Now showing items 1-20 of 20

  • Chattering free high order sliding mode observer for estimation of liquid water fraction in a proton exchange membrane fuel cell 

    Luna, Julio; Costa Castelló, Ramon (2018)
    Conference report
    Restricted access - publisher's policy
    In this work, a methodology for the estimation of the liquid fraction of a proton exchange membrane fuel cell (PEMFC) is developed. Specifically, a model-based chattering- free high order sliding mode (CHOSM) observer is ...
  • Comparative LCA of stand-alone power systems applied to remote cell 

    Olmeda Noguera, Eduardo (Universitat Politècnica de Catalunya, 2014-06-27)
    Master thesis
    Open Access
    Covenantee:  Purdue University
    Remote cell towers need on-site power generation or stand-alone power systems for operation and, traditionally, diesel electric generators have been used as backup power systems in combination with renewable energies. ...
  • Control adaptatiu d'una pila PEM de càtode obert 

    Cecilia Piñol, Andreu (Universitat Politècnica de Catalunya, 2017-06-15)
    Bachelor thesis
    Open Access
    En aquest projecte es dissenya un observador capaç d’estimar la saturació d’aigua líquida a la capa catalítica d’una pila de combustible de tipus PEM. En els primers apartats es presenta al lector la idea de la pila de ...
  • Development of control systems and state observers for efficiency and durability improvement in PEM fuel cell based systems 

    Luna Pacho, Julio Alberto (Universitat Politècnica de Catalunya, 2017-02-27)
    Doctoral thesis
    Open Access
    Proton exchange membrane (PEM) fuel cells, which use hydrogen as fuel, provide high power densities while operating at lower temperatures, reducing the cost of materials and maintenance. PEM fuel cells are suitable for a ...
  • Efficient Predictive Control for polytopic systems: application to the four-tank system 

    Acevedo Valle, Juan Manuel (Universitat Politècnica de Catalunya, 2014-06)
    Master thesis
    Restricted access - author's decision
    The present work proposes to develop a Fault Tolerant Control strategy based on Robust Efficient Predictive Control for non-linear systems that can be modeled using a polytopic model. The proposed Efficient Predictive ...
  • Energy management strategy for a bioethanol isolated hybrid system: simulations and experiments 

    Rullo, Pablo Gabriel; Costa Castelló, Ramon; Roda Serrat, Vicente; Feroldi, Diego Hernán (2018-05-28)
    Article
    Open Access
    Renewable energy sources have significant advantages both from the environmental and the economic point of view. Additionally, renewable energy sources can contribute significantly to the development of isolated areas that ...
  • Fault estimation using a Takagi-Sugeno interval observer: Application to a PEM fuel cell 

    Martínez García, C; Puig Cayuela, Vicenç; Astorga, C (2017)
    Conference report
    Restricted access - publisher's policy
    Fault estimation plays an important role in the fault diagnosis system since provides information about the fault magnitude and temporal evolution. In this paper, we present an approach that allows to obtain a simultaneous ...
  • High temperature proton exchange membrane fuel cells control for combined heat and power applications 

    Quintana Griera, David (Universitat Politècnica de Catalunya, 2018-09-10)
    Bachelor thesis
    Open Access
    The aim of this project is designing and implementing control strategies for high temperature proton exchange membrane ( 1,2 ) fuel cells to be used in residential applications generating both heat and electrical power. ...
  • Inkjet printing in polymer electrolyte membrane electrolysis 

    Bach Valls, Antoni (Universitat Politècnica de Catalunya / University of Alberta, 2016)
    Master thesis
    Open Access
    In proton exchange membrane fuel cells (PEFCs), the catalyst and electrolyte loading have been shown to have an important effect in the performance and efficiency of the device. On the contrary, literature analyzing ...
  • Modelado y control de una pila de combustible tipo PEM de alta temperatura utilizada en cogeneración para el autoabastecimiento de una vivienda 

    Gayet Del Estal, Sergio (Universitat Politècnica de Catalunya, 2017-09-13)
    Bachelor thesis
    Open Access
    En este trabajo se pretende diseñar un sistema de control basado en una pila tipo PEM de alta temperatura para gestionar el confort de una vivienda.
  • Modelado y diseño de un sistema de refrigeración para una pila PEM de alta temperatura 

    Sauqué Sala, David (Universitat Politècnica de Catalunya, 2016-05-02)
    Bachelor thesis
    Open Access
    El proyecto trata sobre el modelado, diseño y control de un sistema de refrigeración para una pila de combustible con membrana de intercambio protónico de alta temperatura (HT- PEMFC, por sus siglas en inglés). El proyecto ...
  • Modelització i control d'un reformador d'etanol amb vapor 

    Pérez Contreras, Eloi (Universitat Politècnica de Catalunya, 2015-09)
    Master thesis (pre-Bologna period)
    Open Access
    En el Projecte Final de Carrera (PFC) que es presenta a continuació, s’obté un nou disseny d’un controlador predictiu no lineal (NMPC: Nonlinear Model Predictive Control ) per a un reformador d’Etanol amb Vapor (ESR: Ethanol ...
  • Modelling and analysis of the hydrogen flow in a PEM feeding channel 

    Flamarique Canellas, Marina (Universitat Politècnica de Catalunya, 2018-01-18)
    Bachelor thesis
    Open Access
    This project describes the modelling and the following simulations of the hydrogen feeding channel of a PEM fuel cell. Two processes are done, which are related: the filling of the system and the ejection of the gas that ...
  • Model Predictive Control for Ethanol Steam Reformers 

    Li, Mingming (Universitat Politècnica de Catalunya, 2014-06)
    Master thesis
    Restricted access - author's decision
    This thesis firstly proposes a new approach of modelling an ethanol steam reformer (ESR) for producing pure hydrogen. Hydrogen has obvious benefits as an alternative for feeding the proton exchange membrane fuel cells ...
  • Performance and degradation of proton exchange membrane fuel cells: State of the art in modeling from atomistic to system scale 

    Jahnke, T.; Futter, G.; Latz, A.; Serra, Maria (2016)
    Article
    Open Access
    Proton Exchange Membrane Fuel Cells (PEMFC) are energy efficient and environmentally friendly alternatives to conventional energy conversion systems in many yet emerging applications. In order to enable prediction of their ...
  • Simulation of the cooperation of alternative sources of energy to supply electric power 

    Estapé Grau, Alba (Universitat Politècnica de Catalunya / Kauno Technologijos Universitetas, 2014)
    Bachelor thesis
    Open Access
    The “Simulation of the cooperation of alternative sources of energy to supply electric power” has as a main objective modelling a Proton Exchange Membrane Fuel Cell in Matlab/Simulink in order to investigate its performance ...
  • State Observers Design for PEMFC Systems 

    Luna Pacho, Julio Alberto (Universitat Politècnica de Catalunya, 2014-06)
    Master thesis
    Restricted access - author's decision
    A series of nonlinear state observers are developed to estimate unmeasurable variables in a Proton Exchange Membrane Fuel Cell (PEMFC) system. A study of the most relevant variables to estimate which will improve the e ...
  • Temperature control of open-cathode PEM fuel cells 

    Strahl, Stephan; Costa Castelló, Ramon (2017-07-01)
    Article
    Open Access
    Proper temperature control of Proton Exchange Membrane (PEM) Fuel Cells is a crucial factor for optimizing fuel cell performance. A robust temperature controller is required for optimal water management of PEM fuel cells. ...
  • Temperature control of open-cathode PEM fuel cells. 

    Strahl, Stephan; Costa Castelló, Ramon (Elsevier, 2017)
    Conference report
    Open Access
    Proper temperature control of Proton Exchange Membrane Fuel Cells is a crucial factor for optimizing fuel cell performance. This paper describes a model-based characterization of the equilibrium points of an open-cathode ...
  • Uso de pilas de combustible PEM de alta temperatura en una aplicación de cogeneración para aplicaciones de confort 

    Quintana Griera, David; Sanz López, Víctor; Costa Castelló, Ramon; Batlle Arnau, Carles (2018)
    Conference report
    Restricted access - publisher's policy
    Debido a la importancia a escala mundial de la escasez de energía y los efectos del cambio climático están emergiendo alternativas a las fuentes de energía clásicas como los combustibles fósiles y las centrales de energía ...