Principle

The performance curve of a PEM fuel cell is not linear, but
reaches a maximum performance at a certain current. When fuel cells
are used in practice, it is important that they are operated with
the current at which the fuel cell brings the most power.

Fuel cells are interconnected to form large stacks (fuel cell
stacks) for more power. It is hereby a must that each individual
fuel cell is optimally operated, so that the stack produces the
highest possible power.


In this experiment, the current-voltage characteristic of a PEM
fuel cell is recorded and examined to determine at which given
current the highest performance can be drawn off.

Benefits


Experiment is part of a complete solution set with a total of 10 experiments for Renewable Energy fuel-cell technology

The power supply used is versatile and is particularly suitable for pupil tests for all ages

Doubled learning success: Electric circuit diagram on top, real components can be seen at the bottom



Tasks

When does a PEM fuel cell provide especially high power?