Analytical and experimental investigations of a proton exchange membrane fuel cell

Ferng, Yuh-Ming; Tzang, Yih-Chyun; Pei, Bau-Shei; Sun, Cheng; Su, Ay

doi:10.1016/s0360-3199(03)00159-9

Cited by 59 publications

(22 citation statements)

References 27 publications

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“…Ferng et al [1] have investigated analytically and experimentally the performance of proton exchange membrane (PEM) fuel cell. Their model has focused on the cathode compartment of PEMFC.…”

Section: Introductionmentioning

confidence: 99%

Effects of operating parameters on performance of a proton exchange membrane fuel cell

Amirinejad

Rowshanzamir

Eikani

2006

Journal of Power Sources

128

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“…Ferng et al [1] have investigated analytically and experimentally the performance of proton exchange membrane (PEM) fuel cell. Their model has focused on the cathode compartment of PEMFC.…”

Section: Introductionmentioning

confidence: 99%

Effects of operating parameters on performance of a proton exchange membrane fuel cell

Amirinejad

Rowshanzamir

Eikani

2006

Journal of Power Sources

128

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“…The results of an analysis of a positive influence of elevated temperatures and pressures on the operation of hydrogenoxygen fuel cells with a solid polymer electrolyte are reported in [41,42]. Experiments and calculations show that the influence exerted by temperatures is more significant than the influence exerted by pressures. ]…”

Section: The Catalyst Is Distributed Over the External Surface Of A Gmentioning

confidence: 99%

Calculating a Characteristic Bulk Current Density in the Cathode of a Hydrogen-Oxygen Fuel Cell with a Solid Polymer Electrolyte

Chirkov

Rostokin

2005

Russ J Electrochem

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The magnitude of currents of electrodes in hydrogen-oxygen fuel cells of all types is shown to be fully determined by values of the effective coefficient of gas diffusion, the effective coefficient of ionic conduction, and the characteristic bulk current density. The characteristic bulk current density is estimated in two versions for cathodes with Nafion: the catalyst is distributed in the bulk of substrate grains or at their external surface. The currents commensurate with those observed in experiments are given only by the second version. Means of computer-aided simulation are used to imitate the formation of fractal films composed of the catalyst particles on the surface substrate grains. The simulation means made it possible to link the magnitude of the specific surface area of platinum particles with its weight content in substrate grains. Electrochemical characteristics of the cathode with Nafion-the potential dependence of the optimum magnitude of the overall current and the thicknesses of the active layer and the weight of platinum in it, as well as the magnitudes of the optimum current generated by a unit weight of platinum-are calculated. A notion of "norm" is introduced for the characteristic bulk current density of the cathode. 1 × 10 -3 A cm -3 is the electrochemical-process intensity, which the technology of preparation of active layers of cathodes can provide at this stage in the development of fuel cells with a solid polymer electrolyte.

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“…The results obtained can help determine the proper stacking parameters such as bipolar plate thickness, sealing size and assembly pressure, and are important in obtaining a consistent fuel cell performance. Ferng et al [8] did analytical and experimental investigations of a PEMFC and found that the model can reasonably simulate the flow characteristics in the cathode compartment of a PEMFC. Liu et al [9] designed weighing coefficients for all response variables by selecting certain variables as the same value from the construction process of the overall desirability function.…”

Section: Introductionmentioning

confidence: 99%

Compression of Seals in PEM Fuel Cells

Chien

Lin

Chao

et al. 2011

Experimental Mechanics on Emerging Energy Systems and Materials, Volume 5

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Seals or gaskets are used in PEM fuel cells (PEMFC) or stacks to prevent leaking of the liquid and gas inside the cell. The fuel cells or the stacks are normally assembled with nuts and bolts or a combination of nuts, bolts, and springs. As the seal is typically made of polymers, the level of the compressive stress applied to the seal during long term operation of the fuel cell relaxes. In addition, the amount of compression applied to the seal may vary due to temperature changes during the fuel cell operation which arises from thermal expansion and contraction of all components in the cell. To understand the sealing force existed in a fuel cell during operation, all these factors must be fully understood.In this study, the compression of the seal in a PEMFC was investigated experimentally.Specifically the amount of compression was measured in-situ, i.e. immediately after the assembly and during the normal operation of the PEMFC. The objective of this study is to gain an understanding of the variation of compressive strain applied to the seal as the temperature of the PEMFC changes and cycles. This information is useful in estimating the sealing force in the cell and consequently the life of the seal.

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Analytical and experimental investigations of a proton exchange membrane fuel cell

Cited by 59 publications

References 27 publications

Effects of operating parameters on performance of a proton exchange membrane fuel cell

Effects of operating parameters on performance of a proton exchange membrane fuel cell

Calculating a Characteristic Bulk Current Density in the Cathode of a Hydrogen-Oxygen Fuel Cell with a Solid Polymer Electrolyte

Compression of Seals in PEM Fuel Cells

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