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Using the Air Plate
Using the Air Plate
Assemble the fuel cell as described in the “Assembly” section. Using the fuel cell in this
configuration will allow heat to dissipate. Heat dissipation will keep the fuel cell from drying out
as fast. This allows you to apply more current to the cell, and in return, get more power.
1. Use a hose clamp to seal the ends of the fuel cell hoses on the outlet side, in order to prevent
the hydrogen from flowing out unchecked. In order to prevent damage to the cell, avoid gas
pressures over 0.6 bar when using hydride storage systems.
2. Should the voltage on the fuel cell drop, open the hose clamp briefly in order to allow inert
gases to escape.
“Closed outlet” gas supply mode
“Closed outlet” gas supply mode
The “closed outlet” gas supply mode is employed with all hydrogen sources which deliver the
gas at a slight pressure (e.g. by means of a water column) and with which the hydrogen would
thus escape unused in the “open outlet” operating mode. Such sources include the Hofmann
apparatus and hydride or gas storage systems. Only in this operating mode can efficiency
measurements be performed.
Note:
Note:
As excess gas is not allowed to escape continuously, concentrations may form of other gases
which may be present in the hydrogen and which are not consumed in the fuel cell. In extreme
cases, the fuel cell may become completely filled with inert gases. The reaction gas is then
prevented from entering the cell.
