A 3 dimensional numerical model to study the effect of GDL porosity on high temperature PEM fuel cells

Jha, Vikalp ORCID: https://orcid.org/0000-0001-8279-9626, Hariharan, R and Krishnamurthy, Balaji 2020. A 3 dimensional numerical model to study the effect of GDL porosity on high temperature PEM fuel cells. International Journal of Heat and Mass Transfer 161 , 120311. 10.1016/j.ijheatmasstransfer.2020.120311

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Abstract

A three dimensional mathematical model was developed to study the effect of GDL porosity on high temperature fuel cells. The effect of varying GDL porosity on the varying oxygen and water vapor concentration in the cathode flow fields was studied. Model predicts that a GDL porosity between the ranges of 0.5–0.6 was optimal for the performance of a high temperature fuel cell. For the given set of parameters, a 7% decrease in oxygen consumption on the cathode is seen when the GDL porosity is increased from 0.6 to 0.7. Further increasing the GDL porosity is seen to decrease the oxygen consumption further. Model predictions are compared with experimental data and found to compare well.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	Elsevier
ISSN:	0017-9310
Date of Acceptance:	7 August 2020
Last Modified:	30 Jan 2024 11:30
URI:	https://orca.cardiff.ac.uk/id/eprint/165783

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