Info

+ N- ;

2. Proton Exchange:

Occurs through the membrane.

3. Electron Flow:

Through external circuit.

1. Water Electrolysis Reaction: \

Oxygen is produced at the anode.

2. Proton Exchange:

Occurs through the membrane.

H2 Captured:

Hydrogen

4. Electrons Recombine with Protons: Hydrogen is produced at the cathode.

3. Electron Flow:

Through external circuit.

4. Electrons Recombine with Protons: Hydrogen is produced at the cathode.

Because the contact pressure in the junction between the membrane and the electrode is critical in keeping resistance and voltage drop to a minimum, a machined and very flat aluminum plate is set at both ends of the stack. Using stainless steel rods passing through the stack at each corner, controlled pressure can be applied. A spring washer, known as a Bellville washer, is used under each bolt head to help control compression as the stack heats up and expands.

Electrolyzer Stack Showing Two Complete Cells

O2 Out

Gasket

End Plate:

304 Stainless steel nx

H2 Out

Body: Delrin

Anode

The PEM electrolyzer stack—eight cells operating at 2 VDC nominal per cell—separates the hydrogen and oxygen atoms of water molecules.

The PEM electrolyzer stack—eight cells operating at 2 VDC nominal per cell—separates the hydrogen and oxygen atoms of water molecules.

Proton Exchange

Membrane

Second Cell

H2O in ux

11 Nickel Screen:

With gasket

Cathode

Gas Channels r \

Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

Get My Free Ebook


Post a comment