<vrakita (AT) gmail (DOT) com> wrote
Quote:
The principle fuel used as a petrol substitute for road transport
vehicles is bioethanol. Bioethanol fuel is mainly produced by the
sugar fermentation process, although it can also be manufactured by
the chemical process of reacting ethylene with steam. |
Hardly new, it's been around for a very long time. The only there are some
slight downsides, one, that we burn more fissile fuel calories in agriculture
than we grow in food & bio fuels and have done since the 70's. Ethanol is a
fantastic fuel to use though as it's got a nice high octane and a high latent
heat absorption so you can run big boost/high compression and good advance to
get nice power. Unfortunately you also need quite a lot of it compared to
petrol (the Lotus Exige designed with E85 in mind for example uses 6
injectors when on bio fuel rather than 4 on normal petrol) due to the
inherent oxygen content in ethanol, and it's hydroscopic so you can't store
it for any length of time without it becoming useless oh and it can corrode
aluminium alloys as used in fuel systems and engines.