Browsing by Subject "Fuel cells"
Now showing items 1-20 of 96
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Amorphous carbon modified nano-sized tungsten carbide as a gas diffusion electrode catalyst for the oxygen reduction reaction
(2015-01-01)
Article
Open AccessNanostructured tungsten carbide with high surface area and containing amorphous carbon is prepared by a low temperature combustion synthesis method. The nanostructured tungsten carbide is used as the catalyst in a gas ... -
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 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 control structures for an integrated ethanol processor for proton exchange membrane fuel cell systems
(2009)
Article
Open AccessThe aim of this work is to investigate which would be a good preliminary plantwide control structure for the process of Hydrogen production from bioethanol to be used in a proton exchange membrane (PEM) accounting only ... -
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 ... -
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 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 ... -
Assessment of energy management in a fuel cell/battery hybrid vehicle
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Article
Restricted access - publisher's policyThe energy management strategy plays a major role in hybrid platforms powered by fuel cells (FCs) and batteries. This paper presents an assessment of energy management focused on fuel economy and battery degradation. ... -
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 ... -
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 ... -
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 -
Control d’una estació híbrida per la gestió d’energia d’un sistema basat en pila de combustible
(Universitat Politècnica de Catalunya, 2015-10)
Master thesis (pre-Bologna period)
Open AccessAquest projecte consisteix en l’estudi de la gestió de l’energia d’un sistema que funciona amb pila de combustible. El projecte va sorgir al visitar l’Institut de Robòtica Industrial (IRI) de la UPC, on hi tenen instal·lada ... -
Control for power conditioner based PEM fuel cell and back-up power system with supercapacitor
(IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
Conference report
Restricted access - publisher's policyThis paper presents a new control strategy to operate a Proton Exchange Membrane Fuel Cell (PEMFC) 1,2 kW and supercapacitor (SC) through a hybrid converter proposed. The Fuel Cell (FC) has a slow dynamic device by its ... -
Control-oriented thermal modeling methodology for water-cooled PEM fuel-cell-based systems
(Institute of Electrical and Electronics Engineers (IEEE), 2015-02-24)
Article
Open AccessIn this paper, a new control-oriented modeling methodology for the thermal dynamics of water-cooled Proton Exchange Membrane Fuel Cells (PEMFCs) is presented and validated. This methodology is not only useful for control ... -
Correlation between electrical and mechanical properties in La1-XSrXGa1-YMgYO3-¿ ceramics used as electrolytes for solid oxide fuel cells
(2014)
Article
Restricted access - publisher's policyThe relation between the electrical and the mechanical properties in Sr and Mg doped LaGaO3 ceramics, which can be used as electrolyte for solid oxide fuel cells, was investigated in terms of hardness and ionic conductivity. ... -
Correlation between electrical and mechanical properties in La1-xSrxGa1-yMgyO3-d ceramics used as electrolytes for solid oxide fuel cells
(2014)
Article
Restricted access - publisher's policyThe relation between the electrical and the mechanical properties in Sr and Mg doped LaGaO3 ceramics, which can be used as electrolyte for solid oxide fuel cells, was investigated in terms of hardness and ionic conductivity. ...
