Injecting Compressed Air
Name: Rk Varma
Can you inject compressed air in a plastic pipe already
filled with water. How can air even enter. I am told they are able to do it.
The pipe has to stretch, the water has to compress, the air has to dissolve
in the water, or some combination of the three.
Richard E. Barrans Jr., Ph.D.
PG Research Foundation, Darien, Illinois
Of course they can since air (a gas) is compressible. It would act like
carbonation in seltzer water. Just get a plastic bottle of seltzer and feel
how hard it is, then upon opening it goes soft, it is just the air coming
out or in that case CO2.
If there is no "air space" left in the pipe, the answer is no except for
the small amount of air that will dissolve in the water.
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Update: June 2012