scholarly journals Simulating development strategies for water supply systems

2005 ◽  
Vol 7 (1) ◽  
pp. 41-51 ◽  
Author(s):  
D. E. Tillman ◽  
T. A. Larsen ◽  
C. Pahl-Wostl ◽  
W. Gujer
Keyword(s):  
Water Supply ◽  
Best Practice ◽  
Management Strategies ◽  
Water Supply Systems ◽  
Data Sets ◽  
Design Strategies ◽  
Agent Based ◽  
Current Design ◽  
Scenario Testing ◽  
Supply Systems

The objective of this paper is to point out existing risks of current design and management strategies in water supply systems and to identify possible ways of designing and operating schemes which minimize these risks. This paper is motivated by the observation that existing design principles and engineering rules (best practice) seem to cope insufficiently or even conflict with current trends of declining water demand. In order to evaluate this situation, an agent-based model comprising the current rules of best practice was developed in a participatory process. Once the model was validated with data sets from a real utility, multiple-scenario testing was used to explore different design strategies, thus allowing ideas for developing alternative management and design schemes to be generated. The simulations show that the traditional risk of insufficient supply security must be supplemented by considering the opposite risk of excessive security (over-capacity). The introduction of demand-side measures may help to calibrate existing best practice with the trends of the current operating environment. Ideas are brought forward on how to shape incentive systems for stakeholders in order to facilitate such a shift.

Interaction analysis of stakeholders in water supply systems

2001 ◽  
Vol 43 (5) ◽  
pp. 319-326 ◽  
Author(s):  
T. Tillman ◽  
T. A. Larsen ◽  
C. Pahl-Wostl ◽  
W. Gujer
Keyword(s):  
Domain Knowledge ◽  
Interaction Analysis ◽  
Management Strategies ◽  
Water Supply Systems ◽  
Data Sets ◽  
Agent Based ◽  
Management Concepts ◽  
Uncertain Future ◽  
Flexible Management ◽  
Scenario Testing

An analysis of the characteristic goals, strategies and rules of behavior of relevant stakeholders allows the efficacy and potential risks of past and current engineering and management concepts to be estimated. The study is driven by the observable shift from security to cost-centered strategies by water utilities and the difficulties of balancing technical and financial needs in an uncertain future. Its benefits include a methodology with a twofold result. With the aid of domain knowledge from experts involved in a participatory process, the interactions of a subset of stakeholders are quantified and documented in a rule catalog. This leads to an improved understanding of their decision-making rules. An agent-based model comprising these stakeholders' rules of behavior in subsequently development. Once the model is validated with data sets from a real utility, multiple-scenario testing helps to explore different strategies and can be used to generate ideas for developing flexible management and design schemes. Despite the complexity of the system described, simple model rules which are repeated annually can replicate the general development of both capacity and cost-related parameters. Scenario simulations show the effects of different management strategies on key parameters such as capacity, water price and financial debt.

Modeling the actors in water supply systems

1999 ◽  
Vol 39 (4) ◽  
pp. 203-211 ◽  
Author(s):  
D. Tillman ◽  
T. A. Larsen ◽  
C. Pahl-Wostl ◽  
W. Gujer
Keyword(s):  
Sustainable Development ◽  
Water Supply ◽  
Trend Analysis ◽  
Final Stage ◽  
Water Supply Systems ◽  
The Sustainable Development ◽  
Agent Based ◽  
First Results ◽  
Under Construction ◽  
Supply Systems

A methodology is developed to reveal the dynamics of behavior and interactions among actors (stakeholders) in water supply systems and their effect on the technical network and the ecological and socio-economic environment. An agent-based model is under construction which allows to simulate different scenarios of the actors' behavior and to compare the results with observed phenomena (stylized facts) of Swiss cities. First results further clarify the significance of demand trend analysis. We envision the model in a final stage as being helpful to tackle the task of illuminating the diffusive claims, expectations and interactions of the actors involved. Knowledge about these processes is crucial to uncover bottlenecks hindering the sustainable development of our water supply systems into the future.

Nanotechnology application in water resource management

2021 ◽  
pp. 33-62
Author(s):  
Arezoo Boroomandnia ◽  
Omid Bozorg-Haddad ◽  
Jimmy Yu ◽  
Mariam Darestani
Keyword(s):  
Resource Management ◽  
Water Resources ◽  
Water Supply ◽  
Case Studies ◽  
Water Resource ◽  
Water Demand ◽  
Water Resource Management ◽  
Management Strategies ◽  
Water Supply Systems ◽  
Supply Systems

Abstract Fast-growing water demand, population growth, global climate change, and water quality deterioration all drive scientists to apply novel approaches to water resource management. Nanotechnology is one of the state-of-the-art tools in scientists’ hands which they can use to meet human water needs via reuse of water and utilizing unconventional water resources. Additionally, monitoring water supply systems using new nanomaterials provides more efficient water distribution networks. In this chapter, we consider the generic concepts of nanotechnology and its effects on water resources management strategies. A wide range of nanomaterials and nanotechnologies, including nano-adsorbents, nano-photocatalysts, and nano-membranes, are introduced to explain the role of nanotechnology in providing new water resources to meet growing demand. Also, nanomaterial application as a water alternative in industry, reducing water demand in the industrial sector, is presented. Another revolution made by nanomaterials, also discussed in this chapter, is their use in water supply systems for monitoring probable leakage and leakage reduction. Finally, we present case studies that clarify the influence of nanotechnology on water resources and their management strategies. These case studies prove the importance and inevitable application of nanotechnology to satisfy the rising water demand in the modern world, and show the necessity of nanotechnology awareness for today's water experts.

scholarly journals An IoT-Based Framework for Smart Water Supply Systems Management

2020 ◽  
Vol 12 (7) ◽  
pp. 114
Author(s):  
Rosiberto Gonçalves ◽  
Jesse J. M. Soares ◽  
Ricardo M. F. Lima
Keyword(s):  
Water Supply ◽  
Business Processes ◽  
Smart Cities ◽  
Management Strategies ◽  
Water System ◽  
Large Data ◽  
Water Supply Systems ◽  
Smart Water ◽  
Flexible Architecture ◽  
Supply Systems

The world’s population growth and climate changes increase the demand for high-quality water. This fact forces humankind to create new water management strategies. Smart cities have successfully applied the Internet of Things (IoT) technology in many sectors. Moreover, Complex Event Processing (CEP) can analyze and process large data sets produced by IoT sensors in real-time. Traditional business processes are too rigid in expressing the dynamic behavior of water supply systems. Every execution path must be explicitly specified. On the other hand, declarative business processes allow execution paths that are not prohibited by the rules, providing more flexibility for water supply managers. This paper joins together IoT, CEP, and declarative processes to create a powerful, efficient, and flexible architecture (REFlex Water) to manage water supply systems. To the knowledge of the authors, REFlex Water is the first solution to combine these technologies in the context of water supply systems. The paper describes the REFlex Water architecture and demonstrates its application to a real water system from a Brazilian municipality. Results are promising, and the managers from the Brazilian water company are expanding the use of REFlex Water to other sectors of their water supply system.

scholarly journals Sustainability Analysis of Alternative Long-Term Management Strategies for Water Supply Systems: A Case Study in Reggio Emilia (Italy)

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 450 ◽  
Author(s):  
Giada Felisa ◽  
Ilaria Lauriola ◽  
Pietro Pedrazzoli ◽  
Vittorio Di Federico ◽  
Valentina Ciriello
Keyword(s):  
Water Supply ◽  
Management Strategies ◽  
Metabolic Model ◽  
Reggio Emilia ◽  
Water Supply Systems ◽  
Water Withdrawals ◽  
Water Companies ◽  
Supply Systems ◽  
Term Management

Increasing urban water demand and water stress conditions due to population growth, combined with climate change and a non-uniform distribution of water resources in space and time, represent major concerns for water companies. As such, long-term management strategies need to improve the resilience of water supply systems and account for the sustainability of water withdrawals. In this context, metabolic modelling may provide a support to decision-making in the medium-long term, based on sustainability criteria. This approach enables mimicking a water supply network (WSN) based on a set of material and energy fluxes that interact and influence each other. By analyzing these fluxes, a suite of key performance indicators (KPIs) is evaluated in order to identify which kind of interventions may be applied to increase the sustainability of the system. Here, we apply a metabolic model, WaterMet2, to a WSN in the Reggio Emilia Province (Italy), combined with hydraulic simulations conducted with EPANET. Different alternative strategies are compared, including a reduction of water withdrawals from the main well field due to a possible future decrease in water availability. Based on KPIs, sustainable long-term strategies are evaluated in order to identify the most suitable solution for dynamic sustainable management of the water supply system.

ELECTRICITY LOAD PREDICTION FOR WATER SUPPLY SYSTEMS

2008 ◽  
Vol 7 (4) ◽  
pp. 453-458
Author(s):  
Mihai Gavrilas ◽  
Gilda Gavrilas ◽  
Ovidiu Ivanov
Keyword(s):  
Water Supply ◽  
Water Supply Systems ◽  
Load Prediction ◽  
Electricity Load ◽  
Supply Systems
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