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



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