Three-dimensional macrohomogeneous mathematical model of an industrial-scale high-temperature PEM fuel cell stack

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43916299" target="_blank" >RIV/60461373:22310/18:43916299 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22340/18:43916299

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0013468618307746" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0013468618307746</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.electacta.2018.04.042" target="_blank" >10.1016/j.electacta.2018.04.042</a>

Result language

angličtina

Original language name

Three-dimensional macrohomogeneous mathematical model of an industrial-scale high-temperature PEM fuel cell stack

Original language description

Mathematical modelling offers an efficient tool for the development and optimization of various technologies, including fuel cells. However, the implementation and utilization of such a model for an industrial-scale fuel cell stack is a considerable challenge. The reason is that it consists of many layers and interphases which often display stiff behaviour. Consequently, a detailed mathematical model of such a stack is computationally difficult and highly demanding on the computational power of the hardware. The macrohomogeneous (volume-averaged) approach presented assumes a continuum on a characteristic length scale of a few centimetres (cumulative thickness of a few cells of the stack) in all spatial directions. The anisotropic structure of the real system is then expressed by means of anisotropic transport parameters. In this work, the macrohomogeneous approach is applied to a three-dimensional model of an industrial-scale high-temperature polymer electrolyte membrane (PEM) fuel cell stack consisting of 100 cells with two different flow-field geometries: (a) a 5-fold serpentine and (b) a parallel channel flow field. They were selected because of the significantly different uniformity of the gas distribution in the cell. Stationary conditions, dry pure hydrogen and air at the inlet, as well as common operating conditions (160 degrees C, 101.325 kPa) are considered. The model approach described not only helps to provide a better understanding of the behaviour of a fuel cell stack on a local scale, but also to identify potential weaknesses in the system design. (c) 2018 Elsevier Ltd. All rights reserved.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

<a href="/en/project/7HX13001" target="_blank" >7HX13001: Construction of Improved HT-PEM MEAs and Stacks for Long Term Stable Modular CHP Units</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Electrochimica Acta

ISSN

0013-4686

e-ISSN

—

Volume of the periodical

273

Issue of the periodical within the volume

20 May 2018

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

432-446

UT code for WoS article

000431776600047

EID of the result in the Scopus database

2-s2.0-85045575705