This presentation describes how fuel cell
designers can make use of the software tool, CFD-ACE+, to be able to predict
fuel cell performance. The software tool, CFD-ACE+, enable a virtual
environment which can qualitatively and quantitatively address issues on the
following topics; (i) the effect of pressure, temperature, and flow rates on
fuel cell performance, (ii) voltage-current characteristics of fuel cells,
(iii) location and reasons for ohmic losses, (iv) effect of relative humidity
on cell performance, (v) hottest regions, (vi) optimal thickness of
membrane/catalyst layer, (vii) amount of current produced, (viii) locations and
magnitudes of stress concentrations, (ix) how much water is produced. Specific
examples are presented for different fuel cells.