Alex Fraser wrote:
>
> Well this is really not on subject, but seems like a good place to throw
> out this idea.
>
> Could you power an off the shelf air tool with a H2O2 gas generator? A
> die grinder powered pump? Or air ratchet dive brake actuator or valve
> controller?
Well, yes, but.
First, remember that steam gas from peroxide decomposition is rich in
oxygen (like 1/3 oxygen by volume, over half again the amount in air).
Now, remember that most, if not all pneumatic tools are designed to be
lubricated with petroleum oils; they have nitrile O-rings, nylon seals,
and teflon or lithium grease in the bearings.
That would make operating them safely on steam gas a matter of ground up
rebuilding, substituting materials (and then testing them to be sure
they hold up, since many oxygen compatible substances have much
different wear properties than otherwise similar petroleum compatible
materials) and lubricating everything with Krytox.
And then you still have to worry about the steam part of the steam gas,
which will condense in the motors of the tools and potentially lead to
hydraulic locking (these tools don't have drain valves like a steam
engine), cavitation pitting, corrosion, lubricant wash down, and reduced
power due to reduced working volume. Depending on the application and
how you supply the steam gas, water might even freeze and ice lock the
motor.
If you have additional pressurant, these motors and actuators will
operate very nicely on properly regulated nitrogen, but the weight of a
larger pressurant tank, combined with the weight of motors, gears and
bearings designed for durability instead of lightness would likely add
up to a major performance hit.
--
Love wealth above life itself, and starve in splendor.
-- Elvish proverb
Donald Qualls, aka The Silent Observer NAR # 70141-SR Insured
Rocket Pages http://silent1.home.netcom.com/launches.htm
Telescope Pages http://silent1.home.netcom.com/astronomy.htm
Lathe Pages http://silent1.home.netcom.com/HomebuiltLathe.htm
Opinions expressed are my own -- take them for what they're worth
and don't expect them to be perfect.
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