Use of nitrogen is growing due to its wide variety of
applications creating inert atmosphere, carrier gas, blanketing, purging,
packing, filling, plastic moulding, etc) covering a broad spectrum of industry &
research laboratories. It is also used in tank farms, mobile tankers &
containers, agricultural products storages, tyre filling, etc.
In most applications, the N2 pressure required is less than 6 bar. Despite this,
high pressure N2 cylinders are commonly used as source of N2, whose handling is
quite hazardous & risky. A better option would be to produce your own low
pressure N2
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The air we breath (and the normal compressed air used to inflate
tyres) contains 78% Nitrogen, 21% Oxygen and 1% other gases. Purified nitrogen
has been used to inflate tyres on aircraft and racing cars for many years, but
now some tyre specialists are offering nitrogen inflation for ordinary car and
van tyres.
The advantages of using nitrogen in specialist applications are clear
Planes fly at heights where temperatures may be as low as -40C. Any moisture in
the tyres can freeze causing vibration and balance problems when landing. Pure
nitrogen is dry so eliminates this problem (as would using dried compressed air)
In motor sport the smallest fraction of a second can make the difference between
winning and losing. Filling with nitrogen can reduce tyre pressure variation
caused by changes in tyre temperature. |
