Em 27/1/2011 09:46, Michael Watterson escreveu:
> On 27/01/2011 11:10, William "Chops" Westfield wrote:
>> When you see someone say "One of the most exciting things about
>> hydrogen is that it is virtually cost free since one can extract
>> hydrogen from distilled water", run away quickly...
>>
> until we have cheap household or car installable fusion reactors.
>
> In fact unless you live in a country where a significant part of=20
> Electricity is not made from imported hydrocarbons, any electric car is=20
> daft.
>
> Loss in Electricity Transmission
> Loss in battery recharging.
>
> Better to have  a Diesel engine.


I'm not sure, but I think that diesel engines are more efficient than
gasoline engines because of the cycle it uses (the Diesel Cycle is
closer to the Carnot Cycle than the Otto Cycle).

Would it be advantageous to make an engine burning gasoline but running
on the Diesel Cycle?
The compression ratio could be much increased without early-detonation
because there is no fuel inside the cylinder in the compression stroke.
Isn't the water-injection trick used to allow higher compression ratio
so the efficiency increases?


Best regards,

Isaac

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