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The
experiments conducted on the hydrogen fuel cell required additional care and
consideration due to the fact that hydrogen gas is considered to be highly
flammable. Therefore safety precautions are very important for the hydrogen fuel
cell operation.
The
equipment required for this application is shown on the image below:
A
thermometer with a thermocouple device, a multimeter, a variable resistor,
Vaseline, water, hydrogen tube, hydrogen bottle, wires and connectors are all
required for the experiment on hydrogen fuel cell.
Measurements
of power were taken at different times. Each time the voltage remained constant
while current was altered. The results obtained from that experiment are all
being graphically demonstrated below:
The
maximum power output obtained was about 20 mW and that was on the sixth minute
of the experiment. After that minute the power started dropping.
The
power output from that experiment seemed to be quite low, which represents the
major disadvantage of such a fuel cell. In order to generate more power from a
hydrogen fuel cell a larger fuel cell may be used.
The
advantage of hydrogen fuel cells is that they can operate almost indefinitely
without stopping.