The polymer electrolyte fuel cell (PEFC)
Liquid Water Removal from a Polymer Electrolyte Fuel Cell
... a polymer electrolyte fuel cell 共PEFC兲 are studied experimentally and ...the fuel cell via corner flow. Under these conditions, the fuel cell could operate stably ...
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Numerical Simulation of Concentration Over-voltage in a Polymer Electrolyte Fuel Cell under Low-Hydrogen Conditions
... concentration fuel gas on polymer electrolyte fuel cell (PEFC) performance, with particular emphasis on the transport of chemical species in the anode separator channel and the ...
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Mathematical modelling of the catalyst layer of a polymer electrolyte fuel cell
... In this paper, we derive a mathematical model for the cathode catalyst layer of a polymer electrolyte fuel cell. The model explicitly incorporates the restriction placed on oxygen in reaching ...
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CiteSeerX — Characteristic Behavior of Polymer Electrolyte Fuel Cell Resistance during Cold Start
... Engineering, Fuel Cell Dynamics and Diagnostics Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802, USA b Hyundai Motor Corporation, Yongin, Korea In this study, experimental ...
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Numerical Modeling of Polymer Electrolyte Fuel Cell Catalyst Layer with Different Carbon Supports
... efficient percolation at a lower catalyst particle concentration allows to increase the ionomer concentration together with the appropriate decrease of its resistance and the optimization of the mass- transport. But if ...
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Electrochemical Treatment of Stainless Steel for Application in Polymer Electrolyte Fuel Cell Bipolar Plates
... 178 !! !!Ta bl e! 16 :!Co m pa ris on !of !cor ros ion! cur rent !dens ities !a t!E corr ,!0. 1! m V HRE ,!p ea k!( i crit )!a nd !p as siv ati on !( i p )!of !a nodi sed! trea ted! and! unt rea ted! 316! sta inl es ...
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An investigation into the use of additive manufacture for the production of metallic bipolar plates for polymer electrolyte fuel cell stacks
... Looking particularly at Figure 7B, it is apparent that the performance of the cells when using the SLM plates was slightly enhanced, evident in the smaller size of the arc and variation in the response at low frequency. ...
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Expert diagnosis of polymer electrolyte fuel cells
... Both measures should be used in conjunction to support control decisions. For example, a none-to-low certainty for all degradation mode outputs is expected for normal operation, meaning no change to control and usage of ...
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Failure analysis of Polymer Electrolyte Fuel Cells (PEFC)
... support 1 X Table 2: FT Transfer Events; frequency and top events affected This mechanism of repeated swelling and contraction induces a number of other significant processes. The process can also cause a repeated ...
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The effects of water and microstructure on the performance of polymer electrolyte fuel cells
... a Polymer Electrolyte Fuel ...(or cell voltage), demonstrating the role of micro-structure, liquid water removal from the channel, water activity, membrane and gas diffusion layer thickness ...
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Diagnosis of MEA degradation for health management of polymer electrolyte fuel cells
... and a degradation rate of 2-10μV/h are considered to be acceptable for the majority of applications [2]. Diagnostics and health management are fundamental approaches to improve the reliability and durability of PEFC’s. ...
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Novel polymer electrolyte membranes for fuel cell applications
... to polymer films made of poly(ethylene-tetrafluoroethylene) (ETFE), 89,90 poly(vinylidene fluoride) (PVDF), 90-92 poly(fluoroethylene-co-hexafluoropropylene) (FEP) 93,94 or ...base polymer; grafting of ...
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Polymer Electrolyte Membrane (PEM) fuel cell seals durability
... PEM fuel cell stack. Utilising hydrogen gas as a fuel can cause two different types of safety concerns in PEMFCs: escaping of hydrogen from the fuel cell due to inadequate sealing and ...
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Enzymatic Based Biocathode in a Polymer Electrolyte Membrane Fuel Cell
... a fuel cell operating with a conventional platinum anode and a peroxidase based biochatode are ...membrane fuel cell, in which cathode and anode were fed with oxygen and hydrogen, ...
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TRANSPORT LIMITATIONS IN POLYMER ELECTROLYTE MEMBRANE FUEL CELL ELECTRODES
... the cell on lower pressure could additionally validate the observations done in this ...the cell while decreasing the load and, therefore, dropping the demanded ...the fuel cell could not be ...
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Sizing Supercapacitor for Direct Hybridization with Polymer Electrolyte Membrane Fuel Cell
... accommodate fuel cell (FC) systems to the dynamic loads met in transport applications consists in hybridizing the FC with a storage device, such as batteries or ...
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Polyimide Based Polymer Electrolyte Membrane For Direct Methanol Fuel Cell Applications
... IJSRR, 8(2) April. – June., 2019 Page 866 operation of fuel cells 13 . Physically adsorbed water acts as a proton-carrying medium that follows vehicle mechanism, while chemically adsorbed water obeys Grotthuss ...
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Polyimide Based Polymer Electrolyte Membrane For Direct Methanol Fuel Cell Applications
... IJSRR, 8(2) April. – June., 2019 Page 866 operation of fuel cells 13 . Physically adsorbed water acts as a proton-carrying medium that follows vehicle mechanism, while chemically adsorbed water obeys Grotthuss ...
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“Polymer Electrolyte Membrane and Direct Methanol Fuel Cell Technology”137-142
... low-temperature fuel cells, ...low-temperature fuel cells could have been a separate chapter in the book emphasising the correlation between the fl ow fi eld plate design and material, the gas diffusion ...
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Fault detection for polymer electrolyte membrane fuel cell stack by external magnetic field
... 26 obtained on the GENEPAC stack show the sensitivity of the magnetic field to any change in operating conditions and to a localized fault on some cells of the stack. The sensitivity of our diagnosis tool has been ...
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