Subject: cool tube inlet
From: ACRE
Date: 11/16/2004, 9:03 PM


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)

Thanks, but I don't want or need fins inside the cool tube.  It is
interesting how a simple communication immediately gets off course and
ends up in  the strangest place.   Jerry

Sorry I brought it up Jerry but you did mention enhancing the cooling
of the tube.

Paul Lamar
 
The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2004 All world wide rights reserved.