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Fig. 7: Draining the hydrogen storage tank and the water reservoir
Shutting down
CAUTION
Risk of injury from hydrogen ignition
Escaping hydrogen may ignite when in proximity to an ignition
source.
Prevent hydrogen from escaping. Completely use up all hydrogen at
the end of experiments and before dismantling.
■
Remove the cables of the solar modules from the connections of the
electrolyzer
.
■
Stored hydrogen has to be consumed before draining the storage tanks.
■
Close the shut-off valve.
■
Remove the overfl ow.
■
Drain the hydrogen storage tank and the water reservoir, as shown in fi gure 7. The water
must
be disposed of correctly (e.g. drain).
Before putting the product into storage, observe the following points:
■
You must ensure that the cables of the solar modules are removed from the connections of
the
electroly
z
er.
The electrolyzer my sustain irreparable damage if left connected.
■
Carefully remove any water drops from the product with a soft, lint-free cloth. This prevents
the formation of water stains.
Continue operating the fuel cell until the motor stops by itself. This allows some water to remain
in the fuel cell, moistening the PEM. In addition, this procedure also prevents that hydrogen is
released unnecessarily.
