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Article

Modelling and Incorporating the Variable Demand Patterns to the Calibration of Water Distribution System Hydraulic Model

1
Scarce Resources and Circular Economy (ScaRCE), UniSA STEM, University of South Australia, Mawson Lakes, SA 5095, Australia
2
Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia
3
South Australian Water Corporation, Adelaide, SA 5000, Australia
*
Author to whom correspondence should be addressed.
Academic Editor: Hung Tao Shen
Water 2021, 13(20), 2890; https://doi.org/10.3390/w13202890
Received: 9 September 2021 / Revised: 6 October 2021 / Accepted: 12 October 2021 / Published: 15 October 2021
(This article belongs to the Section Hydraulics and Hydrodynamics)
Calibration of a water distribution system (WDS) hydraulic model requires adjusting several parameters including hourly or sub-hourly demand multipliers, pipe roughness and settings of various hydraulic components. The water usage patterns or demand patterns in a 24-h cycle varies with the customer types and can be related to many factors including spatial and temporal factors. The demand patterns can also vary on a daily basis. For an extended period of hydraulic simulation, the modelling tools allows modelling of the variable demand patterns using daily multiplication factors. In this study, a linear modelling approach was used to handle the variable demand patterns. The parameters of the linear model allow modelling of the variable demand patterns with respect to the baseline values, and they were optimised to maximise the association with the observed data. This procedure was applied to calibrate the hydraulic model developed in EPANET of a large drinking water distribution system in regional South Australia. Local and global optimisation techniques were used to find the optimal values of the linear modelling parameters. The result suggests that the approach has the potential to model the variable demand patterns in a WDS hydraulic model and it improves the objective function of calibration. View Full-Text
Keywords: drinking water distribution system hydraulic modelling; EPANET calibration; optimisation of demand multipliers; modelling variable demand patterns drinking water distribution system hydraulic modelling; EPANET calibration; optimisation of demand multipliers; modelling variable demand patterns
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MDPI and ACS Style

Hossain, S.; Hewa, G.A.; Chow, C.W.K.; Cook, D. Modelling and Incorporating the Variable Demand Patterns to the Calibration of Water Distribution System Hydraulic Model. Water 2021, 13, 2890. https://doi.org/10.3390/w13202890

AMA Style

Hossain S, Hewa GA, Chow CWK, Cook D. Modelling and Incorporating the Variable Demand Patterns to the Calibration of Water Distribution System Hydraulic Model. Water. 2021; 13(20):2890. https://doi.org/10.3390/w13202890

Chicago/Turabian Style

Hossain, Sharif, Guna A. Hewa, Christopher W.K. Chow, and David Cook. 2021. "Modelling and Incorporating the Variable Demand Patterns to the Calibration of Water Distribution System Hydraulic Model" Water 13, no. 20: 2890. https://doi.org/10.3390/w13202890

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