Supply System And Method For Providing Electric Energy, Oxygen Depleted Air And Water As Well And Aircraft Having Such A Supply System

A supply system for providing at least oxygen depleted air and water in a vehicle, the system comprising:

• a fuel cell;
• an independent catalytic converter;
• at least one hydrogen supply means;
• at least one air supply means;
• at least one outlet for oxygen depleted air;
• and
• a control unit coupled with the catalytic converter,
• wherein the fuel cell and the independent catalytic converter are couplable with the hydrogen supply means,
• wherein the fuel cell is adapted for producing water and electric energy through conducting a fuel cell process under consumption of hydrogen from the at least one hydrogen supply means and oxygen;
• wherein the independent catalytic converter is adapted for producing water under consumption of hydrogen from the at least one hydrogen supply means and oxygen,
• wherein the independent catalytic converter is couplable with the at least one air supply means for additionally producing oxygen depleted air, and
• wherein the control unit is adapted for selectively operating one or both of the fuel cell and the independent catalytic converter based on a demand for water, oxygen depleted air, and electrical energy.