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

[Dewey Mason <drmason2001@yahoo.com>]

We actually looked at sulfuric acid, as it reacts with
saltwater to produce a large amount of gas at
relatively low temps. Down sides are:

A: It's a bit corrosive.

B; The gas is chlorine, and thus a little toxic. 

 Other catalysts that work with water might do OK.
Just can't produce toxic or explosive (i.e. Hydrogen)
gases. CO2 as an end product would be great. Any
ideas?
Dewey
--- Emile <2stroke@hetnet.nl> 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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