A5050662083- Water Systems and Optimization
- Water resources management and optimization
- Urban Stormwater Management Solutions
- Hydraulic flow and structures
- Water-Energy-Food Nexus Studies
- Hydraulic and Pneumatic Systems
- Water Treatment and Disinfection
- Water Resource Management and Quality
- Smart Grid Energy Management
- Geotechnical Engineering and Underground Structures
- Cavitation Phenomena in Pumps
- Water Quality Monitoring Technologies
- Flood Risk Assessment and Management
- Oil and Gas Production Techniques
- Irrigation Practices and Water Management
- Groundwater flow and contamination studies
- E-Learning and Knowledge Management
- Energy Efficiency and Management
- Membrane Separation Technologies
- Environmental Monitoring and Data Management
- Sustainable Building Design and Assessment
- Wind and Air Flow Studies
- Advanced Sensor and Control Systems
- Precipitation Measurement and Analysis
- Public Health and Environmental Issues
Universitat Politècnica de València
2015-2024
The Battle of the Water Networks II (BWN-II) is latest a series competitions related to design and operation water distribution systems (WDSs) undertaken within Distribution Systems Analysis (WDSA) Symposium series. BWN-II problem specification involved broadly defined for an existing network that has be upgraded increased future demands, addition new development area. decisions parallel pipes, storage, operational controls pumps valves, sizing backup power supply. Design criteria hydraulic,...
Water temperature is often monitored at water sources and treatment works; however, there limited monitoring of the in drinking distribution system (DWDS), despite a known impact on physical, chemical microbial reactions which quality. A key parameter influencing soil temperature, influenced by urban heat island effects. This paper provides critique comprehensive summary current knowledge, policies challenges regarding research presents findings from survey international stakeholders....
The optimal function of a water distribution network is reached when the consumer demands are satisfied using lowest quantity energy, maintaining minimal pressure required at same time. One way to achieve this through optimization flow rate injection based on use setpoint curve concept. In order obtain that, methodology proposed. It allows for assessment and head that each pumping station has provide proper functioning while minimum power consumption kept. can be addressed in two ways:...
En el análisis de Sistemas Distribución Agua (SDA) pueden encontrarse distintas metodologías para la determinación Energía que es Potencialmente Recuperable (EPR); sin embargo, éstas suelen aplicarse a redes distribución no consideran pérdidas en red, y cuyo control se realiza configurando los dispositivos instalados determinando valores potenciales recuperación energía considerando determinados criterios servicio. cuanto al cada nodo red asociado Consumos Dependientes Presión (CDP), existen...
This paper presents a modified Shuffled Frog Leaping Algorithm (SFLA) applied to the design of water distribution networks. Generally, one major disadvantages traditional SFLA is high number parameters that need be calibrated for proper operation algorithm. A method calibrating these presented and three benchmark medium-sized networks widely known in literature (Hanoi, New York Tunnel, GoYang). For each problems, over 35,000 simulations were conducted. Then, statistical analysis was...
Drainage networks are civil constructions which do not generally attract the attention of decision-makers. However, they crucial importance for cities; this can be seen when a city faces floods resulting in extensive and expensive damage. The increase rain intensity due to climate change may cause deficiencies drainage built certain defined flows incapable coping with sudden increases, leading floods. This problem solved using different strategies; one is adaptation network through...
This work considers the behaviour of air inside pipes when is expelled through valves. Generally, shows isothermal behaviour. Nevertheless, transient very fast, it adiabatic In a real installation, an intermediate evolution between these two extreme conditions occurs. Thus, verified that results vary significantly depending on hypothesis adopted. To determine pressure pocket, most unfavourable (isothermal behaviour) typically from perspective water hammer takes place column arrives at valve...
The Storm Water Management Model (SWMM) is a dynamic simulation engine of flow in sewer systems developed by the USEPA. It has been successfully used for analyzing and designing both storm water waste systems. However, despite including some interfacing functions, these functions are insufficient certain simulations. This paper describes new that have added to existing ones form library (Toolkit). Toolkit presented here will allow direct modification network data during without need access...
This paper presents a mathematical model for analyzing the emptying process in pipeline using pressurized air. The rigid water column (RWCM) is used to analyze transient phenomena that occur during of pipeline. air-water interface also computed proposed model. applied along 271.6-m-long PVC-steel with 232-mm internal diameter. boundary conditions are given by high-pressure air tank at upstream end and manual butterfly valve downstream end. solution was carried out computer modeling program....
For humankind to survive, access sufficient and safe drinking water is fundamental. This study explores the connection between rising domestic consumption planetary phenomena, such as rapid population growth, climate change, pandemics. To achieve study’s objectives, it provides a thorough forecast of use, considering probable global scenarios for years 2030 2050. The modeling approach adapted from consistent case taken body scientific literature on supply hydraulics. results highlight...
EPANET is probably the most widespread model for water distribution network (WDN). More than twenty years after its appearance, it has become a global reference both hydraulic and quality analysis of networks. In 2000, 2 appears, which includes as important computational feature new Toolkit. This toolkit was library functions allowing modification data reading results without access to appropriate files. Over time, use this been communication protocol every application developers who method...
The analysis of transient flow is necessary to design adequate protection systems that support the oscillations pressure produced in operation motor elements and regulation. Air valves are generally used pressurized water pipes manage air inside them. Under certain circumstances, they can be as an indirect control mechanism hydraulic transient. Unfortunately, one major limitations reliability information provided by manufacturers vendors, which why experimental trials usually characterize...
The drainage networks of our cities are currently experiencing a growing increase in runoff flows, caused mainly by the waterproofing soil and effects climate change. Consequently, originally designed correctly must endure floods with frequencies much higher than those considered design phase. solution such problem is to improve network. There several ways rehabilitate network: conduit substitution as former method or current methods storm tank installation combined use installation. To find...
In recent years, there has been an increase in the frequency of urban floods as a result three determinant factors: reduction systems’ capacity due to aging, changing environment that resulted alterations hydrological cycle, and permeability watersheds growth. Due this, question every area must answer is: Are we ready face these new challenges? The renovation all pipes compose drainage system is not feasible solution, and, therefore, use solutions increasing trend, leading operational...
The control system’s point is to bring the pumping curve close set-point curve. That concept essential for proper design of a station. An adequate focused not only on selecting total number pumps and type use (flow or pressure), but it also important determine optimal fixed speed (FSPs) variable (VSPs) each flow rate. This work discusses most common methods procedures systems stations with proposed methodology. methodology consists expressing characteristics in dimensionless form so that...
Pumping station (PS) designs in water networks basically contemplate technical and economic aspects. Technical aspects could be related to the number of pumps PS operational modes PS. Meanwhile, all costs that intervene a design, such as investment, maintenance costs. In general, network are usually focused on optimizing or investment costs, However, some subjective have not been approached, determining most suitable pump model, complexity control system operation design. Therefore, present...
This paper presents a methodology for optimizing the operations of water distribution networks. The combines use best management practices with pseudogenetic algorithm, and has been applied to solve problem battle background leakage assessment involves more than 70,000 decision variables. To reduce this number, was divided into three steps. First, preliminary analysis performed define criteria replacement pipes pumps definition potential subareas. Then, an optimization model used determine...
The optimal sizing in water distribution networks (WDN) is of great interest because it allows the selection alternative economical solutions that ensure design requirements at nodes (demands and pressure) lines (velocities). Among all available methodologies, this work analyzes those based on evolutionary algorithms (EAs). EAs are a combination deterministic random approaches, performance algorithm depends searching process. Each EA features specific parameters, proper calibration helps to...
One of the main concerns in many cities is need to rehabilitate or expand their drainage systems. Increasing rainfall intensities related with climate change, uncontrolled growth and excessive waterproofing causes that original networks design have became insufficient. Inadequate make necessary develop rehabilitation models existing networks. This should be compatible them. paper presents an optimization methodology generate different solutions for network improvement. uses as starting point...
The paper presents a solution to the problem of Battle Background Leakage Assessment for Water Networks (BBLAWN) using methodology that combines use Best Management Practices (BMPs) and an optimization model based on Pseudo-Genetic Algorithm (PGA) as described in [1]. In first stage, analysis marginal costs pipes whose replacement would be potentially recommended was performed. Next, network topological study could closed order facilitate pressure control done. Furthermore, studying branched...
This work aims to study in detail the methods of experimental characterization air valves. In first part, different techniques are compared measurements made Air Valves Test Bench built by Bermad CS at its factory Evron (Israel). The second part deals with a collection commercial valves from manufacturers. Finally, Wylie and Streeter discharge coefficient Cd for valve [1] has been obtained. results have also simplified proposed model representation valve.
In recent years, a significant increase in the number of extreme rains around world has been observed, which caused an overpressure urban drainage networks. The lack capacity to evacuate this excess water generates need rehabilitate systems. There are different rehabilitation methodologies that have proven their validity; one most used is heuristic approach. Within approach, use genetic algorithms stood out for its robustness and effectiveness. However, problem be overcome by approach large...
The cost of pumping is one the most significant operational expenditures in a water distribution network. When network has multiple sources, which are associated with stations, it may be possible to optimize those costs. One way minimize costs determine optimal flow rate for each station and every point temporal demand curve, while keeping energy minimized. This also requires that required minimum pressure at critical satisfied. paper introduces principle known as setpoint curve key...