Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/114861
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Type: Journal article
Title: Exploring numerically the benefits of water discharge prediction for the remote RTC of WDNs
Author: Creaco, E.
Citation: Water, 2017; 8(12):961-1-961-13
Publisher: MDPI
Issue Date: 2017
ISSN: 2073-4441
2073-4441
Statement of
Responsibility: 
Enrico Creaco
Abstract: This paper explores numerically the benefits of water discharge prediction in the real time control (RTC) of water distribution networks (WDNs). An algorithm aimed at controlling the settings of control valves and variable speed pumps, as a function of pressure head signals from remote nodes in the network, is used. Two variants of the algorithm are considered, based on the measured water discharge in the device at the current time and on the prediction of this variable at the new time, respectively. As a result of the prediction, carried out using a polynomial with coefficients determined through linear regression, the RTC algorithm attempts to correct the expected deviation of the controlled pressure head from the set point, rather than the currently measured deviation. The applications concerned the numerical simulation of RTC in a WDN, in which the nodal demands are reconstructed stochastically through the bottom-up approach. The results prove that RTC benefits from the implementation of the prediction, in terms of the closeness of the controlled variable to the set point and of total variations of the device setting. The benefits are more evident when the water discharge features contained random fluctuations and large hourly variations.
Keywords: Valve; pump; real time control; pressure; water distribution modelling; leakage
Rights: © 2017 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
RMID: 0030079560
DOI: 10.3390/w9120961
Appears in Collections:Civil and Environmental Engineering publications

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