Subject: The not so future alternative
From: Rotary Engine
Date: 4/4/2007, 8:22 AM
To: AARotary Engine



Hi Paul

I understand that point of view, and the problem of keeping the levels
of food production is still  challenging!
But if we keep burning fossile combustible we may have the global
warming  worsened.And desert areas are not a good alternative for food
production also yet.
Planting your own fuel may be an alternative if you have the land and
the results in quantity of fuel produced/area planted are getting
better with use of genetic improvement and techniques.
That could help for a smooth transition until future  forms of energy
become easily available.
But anyway, what can you tell us about the use of ethanol in turbines?
Would that be effective?

Castro from sunshining Brazil (never so sunny and so shining since this
crazy weather!)

> >
> > 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.


Hi Paul

I understand that point of view, and the problem of keeping the levels
of food production is still  challenging!
But if we keep burning fossile combustible we may have the global
warming  worsened.And desert areas are not a good alternative for food
production also yet.
Planting your own fuel may be an alternative if you have the land and
the results in quantity of fuel produced/area planted are getting
better with use of genetic improvement and techniques.
That could help for a smooth transition until future  forms of energy
become easily available.
But anyway, what can you tell us about the use of ethanol in turbines?
Would that be effective?

Castro from sunshining Brazil (never so sunny and so shining since this
crazy weather!)

The answer is to plant more trees.

I don't know nothing about gas hog turbine engines burning alcohol :)

Paul Lamar ...No rotor no motor.

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