Resilience enhancement of critical infrastructure – graph-theoretical resilience analysis of the water distribution system in the German city of Darmstadt

  • Water suppliers are faced with the great challenge of achieving high-quality and, at the same time, low-cost water supply. Since climatic and demographic influences will pose further challenges in the future, the resilience enhancement of water distribution systems (WDS), i.e. the enhancement of their capability to withstand and recover from disturbances, has been in particular focus recently. To assess the resilience of WDS, graph-theoretical metrics have been proposed. In this study, a promising approach is first physically derived analytically and then applied to assess the resilience of the WDS for a district in a major German City. The topology based resilience index computed for every consumer node takes into consideration the resistance of the best supply path as well as alternative supply paths. This resistance of a supply path is derived to be the dimensionless pressure loss in the pipes making up the path. The conducted analysis of a present WDS provides insight into the process of actively influencing the resilience of WDS locally and globally by adding pipes. The study shows that especially pipes added close to the reservoirs and main branching points in the WDS result in a high resilience enhancement of the overall WDS.

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Metadaten
Author:Imke-Sophie Lorenz, Lena Altherr, Peter F. Pelz
DOI:https://doi.org/10.1007/978-3-030-64228-0_13
ISBN:978-3-030-64228-0
ISBN:978-3-030-64227-3
Parent Title (English):14th WCEAM Proceedings
Publisher:Springer
Place of publication:Cham
Document Type:Conference Proceeding
Language:English
Year of Completion:2020
Tag:Case study; Resilience assessment; Resilience metric graph theory; Resilient infrastructure; Water distribution system
First Page:137
Last Page:149
Note:
14th WCEAM Proceedings. World Congress on Engineering Asset Management, 28-31 July 2019, Singapore

Part of the Lecture Notes in Mechanical Engineering book series (LNME)
Link:https://doi.org/10.1007/978-3-030-64228-0_13
Zugriffsart:campus
Institutes:FH Aachen / Fachbereich Elektrotechnik und Informationstechnik