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Ara es mostren els items 41-60 de 115

    • District Management Areas characterisation in water network based on clustering 

      Pérez Magrané, Ramon; Heras Jiménez, Salvador Augusto de las; Aguilar Martín, Josep; Pascual Pañach, Josep; Peralta, Antoni; Landeros, E (2009-08-27)
      Article
      Accés restringit per política de l'editorial
      The division of a network in different sectors is a usual practice in Water Companies. It improves the management of the network in different senses. Sectors have more homogenous characteristics and need specific cares ...

    • Flow Data Based DMA Characterisation 

      Grau Torrent, Sergi; Pérez Magrané, Ramon (2019)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Data in water companies have been collected since sensors (level, pressure, flow, Temperature, chlorine concentration, etc.) have been gradually introduced. Supervision and control of processes were the first drivers of ...

    • Identifiability and calibration of water network models 

      Pérez Magrané, Ramon (Universitat Politècnica de Catalunya, 2003-07-21)
      Tesi
      Accés obert
      El control i supervisió de processos es basa generalment en la utilització de models. Models que han de ser tan acurats com sigui possible. Processos complexes com les xarxes de distribució d'aigua no escapen d'aquesta ...

    • Leak detection and localization through demand components calibration 

      Sanz Estapé, Gerard; Pérez Magrané, Ramon; Zoran, Kapelan; Savic, Dragan (2016-02-01)
      Article
      Accés obert
      Success in the application of any model-based methodology (e.g., design, control, supervision) highly depends on the availability of a well-calibrated model. The calibration of water distribution networks needs to be ...

    • Leak detection in a DMA, a real application of flow modelling 

      Jiménez, Víctor; Grau Torrent, Sergi; Pérez Magrané, Ramon (2017)
      Text en actes de congrés
      Accés obert
      This paper presents a versatile methodology to calculate parameters that characterise the demand of a DMA. This parameters are used for the leak modelling so that a predictive model is built and trained with historical ...

    • Leak localisation methodology and real applications 

      Quevedo Casín, Joseba Jokin; Puig Cayuela, Vicenç; Pérez Magrané, Ramon (UPC. Departament d'Enginyeria de Projectes i de la Construcció, 2017-06-26)
      Text en actes de congrés
      Accés obert
      The leak localization community is very active and the Research Centre for Supervision, Safety and Automatic Control (CS2AC) is specially implicated in such an important issue. We have developed a methodology for leak ...

    • Leak localization in water networks: a model-based methodology using pressure sensors applied to a real network in Barcelona 

      Pérez Magrané, Ramon; Sanz Estapé, Gerard; Puig Cayuela, Vicenç; Quevedo Casín, Joseba Jokin; Cugueró Escofet, Miquel Àngel; Nejjari Akhi-Elarab, Fatiha; Meseguer, Jordi; Cembrano Gennari, Gabriela; Mirats Tur, Josep Maria; Sarrate Estruch, Ramon (2014-08-01)
      Article
      Accés restringit per política de l'editorial
      The efficient distribution of water is a subject of major concern for water utilities and authorities [1]. While some leaks in water distribution networks (WDNs) are unavoidable, one of the main challenges in improving the ...

    • Leak monitoring 

      Pérez Magrané, Ramon; Cugueró Escofet, Josep; Sanz Estapé, Gerard; Cugueró Escofet, Miquel Àngel; Blesa Izquierdo, Joaquim (Springer, 2017)
      Capítol de llibre
      Accés restringit per política de l'editorial
      This book presents a set of approaches for the real-time monitoring and control of drinking-water networks based on advanced information and communication technologies. It shows the reader how to achieve significant ...

    • Leakage isolation in water distribution networks: a comparative study of two methodologies on a real case study 

      Pérez Magrané, Ramon; Puig Cayuela, Vicenç; Nejjari Akhi-Elarab, Fatiha; Cugueró Escofet, Miquel Àngel; Sanz Estapé, Gerard; Mirats, J.M; Quevedo Casín, Joseba Jokin (IEEE, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial

    • Leakage isolation using pressure sensitivity analysis in water distribution networks: Application to the Barcelona case study 

      Pérez Magrané, Ramon; Puig Cayuela, Vicenç; Pascual Pañach, Josep; Quevedo Casín, Joseba Jokin; Landeros, E.; Peralta, Antoni (2010)
      Text en actes de congrés
      Accés obert
      Leaks are present to some extent in all water-distribution systems. This paper proposes a leakage localisation method based on the pressure measurements and pressure sensitivity analysis of nodes in a network. The ...

    • Leakage localization in water networks using fuzzy logic 

      Sanz Estapé, Gerard; Pérez Magrané, Ramon; Escobet Canal, Antoni (2012)
      Text en actes de congrés
      Accés restringit per acord de confidencialitat
      This paper presents a methodology for leakage localization using FIR (Fuzzy Inductive Reasoning). A real water network situated in Barcelona has been subdivided in zones which could contain a leakage. Two sensors ...

    • Leakage location in water distribution networks based on correlation measurement of pressure sensors 

      Quevedo Casín, Joseba Jokin; Cugueró Escofet, Miquel Àngel; Pérez Magrané, Ramon; Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç; Mirats Tur, Josep Maria (Internatinal Water Association (IWA), 2011)
      Text en actes de congrés
      Accés restringit per acord de confidencialitat
      Leaks are present to some extent in all water-distribution systems. This paper proposes a leakage localisation method based on the pressure measurements and pressure sensitivity analysis of nodes in a water distribution ...

    • Long and short term demand forecast, a real application 

      Grau Torrent, Sergi; Luis, Anna; Saludes Closa, Jordi; Pérez Magrané, Ramon (2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Two of the main purposes of a water supply company are the operation of the network and its planning. One of the critical elements for the planning and the operation is the demand forecast. There are multiple methods for ...

    • Methodology for leakage isolation using pressure sensitivity analysis in water distribution networks 

      Pérez Magrané, Ramon; Puig Cayuela, Vicenç; Pascual Pañach, Josep; Quevedo Casín, Joseba Jokin; Landeros, E.; Peralta, Antoni (2011-07)
      Article
      Accés restringit per política de l'editorial
      This letter proposes a phase-shifted pulse-width modulation (PS-PWM) technique for the flying capacitor (FC) multilevel converter that improves the quality of the line-to-line voltages. In traditional PS-PWM, the line-to-line ...

    • Methodology to detect and isolate water losses in water hydraulic networks: Application to Barcelona water network 

      Quevedo Casín, Joseba Jokin; Pérez Magrané, Ramon; Pascual, Josep; Puig Cayuela, Vicenç; Cembrano Gennari, Gabriela; Peralta, Antoni (IFAC, 2012)
      Text en actes de congrés
      Accés obert
      This paper presents a methodology to detect real water losses in urban water networks. The proposed method is based on the combined use of the DMA economical water balance confidence intervals for a period of time longer ...

    • Model calibration and leakage assessment applied to a real Water Distribution Network 

      Roma, Josep; Pérez Magrané, Ramon; Sanz Estapé, Gerard; Grau Torrent, Sergi (Elsevier, 2015)
      Text en actes de congrés
      Accés obert
      The use of water distribution network models depends highly on the confidence that the operators have on them. Models generated automatically from the Geographical Information System using the hydraulic equations integrated ...

    • Model calibration for leak localization, a real application 

      Sanz, Gerard; Meseguer Amela, Jordi; Pérez Magrané, Ramon (2017)
      Text en actes de congrés
      Accés obert
      The localization of leaks in Water Distribution Networks has a major relevance in terms of environmental and economic efficiency. This localization is generally carried on in situ by human operators using time consuming ...

    • Modelling and simulation of drinking-water networks 

      Pérez Magrané, Ramon; sanz estapé, gerard (Springer, 2017)
      Capítol de llibre
      Accés restringit per política de l'editorial
      This book presents a set of approaches for the real-time monitoring and control of drinking-water networks based on advanced information and communication technologies. It shows the reader how to achieve significant ...

    • Modelling daily water consumption through potential curves. Disaggregating apparent and real losses 

      Grau Torrent, Sergi; Pérez Magrané, Ramon (Taylor & Francis, 2020-05-18)
      Article
      Accés obert
      This paper presents a model, based on potential curves, that describes the behaviour of the inverse of the daily cumulated frequency of the flows provided to a District Metered Area (DMA). The model has two terms, the first ...

    • Modelling enhanced groundwater denitrification in batch micrococosm tests 

      Calderer, M.; Jubany, Irene; Pérez Magrané, Ramon; Martí Gregorio, Vicenç; Pablo Ribas, Joan de (2010)
      Article
      Accés restringit per política de l'editorial
      In the last few years, enhanced in situ denitrification has gained a lot of interest as a reliable bioremediation option to remove nitrate from groundwater. However, denitrification modelling in the subsurface environment ...