Perry Mick wrote:

Here is a quick drawing of what I had in mind for the new LEZ rad. It would
double rad size in the same dimensions I have now, which by the way are 13.5
wide by 17.5 long. Thickness would double from 2" to 4". This is about the
only way to get sufficient rad for high power operation in a LEZ. I also
like having both ports next to each other just below the water pump, really
short plumbing runs.

Perry

I don't think you need four inches Perry. I think about two inches would
be plenty using one inch or even 1.25 inch wide water tubes.
If done right this would be more effective than the one you have now.
You might have less cooling with four inches as it might trigger
the NACA duct to bypass mode.

Make sure the top is insulated from the bottom on the right side.
I modified your 3D to show this. People have built these with
out doing this with less than satisfactory results.

The hot fluid goes in the back side and comes out the cool air side
for maximum effectiveness. Ed Klepeis built one of these already.

Paul Lamar
 
The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2004 All world wide rights reserved.