Jerry Hey wrote:

Does anyone see a problem with supplying air to the cool tube as shown
in the drawing?   Also,  could slowing the air inside the tube by
slightly restricting the outlet be beneficial?   The purpose would be
to make sure  cool air contacted 100 per cent of the inner surface of
the cool  tube.  If it just swirls in from the inlet, might there be
hot spots?     Jerry

Jerry Hey
j-winddesigns@thegrid.net

You won't get any airflow unless you hook the 1-1/2 inch tube to a source
of dynamic pressure. Restricting the out let will hurt rather than help.

If you really want to cool the tube better you need internal
fins. No easy way to do that.

Paul Lamar

Paul and Jerry,
There is an easy way to put fins in the  2' cool tube - if you put them in
before you weld the 2" tube into the 6" tube.

Just drill some holes directly through the 2 " tube and weld in what you
want ( flat or round) - weld from the outside.
You could probably leave them long, which would cause some swirling in the
inside of the 6" tube as well.

Just a suggestion!

George (down under)

 
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