Download e-book for kindle: Electrical Engineering - How to Build a Fuel Cells by Hurley P

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Extra resources for Electrical Engineering - How to Build a Fuel Cells

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010" thick, 4" width, plain, 1' length Part #8912K241, McMaster-Carr. 36 Screw fasteners, nuts, washers. Four-10-24x1 1/ 2 " socket head cap screws. Four-10-24x1 1/ 2 " hex nut, course thread. Eight 3/ 16 " flat steel washers K18 Fuel Cell – Materials list Shrink tubing. 1/ 4 " that shrinks to 1/ 8 " or whatever you can find close to that. Local hardware stores, electrical suppliers, automotive suppliers and Radio Shack are good sources. Barb splicer hose connectors. Can be found at well stocked hardware store.

Graphite plates, carbon paper Place the template on top of the carbon and templates paper and graphite plate (scotch tape is good for holding them in place). Use a pencil or a similar tool to transfer the template markings to the graphite. Mark the crosshairs for the holes as well as the hole outlines so that you will be able to line up the drill with the center of the hole accurately. Then, mark the outlines and fill in the flow field patterns for both plates. The flow field pattern for the hydrogen side is a serpentine pattern.

Then you need a carbon or graphite fabric or paper that will serve as the gas diffuser. Finally, there is the platinum catalyst which is deposited on the carbon fabric or paper. Getting the platinum onto or into the gas diffuser can be accomplished in a variety of ways, including sputter diffusion, electroplating or using inks or powders with carbon black or porous carbon and platinum in them. Once coated, a piece of the platinized fabric or paper is adhered to either side of the polymer electrolyte membrane by adding a liquid polymer electrolyte solution and hot pressing the layers together.

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Electrical Engineering - How to Build a Fuel Cells by Hurley P


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