Transient non-isothermal model of a polymer electrolyte fuel cell


Shah, A.A., Kim, G.S., Sui, P.C. and Harvey, D. (2007) Transient non-isothermal model of a polymer electrolyte fuel cell. Journal of Power Sources, 163, (2), 793-806. (doi:10.1016/j.jpowsour.2006.09.022).

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Description/Abstract

In this paper we present a one-dimensional transient model for the membrane electrode assembly of a polymer-electrolyte fuel cell. In earlier work we established a framework to describe the water balance in a steady-state, non-isothermal cathode model that explicitly included an agglomerate catalyst layer component. This paper extends that work in several directions, explicitly incorporating components of the anode, including a micro-porous layer, and accounting for electronic potential variations, gas convection and time dependance. The inclusion of temperature effects, which are vital to the correct description of condensation and evaporation, is new to transient modelling. Several examples of the modelling results are given in the form of potentiostatic sweeps and compared to experimental results. Excellent qualitative agreement is demonstrated, particularly in regard to the phenomenon of hysteresis, a manifestation of the sensitive response of the system to the presence of water. Results pertaining to pore size, contact angle and the presence of a micro-porous layer are presented and future work is discussed.

Item Type: Article
ISSNs: 0378-7753 (print)
Related URLs:
Keywords: Fuel cell; Polymer-electrolyte; Transient model; Sweep simulations; Liquid water; Performance
Subjects: Q Science > Q Science (General)
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences > Thermofluids and Superconductivity
ePrint ID: 44773
Date Deposited: 15 Mar 2007
Last Modified: 27 Mar 2014 18:29
Contact Email Address: A.Shah@soton.ac.uk
URI: http://eprints.soton.ac.uk/id/eprint/44773

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