Keel Cooling - Page 2 - RC Groups
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Jul 28, 2009, 11:13 PM
If you cant find it Build it!
LONGBIKE's Avatar
Very nice clean work there toes!
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Jul 29, 2009, 01:59 AM
USA'd ex Brit
toesup's Avatar
Quote:
Originally Posted by Kmot
But I am betting the usual 'suck and discharge' cooling would actually keep the components cooler than this enclosed system.
I would of thought the cooler's having a free flow of water around them under the boat would be more efficient than the 'suck and discharge' (can you say that on a family forum? ) system.

I've stuck all the components together tonight and started to clean them up..

I'm going to need to make up some guards to keep all those logs (twig's ) from damaging the pipework.
Jul 29, 2009, 02:06 AM
from downunder Downunder
col_426's Avatar
So, Ralph, do you have pictures of these on the real boat so that we can compare your marvelous workmanship?
Jul 29, 2009, 02:21 AM
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Last edited by Trakka; May 28, 2011 at 09:16 PM.
Jul 29, 2009, 02:23 AM
USA'd ex Brit
toesup's Avatar
Quote:
Originally Posted by col_426
do you have pictures of these on the real boat so that we can compare your marvelous workmanship?
These are under Crowley Scout
Beyond the Voith drives in the center of the pic
Jul 29, 2009, 05:37 AM
Registered User
I have seen several pics of working craft out of the water and a lot of them seem to use a simple metal combing a piece of metal slightly wider than the cooler is thick to protect them yet still be able to get some interaction between the cooler and the surrounding water.
Foo
Jul 29, 2009, 01:03 PM
**NOT GUILTY**
Capt.Crash's Avatar
Nice job Toes!
Jul 30, 2009, 01:17 AM
Registered User
Here's a picture of an old school keel cooler.
Jul 31, 2009, 05:14 PM
Registered User
Whew wayyyy back in RC Boat Modeler IIR someone used pipes recessed into the sides of the hull to cool a tug internally in the closed portion of the system it had a windshield washer pump that circulated the fluids (ok for a family website?) and for cooling a mixture of alcohol and water was used in the closed portion of the system. I donít know if it is helpful but a neat project and I wish I had the fabrication skills you and Umi possess.
Jul 31, 2009, 05:35 PM
USA'd ex Brit
toesup's Avatar
Using some brass angle and some copper mesh, i have made up the guards for the pipework.
The soldering isn't as tidy as i would of liked, but its going to be under water most of the time...

Ok.. Question...

What color paint gives the best transfer of cool / heat?.. or should they be left 'Au naturel'?.
Jul 31, 2009, 05:39 PM
Registered User
If it is all nonferrous metals leave it "au naturel"

Paint isolates...
Jul 31, 2009, 05:45 PM
no wings any more, just dust!
Ghost 2501's Avatar
Quote:
Originally Posted by toesup
Using some brass angle and some copper mesh, i have made up the guards for the pipework.
The soldering isn't as tidy as i would of liked, but its going to be under water most of the time...

Ok.. Question...

What color paint gives the best transfer of cool / heat?.. or should they be left 'Au naturel'?.
its below the water, no one's gonna know. i'd paint them the same color as the antifouling, just as per real ship
Jul 31, 2009, 05:48 PM
Registered User
CornelP's Avatar
A good heat transfer paint (tested on other applications) is a "Zinc Aluminum" primer. Silver color, great covering, good heat transfer.
Jul 31, 2009, 05:50 PM
3 Blades to the Wind
Shaun Hendricks's Avatar
Black is heat absorbant, white/silver is a radiant. I'd go for metallic silver like a chrome. Besides, you can claim you have "Chrome Pipes"...


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