OK, this is not a good idea. I will move it down my long list of "might tries". I'll try to test it when I'm 127 ;-(
The Silent Observer wrote: > 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. > _______________________________________________ > ERPS-list mailing list > [EMAIL PROTECTED] > http://lists.erps.org/mailman/listinfo/erps-list -- >>>>>>>>>>>>>>>>----<<<<<<<<<<<<<<<<< ........ Alex Fraser N3DER ......... ......... [EMAIL PROTECTED] ....... [~]_>^</\-[~]_>^</\-[~]_>^</\-[~]_>^< _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list
