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Article

Revealing the Challenges of Smart Rainwater Harvesting for Integrated and Digital Resilience of Urban Water Infrastructure

1
Unit of Environmental Engineering, Department of Infrastructure Engineering, Faculty of Engineering Sciences, University of Innsbruck, Technikerstrasse 13, 6020 Innsbruck, Austria
2
Department of Civil and Environmental Engineering, University of Utah, 201 Presidents’ Cir, Salt Lake City, UT 84112, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Enedir Ghisi
Water 2021, 13(14), 1902; https://doi.org/10.3390/w13141902
Received: 18 May 2021 / Revised: 5 July 2021 / Accepted: 5 July 2021 / Published: 9 July 2021
(This article belongs to the Special Issue Resilience of Interdependent Urban Water Systems)
Smart rainwater harvesting (RWH) systems can automatically release stormwater prior to rainfall events to increase detention capacity on a household level. However, impacts and benefits of a widespread implementation of these systems are often unknown. This works aims to investigate the effect of a large-scale implementation of smart RWH systems on urban resilience by hypothetically retrofitting an Alpine municipality with smart rain barrels. Smart RWH systems represent dynamic systems, and therefore, the interaction between the coupled systems RWH units, an urban drainage network (UDN) and digital infrastructure is critical for evaluating resilience against system failures. In particular, digital parameters (e.g., accuracy of weather forecasts, or reliability of data communication) can differ from an ideal performance. Therefore, different digital parameters are varied to determine the range of uncertainties associated with smart RWH systems. As the results demonstrate, smart RWH systems can further increase integrated system resilience but require a coordinated integration into the overall system. Additionally, sufficient consideration of digital uncertainties is of great importance for smart water systems, as uncertainties can reduce/eliminate gained performance improvements. Moreover, a long-term simulation should be applied to investigate resilience with digital applications to reduce dependence on boundary conditions and rainfall patterns. View Full-Text
Keywords: communication technology; digital resilience; smart rainwater harvesting; smart city; smartin toolbox; weather forecast communication technology; digital resilience; smart rainwater harvesting; smart city; smartin toolbox; weather forecast
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MDPI and ACS Style

Oberascher, M.; Dastgir, A.; Li, J.; Hesarkazzazi, S.; Hajibabaei, M.; Rauch, W.; Sitzenfrei, R. Revealing the Challenges of Smart Rainwater Harvesting for Integrated and Digital Resilience of Urban Water Infrastructure. Water 2021, 13, 1902. https://doi.org/10.3390/w13141902

AMA Style

Oberascher M, Dastgir A, Li J, Hesarkazzazi S, Hajibabaei M, Rauch W, Sitzenfrei R. Revealing the Challenges of Smart Rainwater Harvesting for Integrated and Digital Resilience of Urban Water Infrastructure. Water. 2021; 13(14):1902. https://doi.org/10.3390/w13141902

Chicago/Turabian Style

Oberascher, Martin, Aun Dastgir, Jiada Li, Sina Hesarkazzazi, Mohsen Hajibabaei, Wolfgang Rauch, and Robert Sitzenfrei. 2021. "Revealing the Challenges of Smart Rainwater Harvesting for Integrated and Digital Resilience of Urban Water Infrastructure" Water 13, no. 14: 1902. https://doi.org/10.3390/w13141902

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