Exploració per autor "Serra, Maria"
Ara es mostren els items 39-58 de 73
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Model predictive control for ethanol steam reformers with membrane separation
(2017-01-26)
Article
Accés obertThis paper focuses on the dynamic modelling and the predictive control of an ethanol steam reformer (ESR) with Pdsingle bondAg membrane separation stage for the generation of pure hydrogen. Hydrogen purity necessary to ... -
Modeling and control of HTPEMFC based combined heat and power for confort control
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertIn this work the dynamic model of a domestic heating system is described. The heating system is based on a High Temperature PEM Fuel Cell. The model corresponds to a home placed in the city of Barcelona. The set of equations ... -
Modelización y gestión térmica de una pila de combustible SOFC
(2017)
Text en actes de congrés
Accés obert
Realitzat a/amb: Balart EnginyersIn the present work, a dynamic lumped parameter model of the electrochemical and thermal behavior of a Solid Oxide Fuel Cell (SOFC) has been developed. The model is implemented in the MATLAB-Simulink visual programming ... -
Modelling and estimation of vanadium redox flow batteries: a review
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-09-08)
Article
Accés obertRedox flow batteries are one of the most promising technologies for large-scale energy storage, especially in applications based on renewable energies. In this context, considerable efforts have been made in the last few ... -
Modelling and operation strategy approaches for on-site hydrogen refuelling stations
(Elsevier, 2023-09-01)
Article
Accés obertThe number of Fuel Cell Electric Vehicles (FCEVs) in circulation has undergone a significant increase in recent years. This trend is foreseen to be stronger in the near future. In correlation with the FCEVs market increase, ... -
Modelling of solid oxide electrolizer and hydrogen leak estimation
(2019)
Text en actes de congrés
Accés obertSolid Oxide Elecyrolizers (SOEC) are electrochemical devises that produce hydrogen from water using the energy of an electric power source. SOEC operate at high temperatures (around 800ºC) and have efficiencies around 53% ... -
Nonlinear adaptive observation of the liquid water saturation in polymer electrolyte membrane fuel cells
(2021)
Article
Accés obertEfficiency, reliability and lifetime of polymer electrolyte membrane fuel cells (PEMFCs) are significantly limited by inadequate water management. High-performance water active control algorithms cannot be implemented due ... -
Nonlinear distributed parameter observer design for fuel cell systems
(2015-09-14)
Article
Accés obertThis paper presents the development of a nonlinear state observer to estimate the different gas species concentration profiles in a Proton Exchange Membrane Fuel Cell energy system. The selection of the estimated states ... -
Nonlinear model predictive control for hydrogen production in an ethanol steam reformer with membrane separation
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés obertThis paper presents a new Nonlinear Model Predictive Control (NMPC) design for an Ethanol Steam Reformer with Pd-Ag membrane separation stage. The reformer is used to produce pure hydrogen able to feed a Proton Exchange ... -
Nonlinear model predictive control methodology for efficiency and durability improvement in a fuel cell power system
(2016)
Text en actes de congrés
Accés obertThe main contribution of this work is the improvement of the efficiency of a PEMFC power system while guaranteeing conditions that also improve its durability. Adopting the NMPC scheme with the distributed parameter model ... -
Nonlinear observation in fuel cell systems: a comparison between disturbance estimation and High-Order Sliding-Mode techniques
(2016-11-16)
Article
Accés obertThis paper compares two Nonlinear Distributed Parameter Observers (NDPO) for the observation of a Proton Exchange Membrane Fuel Cell (PEMFC). Both NDPOs are based on the discretisation of distributed parameters models and ... -
Nonlinear observer for online concentration estimation in vanadium flow batteries based on half-cell voltage measurements
(Elsevier, 2024-06)
Article
Accés obertThis paper presents a nonlinear observer to estimate the active species concentrations in vanadium flow batteries. To conduct the estimation, the observer relies only on current, flow rate and two half-cell voltage ... -
Nonlinear predictive control for durability enhancement and efficiency improvement in a fuel cell power system
(2016)
Article
Accés obertIn this work, a nonlinear model predictive control (NMPC) strategy is proposed to improve the efficiency and enhance the durability of a proton exchange membrane fuel cell (PEMFC) power system. The PEMFC controller is based ... -
Nonlinear predictive control for the concentrations profile regulation in a PEM fuel cell anode gas channel
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés obertIn this work, a nonlinear model predictive control (NMPC) strategy is proposed to regulate the concentrations of the different gas species inside a Proton Exchange Membrane Fuel Cell (PEMFC) anode gas channel. The purpose ... -
Nonlinear predictive control for the concentrations profile regulation under unknown reaction disturbances in a fuel cell anode gas channel
(2015-05)
Article
Accés obertIn this work, a nonlinear model predictive control (NMPC) strategy is proposed to regulate the concentrations of the different gas species inside a Proton Exchange Membrane Fuel Cell (PEMFC) anode gas channel. The purpose ... -
Numerical Model for Polymer Electrolyte Membrane Fuel Cells with Experimental Application and Validation
(2009)
Article
Accés obertThe 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 electrochemically active surface area in a proton exchange membrane fuel cell
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés obertIn this paper a methodology for the estimation of the Electrochemically active Surface Area (ECSA) of a Proton Exchange Membrane Fuel Cell (PEMFC) is developed. Specifically, the ECSA in the Cathode Catalyst Layer (CCL) ... -
Observation of the internal states of a PEMFC anode gas channel
(2013)
Text en actes de congrés
Accés obertIn 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 ... -
Order reduction of a distributed parameter PEM fuel cell anode gas channel model
(2014)
Comunicació de congrés
Accés obertDistributed parameter modeling is required to accurately consider space variations, which are important regarding the performance and durability of the Proton Exchange Membrane Fuel Cells (PEMFC) [1-3]. However, the number ... -
Parameter fitting of a reversible solid oxide stack model
(2022)
Text en actes de congrés
Accés obertIn this work, the fitting of five parameters of a Reversible Solid Oxide (RSO) stack model is done based on data obtained at different conditions of operation. Two types of experimental curves are used: polarization curves ...
