I have to point out that a well know
gasoline/water emulsion is napalm. While I think
he wants to make an efficient fuel, water
expansion at engine temperatures is phenomenal
(about 1400 to 1) and was used in the P-51 mustang
fighter planes to nearly double the output power.
However, those engines has a service life of about
30 hours in that mode.Here is the issue, while I
am very happy to provide help to responsible
people in such endeavors, I cannot verify the
safety or responsibility of the people involved.
Many people have been hurt or killed by vapor
explosions and gasoline is a classic vapor
explosive in air. Gas/water or worse gas/alcohol
mixtures have substantially lower vapor pressure
--in fact gasoline and tert-butyl alcohol will
boil at 70F.
On the other hand, I think this
line of questioning is very interesting and would
make a good science fair project.
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