[PDF] Top 20 Modelling and numerical simulation of water transfer in Proton Exchange Membrane Fuel Cells
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Modelling and numerical simulation of water transfer in Proton Exchange Membrane Fuel Cells
... Presentation of the MIPNM can be present almost everywhere, both below the ribs and below the channels ...[23]. In addition, the water distributions presented in [24] for the ... Voir le document complet
183
Validation of pore network simulations of ex-situ water distributions in a gas diffusion layer of proton exchange membrane fuel cells with X-ray tomographic images
... experiments and the simulations is considered as good but is not ...discussed in this ...cause of discrepancies between the simulations and the experiment. In this work we imposed inlet ... Voir le document complet
15
Pore network modelling of condensation in gas diffusion layers of proton exchange membrane fuel cell
... parameters of the continuum model (capillary pressure, relative permeability) are difficult to measure but this is possible as shown in [ Volfkovich et ...PNM and [ Blunt , 2001 ; Blunt et ...study ... Voir le document complet
154
Simulations of one and two-phase flows in porous microstructures, from tomographic images of gas diffusion layers of proton exchange membrane fuel cells
... comparison of several numerical methods is made in [Andrä2013-2] , for the calculation of the effective diffusive transport properties of porous rocks, from tomographic images of ... Voir le document complet
232
Validation of pore network simulations of ex-situ water distributions in a gas diffusion layer of proton exchange membrane fuel cells with X-ray tomographic images
... simulations in PEMFCs porous media have been widely investigated [3,4] ...The simulation methods can be divided into direct methods such as Lattice-Boltzmann and (mesoscale) geom- etry based methods ... Voir le document complet
14
Influence of wettability on liquid water transport in gas diffusion layer of proton exchange membrane fuel cells (PEMFC)
... consideration of simple 3D pore network models is certainly helpful, ...microtomographies of real GDLs. Figure 5 shows a representative image of GDL obtained with this ...size of the sample ... Voir le document complet
8
Proton Exchange Membrane Fuel Cell Operation and Degradation in Short-Circuit
... a simulation study about the hybridization of UC and FCS without using power ...UC and to supply a load. The results demonstrate the interest of this hybridization as well as its ...the ... Voir le document complet
18
Pore network modelling of condensation in gas diffusion layers of proton exchange membrane fuel cells
... discussed in [1] , different mechanisms can be invoked as regards the transfer across the GDL of the water generated by the electrochemical reaction in the catalyst layer (CL): ... Voir le document complet
12
Modeling an ordered nanostructured cathode catalyst layer for proton exchange membrane fuel cells
... model of an ordered nanostructured cathode catalyst layer (CCL) has been developed for proton exchange membrane (PEM) fuel ...cells. In an ordered nanostructured CCL, ... Voir le document complet
14
Pore network model of the cathode catalyst layer of proton exchange membrane fuel cells: Analysis of water management and electrical performance
... Liquid water production mechanism The relative humidity and the temperature local conditions are very important to understand how liquid water is produced through the thickness of the ... Voir le document complet
12
Numerical predictions of transport phenomena in a proton exchange membrane fuel cell
... models and numerical analysis of PEM fuel cells play an important role in understanding the physicochemical phe- nomena and in improving or optimizing PEM ... Voir le document complet
7
A review on performance degradation of proton exchange membrane fuel cells during startup and shutdown processes : causes, consequences, and mitigation strategies
... startup and shutdown processes can have on the durability of a PEMFC, but also provide information on how to alleviate these adverse effects by changing operating condi- tions, such as humidity, ... Voir le document complet
15
Synthesis, characterization, and durability study of PtCo hollow nanoparticles deposited on carbon xerogel as electrocatalysts for Proton Exchange Membrane Fuel Cells
... synthesis and performance of hollow PtCo nanoparticles/CX ...consists in the formation of a Co nanoparticle colloid using citrate molecules as complexing agents, followed by the galvanic ... Voir le document complet
3
Designing the 3D Architecture of PGM-Free Cathodes for H 2 /Air Proton Exchange Membrane Fuel Cells
... 2b and Table S1), Fe-doping reduced the BET surface area of ZIF-8 from 1638 to 758 m 2 ·g -1 ...surface of ZIF-8 and/or encapsulated in ZIF-8 cavities, during the synthesis of ... Voir le document complet
36
Accelerated lifetime testing for proton exchange membrane fuel cells using extremely high temperature and unusually high load
... load and that at normal load operation ...hours of high load lifetime testing at 2.0 A/cm 2 , and that after 130 hour at normal operation testing at ...the fuel cell degradation can be ... Voir le document complet
6
Global Parameters Sensitivity Analysis and Development of a Two-Dimensional Real-Time Model of Proton-Exchange-Membrane Fuel Cells
... a proton-exchange-membrane fuel cell ...fluidic and electrochemical features, which considers in particular the flow field geometric form of fuel ...characteristics ... Voir le document complet
35
Synthesis of Pt/Carbon Xerogel Electrocatalysts for Proton Exchange Membrane Fuel Cells (PEMFC): Effect of the Reduction Procedure
... physicochemical and electrochemical characterization, these catalysts will be studied as cathode materials for PEMFC Membrane Electrode ...support in Porosity in carbons, ... Voir le document complet
1
Synthesis, characterization, and durability study of Pt-Co hollow nanoparticles deposited on carbon xerogel electrocatalysts for Proton Exchange Membrane Fuel Cells (PEMFC)
... However, the decrease of the Pt mass contained in the PEMFC electrodes, in particular at the cathode where the oxygen reduction reaction (ORR) is processed, remains a major challenge. Im[r] ... Voir le document complet
2
Proton exchange membrane fuel cell remaining useful life prognostics considering degradation recovery phenomena
... nominal and dynamic current operating ...condition, and FC2 is operated under dynamic current of 10% oscillations at a high frequency of 5 ...However, in this figure, one can see that ... Voir le document complet
19
Increases in the proton conductivity and selectivity of proton exchange membranes for direct methanol fuel cells by formation of nanocomposites having proton conducting channels
... formation of cross-linked structure in the SP/SA-SNP membrane was demonstrated by its insolubility in DMAc, since the pristine SPAEEKK membrane is readily soluble in the same ... Voir le document complet
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