>
> Paul and Doug,
>
> I've added compressor horsepower to the Turbochart spreadsheet. This
> feature could actually come in handy to find the right size turbine for
> turbocompounding.
>
> In the example shown, the engine is a 2-rotor running AGE 85 ethanol,
> making 421 hp at sea level with a manifold pressure of 41 in/Hg.
>
> At 15,000 feet, this setup would have a compressor pressure ratio of
> 2.45 and the compressor would use 38 hp, assuming adiabatic efficiency
> of 0.7, which is what the chart shows for the Rotrex supercharger.
>
> I'm going to add a section for the exhaust side as well, but that is
> more difficult.
>
>
> Regards,
>
> Gordon.
>
> I know you guys are serious but.............
> If you think auto gas is hard to find on a cross country try ethanol.
> Only Doug will take the ethanol factory with him as he flies around the
> world. If you think 8 hours to recharge your electric car is long try
> 8 weeks to get enough ethanol to fly for the next 8 hours.
> What are you going to do while the grass grows Doug?
> I guess you will have time to learn the local language.
>
> We need to make do with the fuel that is readily available.
>
> Paul Lamar
>


Aloha from Brazil Paul

I believe ethanol may be an affordable and ecologic alternative in a
near future in US.

Down here, it is already easy to find anywhere, at 1/4 the price of AVGAS.

President Bush, although having part of his family's history and fortune
related  to oil exploration, was last month in Brazil, and part of focus
of his visit was in ethanol production technology (from sugar cane,
that is  more effective and economic  than corn in that purpose) and
about importing Brazilian exceeding production of ethanol to US.

It is a clean form of energy, (at least cleaner than from oil resources)
and may create more jobs than the oil production does.

I hope that with mutual cooperation, ethanol will be a very clean part
of energy?s supply solution very soon!

By the way, do you believe ethanol could be used in small turbine
engines like Solar T-62 for example? Was it tried already? Results?

PS: With proper Ignition systems, a piston or rotary engine could burn
gasoline, ethanol or a mixture in any proportion. I believe the
compression rate in  ethanol engines is about the same  the compression
rates of AVGAS engines.(Please correct me if I am wrong)

Castro

The real cost of ethanol is higher than gasoline world wide.
Tax policy dictates the consumer cost in Brazil and through out the
world. Here in North America we have vast reserves of tar sands.
As the world wide price of crude oil goes higher it becomes
economically possible to extract the crude oil from tar sands.
That will happen long before ethanol will be widely distributed
as engine fuel as it competes for arable land with food production.

Now if Brazil wants to sell us cheap ethanol below our cost I am
sure we will buy it. That of course will raise the price of food
in Brazil and keep the price of food in the U.S. down if we had
to grow large quantities of sugar cane. There is no free lunch
pardon the pun.

Paul Lamar ...No rotor no motor.

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