Browsing by Subject "Piles de combustible"
Now showing items 1-20 of 135
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A new nonlinear observer for liquid water estimation in fuel cells
(Institute of Electrical and Electronics Engineers (IEEE), 2024-05)
Article
Restricted access - publisher's policyFuel cells are electrochemical devices with some internal variables that cannot be measured, but have to be monitored in real-time. That is the case for the liquid water inside the fuel cell catalyst layer. This motivates ... -
A novel energy management strategy for fuel-cell/supercapacitor hybrid vehicles
(2017-07-01)
Article
Open AccessHybrid platforms powered by fuel cell and supercapacitor represent a powertrain with active state-dependent constraints, providing an adverse scenario for the energy management. In these platforms, the performance of the ... -
A novel energy management strategy for fuel-cell/supercapacitor hybrid vehicles.
(Elsevier, 2017)
Conference report
Open AccessHybrid platforms powered by fuel cell and supercapacitor represent a powertrain with active state-dependent constraints, providing an adverse scenario for the energy management. In these platforms, the performance of the ... -
A phenomenological-based dynamic model for a polymer electrolyte membrane fuel-cell humidifier assembly
(2022-11-01)
Article
Open AccessThis paper presents the deduction of a phenomenological-based semi-physical model (PBSM) for the gas humidification in a fuel-cell assembly. Unlike previously published models, the one proposed here includes the momentum ... -
A review of doped lanthanum gallates as electrolytes for intermediate temperature solid oxides fuel cells: From materials processing to electrical and thermo-mechanical properties
(Elsevier, 2016)
Article
Open AccessThe present review is focused on SrO- and MgO-doped lanthanum gallates (LSGMs), specifically in those key aspects related to their implementation as electrolyte for Intermediate Temperature Solid Oxide Fuel Cells. After a ... -
A semi-analytical model for droplet dynamics on the GDL surface of a PEFC electrode
(2015-04)
Article
Open AccessWater management is one of the key factors in Proton Exchange Fuel Cell (PEFC) performance. The water produced within the fuel cell is evacuated through the gas channels, but at high current densities water can block the ... -
A viability study for SOFC combined heat and power Energy systems for buildings
(Universitat Politècnica de Catalunya, 2019-10-09)
Master thesis
Open AccessThe main objective of this work is to develop a software tool to perform an techno-economic feasibility analysis of cogeneration systems for electricity and heat production, based on fuel cell technology (FC-CHP). The ... -
Analyses of energy management strategies for a PEMFC/UC electric vehicle
(2012)
Conference report
Restricted access - publisher's policyIn this paper, two energy management strategies considering the hydrogen consumption of hybrid power sources using a PEM Fuel Cell (FC) and Ultracapacitors (UC) are described and compared. First, the Hybrid Electric ... -
Analysis and evaluation of a fuel cell based automotive vehicle with on-board hydrogen storage
(Universitat Politècnica de Catalunya, 2023-07-19)
Bachelor thesis
Open AccessThis work focuses on the study, analysis and evaluation of a fuel cell-based vehicle with on-board hydrogen storage. To begin with, an analysis will be made of the 3 different types of automobiles that currently exist: ... -
Analysis of droplet dynamics on the GDL surface of a PEM fuel cell cathode
(Universitat Politècnica de Catalunya, 2013-06-28)
Master thesis
Open AccessA fuel cell is an electrochemical device that has the ability to turn the chemical energy in a fuel directly into electricity with high e ciency. Inside the fuel cell, oxidation and reduction electrochemical reactions ... -
Analysis of the use of recycled aluminum to generate green hydrogen in an electric bicycle
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-02-10)
Article
Open AccessThis article proposes using recycled aluminum, generating hydrogen in situ at low pressure, to power a 250 W electric bicycle with a fuel cell (FC), to increase the average speed and autonomy compared to a conventional ... -
Anode-supported SOFC Operated Under Single-chamber Conditions at Intermediate Temperatures
(2011-02-02)
Article
Restricted access - publisher's policyAnode-supported SOFC was fabricated using gadolinia doped ceria (GDC) as the electrolyte (15 lm of thickness), Ni-GDC as the anode and La0.5Sr0.5CoO3 – d-GDC as the cathode. Catalytic activities of the electrodes and ... -
Atomistic simulation of ionic líquids as novel fuel cell electrolytes
(Universitat Politècnica de Catalunya, 2021-08-03)
Master thesis
Restricted access - author's decision
Covenantee: École centrale de NantesThe study behind this thesis has been carried on by a cooperation between the Electrochemical Process Engineering (IEK-14) and the Computational Material Modeling (IEK-13) departments at the Forschungszentrum Jülich. In ... -
Biogas biological desulphurisation under extremely acidic conditions for energetic valorisation in Solid Oxide Fuel Cells
(2014-11-01)
Article
Restricted access - publisher's policyThe most harmful biogas contaminant for energy conversion equipment such as fuel cells is hydrogen sulphide (H2S); thus efficient and cost-effective treatment systems for this compound should be designed and developed. A ... -
Biogas deep clean-up based on adsorption technologies for solid oxide fuel cell applications
(2014-11-01)
Article
Restricted access - publisher's policyBiogas from anaerobic digestion is a powerful renewable fuel that can be used as a feedstock for fuel cell systems. A biogas deep treatment was installed and operated at pilot plant level in a Waste Water Treatment Plant ... -
Caracterización y adquisición del comportamiento de una celda de combustible para la valoración de la eficiencia energética en un motor eléctrico a escala
(Universitat Politècnica de Catalunya, 2017-06)
Bachelor thesis
Open AccessThis thesis is part of the previous line of research carried out by the students of the mechanics specialty together with the Department of mechanics and fluids, who developed a Fuel Cell together further to a prototype ... -
Challenges in computational modeling of two-phase transport in polymer electrolyte fuel cells flow channels: a review
(2018-11)
Article
Open AccessExcess of liquid water in gas channels of polymer electrolyte fuel cells is responsible for malfunctioning of these devices. Not only it decreases their efficiency via partial blockage of reactants and pressure drop, but ... -
Characterization of voltage loss for proton exchange membrane fuel cell
(Universitat Politècnica de Catalunya, 2015-06-09)
Bachelor thesis
Open AccessLes piles de combustible són, cada dia més, una alternativa als clàssics vectors energètics. La utilització de l’hidrogen com a font energètica suposa una important reducció d’emissions i costos, tot i que la tecnologia ... -
Cogeneració amb piles de combustible: aplicació a edificis de la UPC
(Centre per a la Sostenibilitat, 2009-07-09)
Conference report
Open AccessLes piles de combustible són dispositius electroquímics que transformen directament l’energia d’un combustible químic en energia elèctrica i calor. Entre els seus avantatges destaquen una eficiència energètica molt elevada, ... -
Comparative life-cycle assessment of residential heating systems, focused on solid oxide fuel cells
(Universitat Politècnica de Catalunya, 2012-07)
Master thesis
Restricted access - author's decision
