pic: Green Machine Competition - 10 Cell Fuel Cell Stack

[Fuzzy]

Originally Posted by sparksandtabs

I am a little confused, I don't see a PEM in the stack, and from looking at the picture of the plates, I don't see how the gasses flow through.

*I am new to fuel cells...I am only used to seeing PEM fuel cells

-john

The MEA (the proton exchange membranes) are very thin, and there's one (and two surrounding PTFE gaskets) between each bipolar plate. The reason you can't see them in this picture is simply because of the angle at which it was taken at.

This fuel cell system is "open breathing," as the oxygen just enters from the outside into the spaces inbetween the plates. We got computer fans to increase air flow to the cell.

The hydrogen enters through the tube seen in the picture.

Nice close-ups by the way