ahmad, Asmalia
Teriman, Suharto
author_facet Azirah, Adnan
Che Ahmad, Asmalia
Teriman, Suharto
author_sort Azirah, Adnan
title Rainwater harvesting system for academic building. Is it worth it? / Azirah Adnan, Asmalia Che Ahmad and Suharto Teriman
title_short Rainwater harvesting system for academic building. Is it worth it? / Azirah Adnan, Asmalia Che Ahmad and Suharto Teriman
title_full Rainwater harvesting system for academic building. Is it worth it? / Azirah Adnan, Asmalia Che Ahmad and Suharto Teriman
title_fullStr Rainwater harvesting system for academic building. Is it worth it? / Azirah Adnan, Asmalia Che Ahmad and Suharto Teriman
title_full_unstemmed Rainwater harvesting system for academic building. Is it worth it? / Azirah Adnan, Asmalia Che Ahmad and Suharto Teriman
title_sort rainwater harvesting system for academic building. is it worth it? / azirah adnan, asmalia che ahmad and suharto teriman
publishDate 2021
url https://ir.uitm.edu.my/id/eprint/73732/1/73732.pdf
https://ir.uitm.edu.my/id/eprint/73732/
_version_ 1761622338161344512
score 13.211869

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