Radial flow from the center to the outside on a
4.5" motor does not work well as gravity very
quickly takes over. That's not to say it can't be
done because there were several 4500lbf car and
boat peroxide motors with radial flow which is
where we got the idea from. These were fairly
large long motors where that had lots of room to
run central 1.5 foot core with the screen rapped
around that. We never go a look at the cat pack I
can't tell you what it looked like but that is what we were told it was.
We experimented with quite a few rigs to get the
screen wound around a small central core with the
best being a jig with two sets of pressure
rollers and the nickel alloy center with a slot
in it. With IIRC 500lbf on each set of rollers.
we turned the spindle the screen round up on it.
When we got to a size just over the diameter of
the cat pack liner we brazed the screen to
itself, trimmed it and put it inside what
essentially was a cylinder ring holder the we
could reduce the size of the outside on and
squeezed it till it would fit into the cat pack holder.
Robert
At 08:47 PM 9/17/2016, you wrote:
Robert,
It sounds like the Condor had axial flow from top to bottom. I think what Paul is suggesting is radial flow from inside to outside with a solid bottom plate and a perforated side wall letting the flow out into a surrounding chamber.
I think Paul's idea has a lot of potential. One issue with it is pre-compressing the screens. With axial flow you can press them down with a hydraulic press. How can you pre-compress the screens radially from inside to outside?
Bob Steinke
On Fri, Sep 16, 2016 at 4:42 PM, <<mailto:qbert@xxxxxxxxxxxxxxx>qbert@xxxxxxxxxxxxxxx> wrote:
That is the way the Condor cat pack was made except we injected from the top. We tried center injection but the
peroxide never got to the outer screens so we went back to top injection. No channel rings cause the screen
is tight against the wall of the catpack.
Robert
At 01:58 PM 9/16/2016, you wrote:
Now suppose that you build the cat pack as a hollow spool....
The Catpack material is rectangular (no waste) and is wound around the spool...
The as the H2O2 goes from liquid at the center to Gas at the outside the area of the cat pack increases
So one would expect a lower pressure drop.ÃÂ One can increase the length of the tubular section without increasing
à the anti channeling area....Ã
