Re: [PSUBS-MAILIST] Hey, looky, rocket fuel as ballast!

[Coalbunny <coalbunny@vcn.com>]

Sodium metal.  Calcium carbide.  
Carl


Emile wrote:
> 
> Dewey,
> 
> I looked for you in the book '"rocket propulsion elements"from G. Sutton,
> what is the bible for rocket engines
> He spend a few pages about this subject . In short:
> -burn time: 30-300 sec
> -temp 800-1600 K
> - can be used in steel casings
> There is mentioned a variaty of uses from car airbags to (yes, underwater
> application) drive missiles out of a submarine.
> 
> Seems to me there is a lot of research needed to get it reliable . Isnt
> exist a chemical what yust produces gas in contact with water?
> 
> regards, Emile
> 
> ----- Original Message -----
> From: "Dewey Mason" <drmason2001@yahoo.com>
> To: <Personal_Submersibles@psubs.org>
> Sent: Friday, January 23, 2004 5:34 AM
> Subject: [PSUBS-MAILIST] Hey, looky, rocket fuel as ballast!
> 
> > Hey Guys,
> > I have been spinning our TDPF sub ideas off of some
> > different engineering type folks, and all but one
> > thought I was high on something, or just joking them
> > around. Greg Kokes seemed to think I might live
> > through my first sub, but in this he was alone.
> >  I would like to hear the views of this group on the
> > idea of using either a solid, slower burning
> > propellant, or a two part chem-mix to create ballast
> > blowing gas at extreme depths for normal return to the
> > surface, or as an emergency alternative to HP air. I
> > know on the surface it may sound like "death come
> > calling", but I do believe that with a little well
> > applied risk management and some fair amount of
> > physics, one could create gas from liquid or solid
> > resources carried out in the ballast tanks, or between
> > the hulls, to give lift to come home on.
> >  The idea being to either ignite a small, slow burn
> > "rocket", or contained, otherwise watertight
> > propellant charge, to create gas, or inject an
> > oxy-fuel mixture into a combustion chamber of sorts
> > and harness the resulting gas. This could be done
> > directly inside the ballast tanks, or outside the
> > tanks in a purpose built compartment, and just route
> > in the gas. Cooling the plumbing should be fairly easy
> > using seawater, if needed.
> >  I realize the cooling effect of water would diminish
> > the gases volume pretty fast, but huge amounts of gas
> > could be produced from a relatively small amount of
> > fuel, and the gas would only lose so much volume
> > before reaching a stable temp. There would be no real
> > leak issues I can see, due to the fuels being in
> > separate containers, themselves separated by metal
> > bulkheads and water.Also there would be no need for
> > them to be pressurized beyond what an internal spring
> > piston could provide, due to their ambient pressure
> > environment. I hope to hear both suggestions of "How
> > to", and the "Devil's Advocate" side of this.
> > Thanks,
> > Dewey R Mason II
> > Abyss Marine Technologies
> >
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-- 
Spotted Owl...it's what's for dinner.