[AR] Re: ALASA canceled because... Mixed Mono

  • From: "Anthony Cesaroni" <acesaroni@xxxxxxxxxxx>
  • To: <arocket@xxxxxxxxxxxxx>
  • Date: Fri, 4 Dec 2015 15:46:19 -0500

Hey, at least it gives you a window to try for. :-)



Best.



Anthony J. Cesaroni

President/CEO

Cesaroni Technology/Cesaroni Aerospace

<http://www.cesaronitech.com/> http://www.cesaronitech.com/

(941) 360-3100 x101 Sarasota

(905) 887-2370 x222 Toronto



From: arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On
Behalf Of Lloyd Droppers
Sent: Friday, December 04, 2015 3:42 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: ALASA canceled because... Mixed Mono



Ben,



I found a better link for premixed LOX/CH4




Advances in Cryogenic Engineering: Volume 17 pg 188-191


Google Books Link
<https://books.google.co.nz/books?id=AuPgBwAAQBAJ&pg=PA188&lpg=PA188&dq=rocket+monopropellant+critical+diameter&source=bl&ots=SbfrBDrE_E&sig=uLH4JaNLJLz-tOYGw9JOVkMVcvQ&hl=en&sa=X&ved=0ahUKEwi8n-Gr_cLJAhUjOKYKHVuaB3QQ6AEIKTAC#v=onepage&q=rocket%20monopropellant%20critical%20diameter&f=false>




TL:DR The critical diameter for LOX/LCH4 is less than 0.006" if it exists at
all.



Lloyd



On Thu, Dec 3, 2015 at 10:34 AM, Ben Brockert <wikkit@xxxxxxxxx
<mailto:wikkit@xxxxxxxxx> > wrote:

Good to know, I'd forgotten that exchange. I return to thinking that lox/ch4
monopropellant is completely crazy, not just mostly. Thanks!



On Wednesday, December 2, 2015, Nels Anderson <nels.anderson@xxxxxxx
<mailto:nels.anderson@xxxxxxx> > wrote:

O'Hara et al. (1972) seem to believe it's basically zero:

http://www.freelists.org/post/arocket/LoxMethane-Monoprop-was-Paper-bounty-was-RE-monopropellants

By the way, does anyone know how to get a hold of the NASA
lox-methane-monoprop bibliography mentioned in the message linked to above?


On 12/02/2015 06:34 PM, Ben Brockert wrote:

Again only tangentially related, but anyone happen to have seen the
critical diameter of mixed LOX/Methane? I still think it's insane to
have it in a tank as a monopropellant, but mixing it and injecting it
into a thrust chamber through porous sintered metal or laser drilled
micro holes could give interesting results if it doesn't explode.



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