h a l f b a k e r yThis ain't rocket surgery.
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a normal jet engine, ill use an afterburning turbojet, as an example, but probably any jet would do. At high altitudes, a series of nitrous oxide nozzles would spray nitrous oxide into the engine intake. The nitrous oxide would be a supplementary oxygen source, not the sole source of oxygen. As the jet
gains altitude, more and more nitrous would be used. the resulting breakdown of the gas would use the nitrogen to cool the engine, while producing thrust. the o2 would be the oxidizer.
At high speeds and high altitudes, a turboramjet would be ideal. the supplemental nitrous would be broken down by the turbojet portion of the engine, and surplus o2 liberated would be consumed in the afterburning section.
Another application of this would be to provide an insane ammount of thrust for a short period of time. However, i thought mostly of this as a propulsion system for a space vehicle launcher, sort of like the vehicle used to launch spaceship one, or the x-15. The altitude possible with this type of engine would have to be beneficial for such things...
TurboRocket
http://en.wikipedia.org/wiki/Turborocket
[MisterQED, Apr 21 2008]
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I'm not sure if it would be too heavy. The beauty of burning Oxygen is that it is already carried to the place of use. |
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No one says please anymore, do they? |
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The passengers would giggle if there was a fuel leak. |
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At least they'd die laughing. |
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Half baked. SpaceShipOne used nitrous oxide as its main engine's oxidizer (and the rocket scientist who designed it built one for his bicycle, IIRC) |
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Still, applying it to conventional turbine engines has never been tried, to the limit of my knowledge. |
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the beauty of the system is that the engine never really operates as a true rocket(getting 100% of its oxygen from an oxidizer), but suppliments the air oxygen with an oxidizer. incedentally, i thought of this whole thing while hooked to oxygen in the hospital, not getting all of my oxygen from the tank, but not getting it all from the air, either. |
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I think the fake grammar police have showed up. Real grammar police would talk in complete sentences, like "Please use paragraphs and uppercase letters." or "Please use paragraphs, uppercase letters, and punctuation." and not masked sentence fragments with uppercase letters and punctuation... |
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Let it catapult a passenger jet upwards to wait at the upper stratosphere for the earth to do the turning equivalent to a half travel around the globe intended for a normal jet. A bun for you. |
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I'm not sure if they do this already, but surely all you need to do to compensate for the thinner air is increase the volume of air being sucked in by changing the pitch of the blades. |
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Having said that, there is an ideal altitude for each airframe/engine combination where the advantages/disadvantages of reducing skin friction, lift and engine power balance, so your idea would need to increase engine power to allow higher altitude and therefore lower friction, while not raising weight beyond the capability of the reduced lift and not increasing the airframe size so much that it cancels the benefit of less friction. |
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