Modeling polymer electrolyte fuel cells: A high precision analysis

Zhang, S.; Reimer, Uwe; Beale, Steven; Lehnert, Werner; Stolten, Detlef

doi:10.1016/j.apenergy.2018.10.026

Cited by 20 publications

(9 citation statements)

References 49 publications

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“…A mathematical model of fuel cell and an analysis of electrochemical reactant flow dynamics are specified in the literature [36−39]. The fundamentals of non-traditional energy processes are discussed [40]. A high precision analysis of PEM fuel cell is carried out in [41].Further, a wide review is conducted on fuel cells for the processing methods, thermal management, and various components of integrating systems with fuel cell [5].…”

Section: Literature Reviewmentioning

confidence: 99%

“…The production rate of hydrogen is depending only on the current value. To produce 1 kilomole of H2, the electrolyzer consumes 1 kilomole of H2O (contain N0 molecules, the amount of hydrogen produced [40] is given by Equation 35, 𝑁 ̇𝐻2 = 𝐼 2𝑞𝑁 𝑜 (35) 𝑁 ̇𝐻2 = 40 2 × 1.602 × 10 −19 × 6.022 × 10 26 = 2.08 × 10 −7 𝑘𝑚𝑜𝑙𝑒𝑠(𝐻 2 )/𝑠𝑒𝑐 The hydrogen production from electrolyzer is 277ml/min. Mass of water molecules is 9 times that of hydrogen molecule; hence the water consumption rate is 2.493L/min.…”

Section: Sizing Calculation Of Pem Electrolyzermentioning

confidence: 99%

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Modeling analysis and design of Solar PV based hydrogen energy storage system for residential applications

2022

IJATEE

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Section: Literature Reviewmentioning

confidence: 99%

Section: Sizing Calculation Of Pem Electrolyzermentioning

confidence: 99%

Modeling analysis and design of Solar PV based hydrogen energy storage system for residential applications

2022

IJATEE

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“…These examples are also documented in the supplementary information of this study. The serpentine shapes were chosen because they provide good under the rib convection as a result of the pressure difference of adjacent channel sections [64][65][66][67]. A detailed description of the pressure differences for the separate serpentine flow field can be found in the PhD thesis of Bendzulla [68].…”

Section: Computational Fluid Dynamics Simulationmentioning

confidence: 99%

Design and Modeling of Metallic Bipolar Plates for a Fuel Cell Range Extender

et al. 2021

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Fuel cells, designed for mobile applications, should feature compact and low-weight designs. This study describes a design process that fulfills the specific needs of target applications and the production process. The key challenge for this type of metallic bipolar plate is that the combination of two plates creates three flow fields, namely an anode side, a cathode side, and a coolant. This illustrates the fact that each cell constitutes an electrochemical converter with an integrated heat exchanger. The final arrangement is comprised of plates with parallel and separate serpentine channel configurations. The anode and cathode sides are optimized for operation under dry conditions. The final plate offers an almost perfect distribution of coolant flow over the active area. The high quality of this distribution is almost independent of the coolant mass flow, even if one of the six inlet channels is blocked. The software employed (OpenFOAM and SALOME) is freely available and can be used with templates.

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“…The driving force for this effect is the pressure difference between different sections of the long channels. The amount of this cross over flow depends on the permeability of the porous layer [53] and the pressure difference of the channel segments between two bends [25,[54][55][56][57][58].…”

Section: The Serpentine Effectmentioning

confidence: 99%

An Engineering Toolbox for the Evaluation of Metallic Flow Field Plates

et al. 2019

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Metallic flow field plates, also called bipolar plates, are an important component of fuel cell stacks, electrolyzers, hydrogen purification and compression stacks. The manufacturing of these plates by means of stamping or hydroforming is highly suitable for mass production. In this work, a toolbox is created that is suitable for a screening process of different flow field design variants. For this purpose, the geometry and computational mesh are generated in an automated manner. Basic building blocks are combined using the open source software SALOME, and these allow for the construction of a large variant of serpentine-like flow field structures. These geometric variants are evaluated through computational fluid dynamics (CFD) simulations with the open source software OpenFOAM. The overall procedure allows for the screening of more than 100 variants within one week using a standard desktop computer. The performance of the flow fields is evaluated on the basis of two parameters: the overall pressure difference across the plate and the relative difference of the hydrogen concentration at the outlet of the channels. The results of such a screening first provide information about optimum channel geometry and the best choice of the general flow field layout. Such results are important at the beginning of the design process, as the channel geometry has an influence on the selection of the metal for deep drawing or hydroforming processes.

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Modeling polymer electrolyte fuel cells: A high precision analysis

Cited by 20 publications

References 49 publications

Modeling analysis and design of Solar PV based hydrogen energy storage system for residential applications

Modeling analysis and design of Solar PV based hydrogen energy storage system for residential applications

Design and Modeling of Metallic Bipolar Plates for a Fuel Cell Range Extender

An Engineering Toolbox for the Evaluation of Metallic Flow Field Plates

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