Exploració per autor "Serra, Maria"
Ara es mostren els items 21-40 de 73
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Distributed parameter nonlinear state observer with unmatched disturbance estimation for PEMFC systems
(2015)
Text en actes de congrés
Accés obertIn this paper a nonlinear state observer based on a distributed parameter model is proposed for a proton exchange membrane fuel cell (PEMFC). The estimation technique is implemented using a model-based nonlinear observer ... -
Distributed parameter PEMFC model order reduction
(2014)
Comunicació de congrés
Accés obertThis work focuses on obtaining an order-reduced model from a nonlinear single PEMFC model, which incorporates the effects of distributed parameters that are relevant for its proper functioning and performance. The original ... -
Dynamic analysis of an ethanol steam reformer for hydrogen production
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertThe attempt to improve hydrogen quality has motivated research focused solely on the design of reactors for hydrogen production, paying little interest to their modelling and much less attention to its dynamic analysis. ... -
Dynamic modeling and controllability analysis of an ethanol reformer for fuel cell application
(2010-09)
Article
Accés obertThis work presents a controllability analysis of a low temperature ethanol reformer based on a cobalt catalyst for fuel cell application. The study is based on a nonlinear dynamic model of ... -
Electric vehicle charging station based on wind energy: evaluation of the power profile for vanadium redox flow batteries estimation
(2023-09-14)
Article
Accés restringit per política de l'editorialThis paper considers an electric vehicle charging station based on the combination of a wind turbine, as a primary power source, and a vanadium redox flow battery (VRFB), as an energy storage system. The latter plays a key ... -
Electrolinera para vehículos eléctricos: evaluación del perfil de potencia de turbinas eólicas para estimación de parámetros en baterías de flujo redox
(Universidad del Pais Vasco, 2022)
Comunicació de congrés
Accés obertThe generation of electrical energy based on renewable sources is essential to successfully achieve the energy transition. In particular, electric vehicle charging stations must be capable of dispatching high levels of ... -
Energy management strategies based on efficiency map for fuel cell hybrid vehicles
(2009-05)
Article
Accés obertThe addition of a fast auxiliary power source like a supercapacitor bank in fuel cellbased vehicles has a great potential because permits a significant reduction of the hydrogen consumption and an improvement of the vehicle ... -
Energy management strategies for fuel cell-hybrid vehicles
(2008)
Text en actes de congrés
Accés obertThis paper presents an analysis and a comparative study between three new proposed Energy Management Strategies oriented to Fuel Cell-Hybrid Vehicles (FCHVs). The vehicle in study is powered by a fuel cell and a supercapacitor ... -
Energy optimisation and controllability in complex distillation columns
(Universitat Politècnica de Catalunya, 2000-09-12)
Tesi
Accés obertTo extend the knowledge of complex distillation arrangements for the separation of ternary mixtures and make them closer to implementation in industry is the motivation of this thesis work. Some design, operation, and ... -
Enhancing the efficiency and lifetime of a proton exchange membrane fuel cell using nonlinear model-predictive control with nonlinear observation
(Institute of Electrical and Electronics Engineers (IEEE), 2017-08-01)
Article
Accés obertThe aim of this research is to develop and test in a simulation environment an advanced model-based control solution for a proton exchange membrane fuel cell (PEMFC) system. A nonlinear model-predictive control (NMPC) ... -
Estudio de controlabilidad de un proceso de reformado de etanol con vapor para la producción de hidrógeno
(2010)
Text en actes de congrés
Accés restringit per política de l'editorialEn este trabajo hemos modelado un sistema de reformado de etanol con vapor y purificación de monóxido de carbono (CO). Dicho sistema está destinado a alimentar una pila de combustible tipo PEM. A partir del modelo hemos ... -
Experimental control of a methanol catalytic membrane reformer
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-11-06)
Article
Accés obertA simple proportional integral (PI) controller with scheduled gain has been developed and implemented in a catalytic membrane reactor (CMR) to obtain pure hydrogen from a methanol steam reforming process. The controller ... -
Experimental methodology for modeling water diffusion transport in a PEMFC stack with respect to membrane temperature and resistance
(Elsevier, 2008)
Text en actes de congrés
Accés obertThis work proposes an experimental methodology for modeling water diffusion transport in a PEMFC, which is applied to a commercially available fuel cell stack. The effective water vapor diffusion coefficient and its dynamical ... -
Experimental thermal model of a high temperature fuel cell stack
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialHT- PEM fuel cells (operating termperature >100°C), in comparison to PEM fuel cells: have better reaction kinetics; have higher CO tolerance; do not present problems with liquid water formation; and can be used as a CH&P ... -
Fast model predictive control for hydrogen outflow regulation in ethanol steam reformers
(2016)
Text en actes de congrés
Accés obertIn the recent years, the presence of alternative power sources, such as solar panels, wind farms, hydropumps and hydrogen-based devices, has significantly increased. The reasons of this trend are clear: contributing to a ... -
Fault-tolerant MPC control of PEM fuel cells
(IFAC, 2008)
Text en actes de congrés
Accés restringit per política de l'editorialIn 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 ... -
Feasibility analysis of a class of high-order sliding-mode differentiators for redox flow batteries parameter estimation
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Text en actes de congrés
Accés restringit per política de l'editorialThis work presents the preliminary findings of a feasibility study for a class of sliding mode differentiators to be used in an on-line parameter estimation methodology for vanadium redox flow batteries (VRFB). Specifically, ... -
Hydrogen technologies
(Instituto de Carboquímica, 2020-12-22)
Article
Accés obertEl interés por las tecnologías del hidrógeno ha crecido en los últimos años, principalmente porque una economía basada en el hidrógeno puede dar respuesta a los grandes desafíos de la economía global del futuro: seguridad ... -
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 ...
