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HELP: Radiator selection for evaporative cooling.

post #1 of 17
Thread Starter 
I have toyed around with the idea of a "Bong" style cooler, but the fact that it permits foreign debris from the air into the loop has kept me from opening my wallet to buy the parts. What I have decided to do instead, is use the same evaporative cooling principal and apply it to the fins of a radiator. The hold up at the moment is radiator selection. I need to know what type of radiator will not rust/erode with water on the fins. I imagine that something like tin would make for horrible rust issues, but something like a 100% copper would not rust, but may oxidize. Is stainless steel an option? Should I be looking at radiators designed for something other than computers?

Help: point me at a radiator that wont deteriorate with high moisture content on the outside of the rad!!!!!
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Blue540
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post #2 of 17
Perhaps if you could give an idea of exactly how you plan on using this rad you'd get better answers.

Spray water into it?
Submerge it in the cool water from the bong?
?????

Perhaps a sketch?
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post #3 of 17
Thread Starter 
Quote:
Originally Posted by billbartuska View Post

Perhaps if you could give an idea of exactly how you plan on using this rad you'd get better answers.

Spray water into it?
Submerge it in the cool water from the bong?
?????

Perhaps a sketch?

Thanks for the interest and reply.

Custom insulated tank (I am thinking L-240mm x W-360mm x H-240mm internal for rads)1/2 filled with water, fan pushed air enters through ports on 2 sides. radiator with same dimensions as footprint of insulated tank is mounted above the air ports. Series of copper or cpvc pipes with cheap fuel line injectors is mounted above the radiator. Lid has a short (6" or so) vent stack for heat/moisture to leave. The radiator will have ports (quick connects) to attach to CPU/GPU loop. Secondary pump will pull water from the bottom of the tank and push it back through the copper pipes/injection ports. Also considering installing a ~ gallon tank on the top so I can monitor/fill without pulling the lid off.

While the radiator will not be submerged, it will be saturated by water 24/7 from the injection ports. From what I know about industrial evaporation units, which is not much, the more surface area you are able to push water+air over, the more you cool.

I am attempting to improve three things that have put me off of a "bong" build at this point: 1.Increase overall surface area. 2.Keep foreign materials out of the main CPU/GPU loop. 3.Decrease overall footprint.

I would like to just pick up a couple 360x120 fat boy radiators, but I dont know if something like EK XTX 360s would have fins rusting/oxidizing from being wet 24/7.

Sorry I dont have a sketch. I will probably draw one up after I have a gist of what my options for radiators are.
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Blue540
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x99
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post #4 of 17
You haven't really thought this out.

Automotive fuel injectors won't work, at least without spending a lot of money on a pump and controls.

Why do you need a rad in the first place?

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Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
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post #5 of 17
what about a cheap pump and spray bottle atomizers? he spray bottles from hair spray and stuff are cheap, throw out a nice mist that can be placed right above the rad in the first config. hooked up to a pump with enough head pressure im sure this could work.
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post #6 of 17
I dont know much about this.... But when i was helping a friend build a RC turbin we used the heads from Paint sprayers like they use in paint shops. The nozzels would do the trick, all you need to do really is build enough pressure for them to work properly!!





I really like the idea though! i shall keep a close eye on this thread. thumb.gif
post #7 of 17
Quote:
Originally Posted by Demondrumer View Post

I dont know much about this.... But when i was helping a friend build a RC turbin we used the heads from Paint sprayers like they use in paint shops. The nozzels would do the trick, all you need to do really is build enough pressure for them to work properly!!





I really like the idea though! i shall keep a close eye on this thread. thumb.gif

thats a good idea, but might require substantial pressure to atomize the water fully!

hahaha that would be cool though!
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post #8 of 17
It would be interesting to see!! i imagin it would be a loud setup! but nonetheless build this thing!! thumb.gif
post #9 of 17
Hair spray cans have about 40 psi. 40 psi pump = $$$$
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My System
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Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
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post #10 of 17
You could possibly use an in tank full pump for a car? Puts out plenty of pressure..
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