Now showing items 21-33 of 33

    • Fault-tolerant MPC control of PEM fuel cells 

      Puig Cayuela, Vicenç; Feroldi, Diego Hernán; Serra, Maria; Quevedo Casín, Joseba Jokin; Riera, Jordi (Riera Colomer) (IFAC, 2008)
      Conference report
      Restricted access - publisher's policy
      In this paper, fault-tolerant MPC control of PEM fuel cells is addressed. MPC is a suitable control methodology to control fuel cell systems because of their multivariable and complex behaviour. Additionally, MPC is one ...
    • Identification of partially known models of the Susqueda hydroelectric power plant 

      Quiroga, Óscar Daniel; Riera, Jordi (Riera Colomer); Batlle Arnau, Carles (Universidad Nacional del Sur, 2003-10)
      Article
      Open Access
      This paper presents the identification of a hydroelectric power turbine dynamics. Knowledge of power plant behaviour is fundamental to obtain reliable and efficient operation of power systems. Starting from models already ...
    • Numerical Model for Polymer Electrolyte Membrane Fuel Cells with Experimental Application and Validation 

      Alonso Mora, Javier; Husar, Attila Peter; Serra, Maria; Riera, Jordi (Riera Colomer) (2009)
      Article
      Open Access
      The aim of this paper is to present a simple 3D computational model of a Polymer Electrolyte Membrane Fuel Cell (PEMFC) that simulates over time the heat distribution, energy and mass balance of the reactant gas flows in ...
    • Observation of the internal states of a PEMFC anode gas channel 

      Luna Pacho, Julio Alberto; Batlle Arnau, Carles; Kunusch, Cristian; Riera, Jordi (Riera Colomer); Sarmiento Carnevali, María Laura; Serra, Maria (2013)
      Conference report
      Open Access
      In this work a non-linear, model-based state observer is developed. Dynamics of the system described by a distributed parameter, partial differential equations model. Forward and backward discretization of the model to ...
    • Performance improvement by temperature control of an open-cathode PEM fuel cell system 

      Strahl, Stephan; Perrier, Michel; Husar, Attila Peter; Riera, Jordi (Riera Colomer); Serra, Maria (2013)
      Conference report
      Open Access
      The work presented in this article combines experimental analysis and theoretical studies of temperature effects on the performance of an open-cathode, self-humidified PEM fuel cell system for the design of optimization ...
    • Performance improvement by temperature control of an open-cathode PEM fuel cell system 

      Strahl, Stephan; Husar, Attila Peter; Puleston, Paul Federico; Riera, Jordi (Riera Colomer) (2014-06-01)
      Article
      Restricted access - publisher's policy
      The work presented in this article combines experimental analysis and theoretical studies of temperature effects on the performance of an open-cathode, self-humidified PEM fuel cell system for the design of optimal control ...
    • Performance improvement of a PEMFC system controlling the cathode outlet air flow 

      Feroldi, Diego Hernán; Serra, Maria; Riera, Jordi (Riera Colomer) (Elsevier S.A., 2007)
      Article
      Open Access
      This paper presents a stationary and dynamic study of the advantages of using a regulating valve for the cathode outlet flow in combination with the compressor motor voltage as manipulated variables in a fuel cell system. ...
    • Sliding Mode Strategy for PEM Fuel Cells Stacks Breathing Control Using a Super-Twisting Algorithm 

      Kunusch, Cristian; Puleston, Paul; Mayosky, M A; Riera, Jordi (Riera Colomer) (2009-01)
      Article
      Open Access
      A second-order sliding mode strategy to control the breathing subsystem of a polymer electrolyte membrane fuel cell stack for transportation applications is presented. The controller is developed from a design model of ...
    • Study of hydrogen purge effects on performance and efficiency of a PEM fuel cell system 

      Strahl, Stephan; Husar, Attila Peter; Riera, Jordi (Riera Colomer) (2012)
      Conference report
      Open Access
      Experimental analysis and CFD modeling is used in this work to analyze system efficiency related to hydrogen purge based water management in an open-cathode PEM fuel cell system. Excess water in a deadended anode decreases ...
    • Test de interrupción de la humidificación para la diagnosis en pilas PEM 

      Primucci, Mauricio Ariel; Serra, Maria; Riera, Jordi (Riera Colomer) (APPICE, 2008)
      Conference report
      Open Access
      One of the most demanding research topics related to the Polymer Electrolyte Membrane Fuel Cell concerns its reliability. Apart from the security aspects, it is basic to have a diagnosis of the internal state of the fuel ...
    • Test de interrupción de la humidificación para la diagnosis en pilas PEM 

      Primucci, Mauricio Ariel; Serra, Maria; Riera, Jordi (Riera Colomer) (2008)
      Conference report
      Restricted access - publisher's policy
      Uno de los principales temas de investigación relacionados con las pilas de combustible del tipo de membrana de electrolito polimérico es su fiabilidad. Además de los aspectos de seguridad, es básico hacer una diagnosis ...
    • Topological analysis of powertrains for refusecollecting vehicles based on real routes – Part I: Hybrid hydraulic powertrain 

      Soriano Alfonso, Franciso; Moreno Eguilaz, Juan Manuel; Álvarez Flórez, Jesús Andrés; Riera, Jordi (Riera Colomer) (2016-10-03)
      Article
      Open Access
      In this two-part paper, a topological analysis of powertrains for refuse-collecting vehicles (RCVs) based on the simulation of different architectures (internal combustion engine, hybrid electric, and hybrid hydraulic) on ...
    • Topological analysis of powertrains for refusecollecting vehicles based on real routes – Part II: Hybrid electric powertrain 

      Soriano Alfonso, Franciso; Moreno Eguilaz, Juan Manuel; Álvarez Flórez, Jesús Andrés; Riera, Jordi (Riera Colomer) (2016-10-03)
      Article
      Open Access
      In this two-part paper, a topological analysis of powertrains for refuse-collecting vehicles (RCVs) based on simulation of different architectures (internal combustion engine, hybrid electric, and hybrid hydraulic) on real ...