Effect of Water Content in the Gas Diffusion Layer of H<SUB>2</SUB>/O<SUB>2</SUB> PEM Fuel Cell

The heart of a fuel cell is the membrane-electrode assembly consisting of two porous electrodes, where the electrochemical reactions take place, and the ionomer conductive membrane, which allows the proton exchange from the anode to the cathode. The porosity of the electrodes plays an important role...

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Autores principales: Cespedes, Germán, Asteazaran, Mariano, Castro Luna Berenguer, Ana María del Carmen
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Química
Fuel cells
porous-electrodes
electrode flooding
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/108950
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-108950
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Fuel cells
porous-electrodes
electrode flooding
spellingShingle Química
Fuel cells
porous-electrodes
electrode flooding
Cespedes, Germán
Asteazaran, Mariano
Castro Luna Berenguer, Ana María del Carmen
Effect of Water Content in the Gas Diffusion Layer of H<SUB>2</SUB>/O<SUB>2</SUB> PEM Fuel Cell
topic_facet Química
Fuel cells
porous-electrodes
electrode flooding
description The heart of a fuel cell is the membrane-electrode assembly consisting of two porous electrodes, where the electrochemical reactions take place, and the ionomer conductive membrane, which allows the proton exchange from the anode to the cathode. The porosity of the electrodes plays an important role in the fuel cell performance. One of the drawbacks presented by the porous electrodes is the accumulation of water in their structure, which implies a hindrance for the reactive gas transport to reach the catalytic reactive sites. In this paper, a mathematical model of a porous electrode, assuming single pores with uniform distribution, is introduced to determine the influence of water accumulation in the electrode on the fuel cell performance under different operating conditions. It is demonstrated that at low current densities, water accumulation has no effect in the fuel cell behavior, whereas at high current densities its performance is severely affected.
format Articulo
Articulo
author Cespedes, Germán
Asteazaran, Mariano
Castro Luna Berenguer, Ana María del Carmen
author_facet Cespedes, Germán
Asteazaran, Mariano
Castro Luna Berenguer, Ana María del Carmen
author_sort Cespedes, Germán
title Effect of Water Content in the Gas Diffusion Layer of H<SUB>2</SUB>/O<SUB>2</SUB> PEM Fuel Cell
title_short Effect of Water Content in the Gas Diffusion Layer of H<SUB>2</SUB>/O<SUB>2</SUB> PEM Fuel Cell
title_full Effect of Water Content in the Gas Diffusion Layer of H<SUB>2</SUB>/O<SUB>2</SUB> PEM Fuel Cell
title_fullStr Effect of Water Content in the Gas Diffusion Layer of H<SUB>2</SUB>/O<SUB>2</SUB> PEM Fuel Cell
title_full_unstemmed Effect of Water Content in the Gas Diffusion Layer of H<SUB>2</SUB>/O<SUB>2</SUB> PEM Fuel Cell
title_sort effect of water content in the gas diffusion layer of h<sub>2</sub>/o<sub>2</sub> pem fuel cell
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/108950
work_keys_str_mv AT cespedesgerman effectofwatercontentinthegasdiffusionlayerofhsub2subosub2subpemfuelcell
AT asteazaranmariano effectofwatercontentinthegasdiffusionlayerofhsub2subosub2subpemfuelcell
AT castrolunaberengueranamariadelcarmen effectofwatercontentinthegasdiffusionlayerofhsub2subosub2subpemfuelcell
bdutipo_str Repositorios
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