: Fire prevention by partial deoxygenation of air
Russell McMahon email (remove spam text)
Fire prevention by partial deoxygenation of air.
This is for data centres but should have applications elsewhere.
Nitrogen flooding during a fire may be practical - replace fire
consumed O2 with N2 to redcue influx of new air and keep O2 at people
safe but fire starving levels.
Wood stops burning when the oxygen content falls to 17% and plastic
cables between 16 to 17%
Wagner makes electric compressors that use a special membrane to
remove some of the oxygen from the outside air, a system the company
calls OxyReduct. The excess oxygen is exhausted, and the remaining
nitrogen-rich air is pumped inside the data centre.
At 15% oxygen, it's safe for humans to enter. The lower oxygen content
of the air is similar to being at an altitude of about 6,000 feet,
Eickhorn says. He demonstrates with a lighter inside a sealed atrium
Wagner has on display at Cebit. It won't light.
See also: www.piclist.com/techref/index.htm?key=fire+prevention
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