HyCogeneration The fuel cell system for your hydrogen – with and without fire prevention

Accessibility of protected areas

Whether a fire can start depends in part on the oxygen content (volume percentage vol%) in the ambient air. Through the supply of nitrogen-rich air from our fuel cell, we reduce the oxygen concentration so that it is practically impossible for a fire to develop. 

Normal breathing air consists of around 20.9% oxygen and 78% nitrogen. As opposed to fire, the volume percentage is not a critical factor for human breathing, but rather oxygen partial pressure. Where air pressure is lower, for example in aeroplanes or in mountainous areas, oxygen partial pressures decreases. Human breathing reacts to this with quicker signs of fatigue, while the flammability of fire remains the same.

Fire has no air, but you do

If the oxygen content in the air at sea level is reduced, there is already a significantly lower risk of fire at a level of around 17% vol. At 15% vol., most solid matter is no longer flammable. The oxygen partial pressure at this level corresponds to that at an altitude of around 2,700 above sea level. Accordingly, accessibility of your facilities can be preserved in many cases.