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A Methodology for the Design of RTC Strategies for Combined Sewer Networks

1
Aquafin NV, R&D, Dijkstraat 8, 2630 Aartselaar, Belgium
2
KU Leuven, Sustainable Chemical Process Technology TC, Technology Campuses Ghent and Aalst, Gebroeders De Smetstraat 1, 9000 Gent, Belgium
3
KU Leuven, Hydraulics Section, Kasteelpark Arenberg 40, 3001 Leuven, Belgium
*
Author to whom correspondence should be addressed.
Water 2018, 10(11), 1675; https://doi.org/10.3390/w10111675
Received: 18 September 2018 / Revised: 21 October 2018 / Accepted: 13 November 2018 / Published: 16 November 2018
(This article belongs to the Section Urban Water Management)
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Abstract

While real-time control (RTC) is considered an established means of performance improvement for existing urban drainage networks, practical applications are frequently only documented for large case studies, and many operators are still reluctant to adopt RTC into their own systems. The purpose of the presented study is to highlight the potential of RTC also for smaller networks by the example of five representative catchments in Flanders, Belgium, and to demonstrate a novel methodology for the automated design of control strategies. This method analyses a given sewer network for the identification of suitable existing and new control locations. The gathered information is used in a second step for the design of control algorithms according to generic control concepts documented in the literature, such as e.g., “Equal Filling Degree”. The resulting RTC strategy uses sensible default parameters, and can form a starting point for further refinement through optimization or manual tuning. With a modelled total combined sewer overflow volume reduction of 20% to 50%, the created strategies showed generally good performance for the tested catchments. The method proved to be applicable for all tested networks. Its use for the real-life implementation of RTC is currently under way for 10 other Flemish cases. View Full-Text
Keywords: real-time control; hydrodynamic modelling; sensitivity analysis; control location selection; control strategy design real-time control; hydrodynamic modelling; sensitivity analysis; control location selection; control strategy design
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Kroll, S.; Weemaes, M.; Van Impe, J.; Willems, P. A Methodology for the Design of RTC Strategies for Combined Sewer Networks. Water 2018, 10, 1675.

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