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From: "Eric Ruttan" <ericruttan@chartermi.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-724498@logan.com>
Subject: [FlyRotary] Re: Heating the Fuel
Date: Thu, 10 Feb 2005 21:00:58 -0500

I have a few questions on the whole topic.

Are not the tanks vented?  Would not the heated/boiled fuel vent?  And of
course it would vent the important parts of the fuel first.  That condensate
might not be what was boiled.

Have there ever been any successful "wing radiators"?

It would seem to me that a skin inside the wing, about 1/4", sealed, would
not be too hard.  one could run hot oil through it and get real data.

Not very familiar with RV's, I think they fly backwards.  Functional, but
strange.

How hard would it be to rig one up?

I understand carbon fiber can be a better thermal conductor than aluminum.
Very interesting.

Eric

----- Original Message ----- 
From: "Bill Dube" <bdube@al.noaa.gov>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Thursday, February 10, 2005 8:12 PM
Subject: [FlyRotary] Re: Heating the Fuel


> At 04:49 PM 2/10/2005 -0500, you wrote:
> >ALL of this discussion was based on the use of a wet-wing aluminum fuel
> >tank.   The tank is the cooler.
> >
> >Lets assume that the fuel is indeed boiling.  This is analogous to piping
> >steam into a cool metal tank.  The steam will condense on the walls of
the
> >tank (or the fuel in the tank) until the walls of the tank get too
> >hot.  The question is how much heat will this tank with 175 MPH air
> >blowing on it dissipate before getting too hot.   Bill says laminar air
> >will limit this to a great degree.  I don't know.