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Techno-Economic and Sensitivity Analysis of Rainwater Harvesting System as Alternative Water Source

Author

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  • Pg Emeroylariffion Abas

    (Faculty of Integrated Technologies, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei Darussalam)

  • TMI Mahlia

    (School of Information, Systems and Modelling, Faculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, NSW 2007, Australia)

Abstract

This paper formulates a rainwater harvesting model, with system and economic measures to determine the feasibility of a rainwater harvesting system, which uses water from the mains to complement the system. Although local meteorological and market data were used to demonstrate the model, it can also be easily adapted for analysis of other localities. Analysis has shown that an optimum tank size exists, which minimizes the cost per unit volume of water. Economic performance measures have indicated that rainwater harvesting system is currently infeasible to be implemented in Brunei; with capital cost and water price being shown to be among the prohibiting factors. To improve feasibility, a combination of rebate scheme on capital cost and raising the current water price has been proposed. It has also been shown that the system is more viable for households with high water demand.

Suggested Citation

  • Pg Emeroylariffion Abas & TMI Mahlia, 2019. "Techno-Economic and Sensitivity Analysis of Rainwater Harvesting System as Alternative Water Source," Sustainability, MDPI, vol. 11(8), pages 1-21, April.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:8:p:2365-:d:224579
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    References listed on IDEAS

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    1. Brennan, Liam & Owende, Philip, 2010. "Biofuels from microalgae--A review of technologies for production, processing, and extractions of biofuels and co-products," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(2), pages 557-577, February.
    2. Malik, A.Q., 2011. "Assessment of the potential of renewables for Brunei Darussalam," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(1), pages 427-437, January.
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    Cited by:

    1. Igor Catão Martins Vaz & Rodrigo Novais Istchuk & Tânia Mara Sebben Oneda & Enedir Ghisi, 2023. "Sustainable Rainwater Management and Life Cycle Assessment: Challenges and Perspectives," Sustainability, MDPI, vol. 15(16), pages 1-21, August.
    2. T. M. I. Mahlia & H. Syaheed & A. E. Pg Abas & F. Kusumo & A. H. Shamsuddin & Hwai Chyuan Ong & M. R. Bilad, 2019. "Organic Rankine Cycle (ORC) System Applications for Solar Energy: Recent Technological Advances," Energies, MDPI, vol. 12(15), pages 1-19, July.

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