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Title: Equations for potential water savings through rainwater harvesting for different climatic conditions in Adelaide (Australia)

Authors: Upendra Paudel; Monzur A. Imteaz; Cristina Matos

Addresses: Department of Civil and Construction Engineering, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Melbourne, VIC 3122, Australia ' Department of Civil and Construction Engineering, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Melbourne, VIC 3122, Australia ' Escola de Ciências e Tecnologia, Universidade de Trás-os-Montes e Alto Douro (UTAD), 5000-801 Vila Real, Portugal

Abstract: Among all the alternative options to minimise potable water demand, rainwater harvesting system has received the highest level of attention due to its easy collection and reuse potentials. However, available methods of quantifying potential water savings from rainwater tanks are questionable. This paper presents development of generalised equations for the quantification of potential water savings under different climatic conditions for an Australian city, Adelaide. An earlier developed daily water balance model, eTank, which can calculate potential water savings in three climatic conditions (dry, average and wet) was used for this purpose. Several relationship graphs of water savings were produced through model calculations for different input parameters.

Keywords: rainwater tank; daily water balance; water savings; climatic conditions; eTank.

DOI: 10.1504/IJHST.2018.088678

International Journal of Hydrology Science and Technology, 2018 Vol.8 No.1, pp.91 - 104

Available online: 11 Dec 2017 *

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