Also worth mentioning is the late Charles Pooley’s pet idea of introducing a
thin layer of ice on top of the LOX to eliminate the requirement for a diffuser
and to theoretically provide a positive insulation between the pressurant gas
and LOX.
Troy
From: arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On ;
Behalf Of William Claybaugh
Sent: Thursday, 5 April 2018 12:33 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: PSAS LOX Tank Diffuser
Georges:
You want a machined aluminum disk, hollow in the center and with either holes
or slots cut in the sides. Weld it to the inside of the top tank dome and
separately weld a boss at the dome entrance for the nitrogen inlet. Gas flows
into the tank and then out the holes / slots and along the dome.
Obviously, after this assembly is welded into the tank assembly, everything
will have to be heat treated and then stretched and formed back to a true
cylinder.
Bill
On Wed, Apr 4, 2018 at 7:38 PM Georges Oates Larsen <g.mason@xxxxxxxxxx
<mailto:g.mason@xxxxxxxxxx> > wrote:
Howdy, folks, Georges here from PSAS <http://psas.pdx.edu/> at Portland State
University!
I'm wondering if anybody knows anything about creating a diffuser for the N2
entrance on a LOX tank. We're using the N2 to pressurize our LOX, and we need a
diffuser to make sure we don't end up with pressurized N2 mixing into the LOX
and getting pushed into our systems downstream.
Is anybody aware of any research articles or other sources out there about the
possible designs for this sort of thing? Possible materials/important design
points to make sure the thing actually works as intended? Key hangups to be
avoided?
Thank you,
-- Georges Oates Larsen