Half a croissant, on a plate, with a sign in front of it saying '50c'
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Freeze Exhaust
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I am not sure on the scientific aspect of this half baked idea from anormal citizen, but wouldn;t it work if you took exhaust, injected water into it, then froze it, and eburned it, wouldnt that be a new fuel efficient idea? Thoughts, comment, complaints, concerns?
eckoplaya926, Jun 21 2002

Water Injection Kit http://www.frii.com/~maphill/wi.html
The home-made solution. [st3f, Jun 21 2002, last modified Oct 21 2004]


       Efficient combustion results in there being very few components in exhaust that are combustible. Simply feeding the exhaust back into the inlet is a possible option for re-burning, but it would need to be cooled quite a lot first. Adding water and freezing the mixture seems an unnecessary complication.
angel, Jun 21 2002

       Well , this seems to contravene most (if not all) of the laws of thermodynamics, but you could try taking it to Appeal. Make sure you hire a good Murphy's Lawyer as your counsel (q.v.).
8th of 7, Jun 21 2002

       Water doesn't burn very well.   

       Feeding the exhaust back into the inlet is what a EGR valve <Exhaust Gas Recirculator> does.
StarChaser, Jun 21 2002

       There is research on how to capture the exhaust from an engine when it first starts, is cold and doesn't combust fuel completely. The gist is to store the exhaust until the engine warms up or recycle the exhaust until it's more completely burned.   

       So the concept is Baking, but not out of the oven yet.
phoenix, Jun 21 2002

       //from anormal citizen//
most of those can spell.

       //took exhaust... [r]eburned it//
As per StarChaser and phoenix, this is being done/looked into.

       //injected water into it//
Water injection kits, although not common, are not unheard of. They add a fine mist of water to the air/petrol mix which expands massively when the mix is ignited. The engine runs cooler with a higher power output. I don't know enough about this to know why it has never been a mainstream product.

       //froze it//
Unnecessary and a waste of energy.

       eckoplaya926: you seem to have stumbled onto some principles of efficient engine design. Write from what you know, express yourself clearly (including finding a more descriptive title) and your ideas will probably get a better reception.
st3f, Jun 21 2002


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