Idel Montalvo

Idel Montalvo
Ingeniousware GmbH

PhD

About

126
Publications
18,962
Reads
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1,533
Citations
Education
January 2008 - March 2011
Universitat Politècnica de València
Field of study
  • Water Distribution System Optimization
January 2008 - September 2009
Universitat Politècnica de València
Field of study
  • Hydraulic Engineering
September 1997 - June 2002

Publications

Publications (126)
Conference Paper
Full-text available
Water demand increases in urban zones, and water scarcity is associated with maintenance problems, such as leakage and pipe ageing, which inevitably lead to complex water distribution systems (WDS) management. In this scenario, intermittent operation emerges as an alternative for system operation. This is not the most desirable solution from a soci...
Conference Paper
Full-text available
The digital transformation of water utilities is not optional anymore but the scope of digitalization certainly differs from one company to another. However, even for small utilities or utilities with limited budgets, there are plenty of options for creating value based on digitalization. This paper explores the steps taken in the city of Pamplona,...
Conference Paper
Full-text available
To detect contaminant intrusion and, in general, to assess quality problems in their water distribution systems, water utilities need quality sensors that continuously measure, directly from the network, conductivity, PH, concentration of different substances, and other related parameters. Due to the nature of the objectives involved, the decision...
Article
Full-text available
Water distribution system monitoring is currently carried out using advanced real-time control technologies to achieve a higher operational efficiency. Data analysis techniques can be implemented for condition estimation, which are crucial tools for managing, developing, and operating water networks using the monitored flow rate and pressure data a...
Article
To detect contaminant intrusion and, in general, to assess quality problems in their water distribution systems, water utilities need quality sensors that continuously measure, directly from the network, conductivity, PH, concentration of different substances, and other related parameters. Due to the nature of the objectives involved, the decision...
Article
Full-text available
Nowadays, optimal sensor placement (OSP) for leakage detection in water distribution networks is a lively field of research, and a challenge for water utilities in terms of network control, management and maintenance. How many sensors to install and where to install them are crucial decisions to make for those utilities to reach a trade-off between...
Article
This work presents a multi-criteria-based approach to automatically select specific non-dominated solutions from a Pareto front previously obtained using multi-objective optimization to find optimal solutions for pump control in a water supply system. Optimal operation of pumps in these utilities is paramount to enable water companies achieving ene...
Conference Paper
Full-text available
This contribution focuses on the problem of optimal pump scheduling, a fundamental element in pursuing operation optimization of water distribution systems. A combined approach of multi-objective optimization and multi-criteria analysis is herein suggested to first find the Pareto front of non-dominated solutions and then to rank them based on a se...
Article
The BATtle of the Attack Detection ALgorithms (BATADAL) is the most recent competition on planning and management of water networks undertaken within the Water Distribution Systems Analysis Symposium. The goal of the battle was to compare the performance of algorithms for the detection of cyber-physical attacks, whose frequency increased in the pas...
Article
Full-text available
Management of existing systems can be interpreted as sets of decisions to make regarding pumps and valves to create hydraulic conditions able to satisfy the demand without operational problems such as pressures lower or higher than the normative pressure values. However, among the large number of combinations, some of them manage to reduce energy c...
Chapter
Agent Swarm Optimization is a framework that combines the use of evolutionary algorithms, data mining, modeling and other techniques to find the best compromises among objectives in complex decision problems. It has been applied mainly in engineering cases where using classic optimization algorithms would require undesired simplifications of the pr...
Chapter
In the future, production systems and information technology will merge, providing new ways for data processing and analysis. Still, the current situation is that for different production environments, different IT infrastructures exist. This makes data gathering, fusion and analysis process an elaborate work or even unfeasible. Hence, this paper p...
Article
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This paper considers the sectorization of a large water distribution network into district metered areas (DMAs) and simultaneously optimizes rehabilitation of the network with new pipes, control valves, and storage tanks. Because available water resources are much lower in the dry season, both the design and operational settings are optimized to sa...
Conference Paper
Full-text available
Water is an indispensable resource for human and economical welfare, and modern society depends on complex, interconnected infrastructures to provide safe water to consumers. Given this complexity, efficient numerical techniques are needed to support optimal control and management of water distribution systems (WDSs). This document is intended to b...
Conference Paper
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This document is intended to be a presentation of session ST36 of CMN2017, placing this session in the appropriate context to understand its motivation and guide its content. The circumstances that occurred in 2016 have led the session to become a posthumous tribute to Rafael Pérez García who died on October 7, 2016. This document also presents con...
Conference Paper
Full-text available
Leak detection and isolation (LDI) is a problem of interest for water management companies and their technical staff. Main reasons for this are that early detection of leakages can reduce dramatically (1) water losses in urban networks and (2) the environmental burden due to wasted energy used in the system supply [1]. Water leakage can become a ve...
Conference Paper
Full-text available
Water quality sensors help utilities to detect contaminant intrusion and to assess quality problems in water distribution systems by continuously measuring conductivity, PH, concentration of different substances and other related parameters directly from the network. Deciding where to place sensors in the network and how many of them should be plac...
Conference Paper
Full-text available
Water utilities cannot operate on the basis of a regular business aiming at just increasing sales to increase revenue. They rather have to discourage demand for the sake of environmental and resource sustainability. But, how to discourage demand without affecting the financial viability of utilities, while keeping a high standard service? It is one...
Conference Paper
Full-text available
Metering is an essential activity in Water Distribution Systems. Not only the utility revenue clearly is proportional to the metered values, but also the evaluation of the performance of the network relies on it. Both the input volume in the network and the metered consumption are normally not measured simultaneously. As a consequence, to calculate...
Conference Paper
Full-text available
Dealing with real world engineering problems, often comes with facing multiple and conflicting objectives and requirements. Water distributions systems (WDS) are not exempt from this: while cost and hydraulic performance are usually conflicting objectives, several requirements related with environmental issues in water sources might be in conflict...
Conference Paper
Water distribution systems are critical infrastructures that can be the subject of various types of attacks. Concerns range from biological and chemical intrusions in pipelines to operational issues in water control assets. Cyber-attacks have also turned today into a crucial issue to consider. In highly automatized infrastructures, cyber-attacks ca...
Article
Full-text available
Water Supply Network (WSN) sectorization is a broadly known technique aimed at enhancing water supply management. In general, existing methodologies for sectorization of WSNs are limited to assessment of the impact of its implementation over reduction of background leakage, underestimating increased capacity to detect new leakage events and undermi...
Conference Paper
One of the biggest challenges in utility management today is to guarantee financial viability while dealing with high fix costs in infrastructure without increasing sales significantly for the sake of environmental protection and the limitations associated to water scarcity. Maintaining high standard services under these conditions requires intelli...
Article
Full-text available
The core idea behind sectorization of Water Supply Networks (WSNs) is to establish areas partially isolated from the rest of the network to improve operational control. Besides the benefits associated with sectorization, some drawbacks must be taken into consideration by water operators: the economic investment associated with both boundary valves...
Article
Full-text available
The security of drinking water is increasingly being recognized as a major challenge for municipalities and water utilities. In the event of a contamination, water spreads rapidly before the problem is detected. Contaminated drinking water can induce major epidemics, disrupt economic life and create mass panics. SAFEWATER is an EU-funded project th...
Article
Full-text available
Analysing water networks online should not be constrained to classic hydraulic simulations. Including other processes can give a much better global view of what is happening in the network. Water quality modelling [1], event detection [2] or online source identification [3], for example, are some of the processes that can be considered as part of a...
Article
Computational modeling pervades virtually every industrial process. By using numerical representations of the behavior of elements that constitute a system it is possible to obtain efficient and safe designs. Moreover, system operation can be better defined by using such models, thus enabling greater reliability and control. In this paper the use o...
Article
Selecting the most appropriate heuristic for solving a specific problem is not easy, for many reasons. This article focuses on one of these reasons: traditionally, the solution search process has operated in a given manner regardless of the specific problem being solved, and the process has been the same regardless of the size, complexity and domai...
Article
Full-text available
Developing fast calibration algorithms is an important step towards the online simulation of hydraulic water networks. The objective of this paper is to report a new demand calibration approach by using algorithms from control theory. We propose a multivariable PID control where the control parameters are identified by a system identification appro...
Article
Full-text available
The proper estimation and regular update of model parameters is crucial for the actuality of a mathematical simulation model representing the hydraulics and water quality of a real physical water distribution system. Especially, when the model is running online, uncertainties in model parameters can result in large discrepancies between model predi...
Article
A novel methodology to sectorize water supply networks (WSNs) depending on a main transmission line is presented in this paper. The methodology is based on concepts derived from the social network theory and graph theory (namely, community detection and shortest path respectively); and also on a multi-objective optimization process by means of agen...
Article
The flexibility introduced by evolutionary algorithms (EAs) has allowed the use of virtually arbitrary objective functions and constraints-even when evaluations require, as for real-world problems, running complex mathematical and/or procedural simulations of the systems under analysis. Even so, EAs are not a panacea. Traditionally, the solution se...
Article
Full-text available
Water Distribution Networks contain lots of quality sensors placed in the network. Generally, the analysis of this sensor data, e.g. to check for contaminations, is performed manually by the operators and not by data-driven methods. This has several reasons: First, the parameterization of these methods is time consuming; second, many false positive...
Article
Full-text available
Data mining solutions can be applied in combination with evolutionary algorithms to extract relevant information from solution spaces analyzed during optimization processes regarding water distribution system (WDS) design. Firstly, results from data mining can be introduced into the evolutionary algorithms to guide the search of solutions. Secondly...
Article
Full-text available
The evolution of technologies of informatics and telecommunications has improved significantly the way water distribution systems can be managed. The use of quasi real-time information is becoming a desired standard in many water utilities. Nevertheless, tools for water distribution system analysis and for supporting decision making haveńt been int...
Article
Full-text available
In this paper, the concept of graph decomposition is used for simplification and enhancement of solution algorithms for different problems related to water supply network security and management. Three examples including sensor placement, source identification and decision support for response actions are presented. The decomposition concept can be...
Conference Paper
Full-text available
RESUMEN Los modelos matemáticos de las redes de distribución de agua hacen uso de simplificaciones destinadas a optimizar el desarrollo y el uso de tales modelos. Los modelos simplificados son utilizados sistemáticamente por los servicios de agua, a menudo sin el conocimiento de las implicaciones de las hipótesis utilizadas. Algunas simplificacione...
Data
Protection of Water Distribution Networks (WDNs) against contamination events has a paramount importance. Either deliberate or accidental contamination of these infrastructures has strong negative consequences from both social and economical point of view. The project SMaRT-OnlineWDN aimed to develop methods and software solutions 1) to detect cont...
Data
Full-text available
Water distribution system modeling in real time involves many challenges for water utilities. Calibration of models to match measurements coming from a water network with calculation resulting from models is a necessary step to make models reliable. There are many variables involved in the analysis of a water distribution system and each of them co...
Conference Paper
Full-text available
Protection of Water Distribution Networks (WDNs) against contamination events is of paramount importance. Either deliberate or accidental contamination of this infrastructure has strong negative consequences from both social and economical points of view. The project SMaRT-OnlineWDN aims to develop methods and software solutions to 1) detect contam...
Conference Paper
Full-text available
Water distribution system modeling in real time involves many challenges for water utilities. Calibration of models to match measurements coming from a water network with calculation resulting from models is a necessary step to make models reliable [1]. There are many variables involved in the analysis of a water distribution system and each of the...
Conference Paper
Full-text available
Online-Simulation of water distribution networks allows for estimating the current state of the entire network in near real-time. Measurement data coming from sensors at selected positions in the real network are used for driving a mathematical simulation model. Therefore the information gained from the measurements is extended and covers the whole...
Conference Paper
Full-text available
Drinking water distribution networks risk exposure to malicious or accidental contamination. Several levels of responses are conceivable. One of them consists of installing a sensor network to monitor the system in real time. Once a contamination has been detected, it is also important to take appropriate counter-measures. The SMaRT-OnlineWDN proje...
Article
Optimal design of water distribution systems (WDSs), including the sizing of components, quality control, reliability, renewal, and rehabilitation strategies, etc., is a complex problem in water engineering that requires robust methods of optimization. Classical methods of optimization are not well suited for analyzing highly dimensional, multimoda...
Chapter
Mathematical models that describe the complex behavior of water distribution systems are bound to use various simplifications. Simplified models are used systematically in management, monitoring, and understanding of water utilities, sometimes without any awareness of the implications of the assumptions used. One of the reasons for that complexity...
Article
Full-text available
Integrating near real-time measurements with online simulation algorithms is a great improvement for better operation and control of large Water Distribution Systems. This paper is focused on the development of a software component aimed to manage the behavior of different online calculation algorithms by controlling the information flow in an onli...
Article
This paper uses a multi-agent approach as a quick and easy tool for the interpretation and analysis of the characteristics of Water Supply System (WSS) components when working on a collection of Ground Penetrating Radar (GPR) survey files. The multi-agent algorithm proposed in this paper has been developed in Matlab and is based on Game Theory. The...
Article
Full-text available
Mathematical modeling of water distribution networks makes use of simplifications aimed to optimize the development and use of the mathematical models involved. Simplified models are used systematically by water utilities, frequently with no awareness of the implications of the assumptions used. Some simplifications are derived from the various lev...