i.The current density of a fuel cell is 0.61 A cm-2. Assume the water generated remains...

i.The current density of a fuel cell is 0.61 A cm-2. Assume the water generated remains in the liquid phase and no water is ejected from the stack during operation, calculate the time required for 1 mg cm-2 liquid water to accumulate in a fuel cell.

ii.Explain the process that determine water dynamics in a polymer electrolyte fuel cell. Use a diagram to help explain the different processes, where water is generated and the direction and mechanism by which it is transported

Solutions

Expert Solution

Given that:

Current density of a fuel cell = 0.61 A cm-2.

1 mg cm-2 liquid water to accumulate in fuel cell.

Kindly see the below images for solution and explanation of water dynamics in polymer electrolyte fuel cell.

Amanda K answered 3 months ago

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