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NoL's Bong Guide - Page 31

post #301 of 322
I'm curious if a setup like this has ever been tested against traditional radiators of varying sizes. The evaporation tower seems to be serving the same function in the loop, and with a large enough radiator you wouldn't need any fans, just the pump (which could, in theory, be quieter since it doesn't have to lift the water so far).
post #302 of 322
Quote:
Originally Posted by lowguppy View Post

I'm curious if a setup like this has ever been tested against traditional radiators of varying sizes. The evaporation tower seems to be serving the same function in the loop, and with a large enough radiator you wouldn't need any fans, just the pump (which could, in theory, be quieter since it doesn't have to lift the water so far).

 



unless you live in a damp, cold climate, evaporative cooling -when correctly dimensioned- will outperform any radiator setup. Because the best you can achieve with radiators is ambient, while evap can actually drop below ambient.

For example:
eg Nevada desert smile.gif
Ambient Temp 30°C , Ambient Humidity 0 - 5% , which results in a dew point between -32°C & -13°C
With an Evap sized & efficiency at 85% => temp drop (air/water) to +/- 15°C (wet bulb temp)

There is a sliding scale with an optimal range, the kicker being what is the dewpoint?
The hotter & dryer the environment, the lower the dewpoint, the "better" evap cooling works before it either saturates the ambient (room) or before the maximum rate of vaporisation of water per sec is reached.

keywords: google, wikipedia, cooling towers, evaporative cooling, swamp coolers , etc , you can get lost in the subject for days on end smile.gif


Note:
it is almost impossible to achieve 85% efficiency with a (self-build) bong cooler, you need to use the "industrial design" & swamp coolers.
Now, if these things weren't so damn bulky & cumbersome smile.gif
Edited by RnRollie - 3/4/14 at 2:30pm
post #303 of 322
Thread Starter 
Quote:
a large enough radiator you wouldn't need any fans
The problem with fanless is it requires increasing the fin space for convection. You end up cooling 1000W's and needing something the size of a desk.
What has been discussed before is the Volenti cooler assembly with towels. It's a way to "dribble" water onto a set of hanging towels over a collection pan, and with very little airflow produce large amounts of evaporation. This is the "smallest" form of the Bong cooler.
post #304 of 322
eh,I've been running one for quite a while now smile.gif
I just use a 92mm fan in the wye thumb.gif
I've also learned that 1/2 cup vinegar per 48-qt cooler full keeps the calcium deposits from getting hard. biggrin.gif
(tapwater) (from well)
I'm running a 1366 chip right now with a 7950 in the loop..still stays below ambient! applaud.gif
 
Thuban Powah!
(14 items)
 
 
CPUMotherboardGraphicsRAM
Xeon X5650 Asus P6X58D-E Sapphire HD 7950 G.Skill Trident-X 2600 CL10 
Hard DriveCoolingPowerCase
Samsung 840 pro Bong cooler / RASA waterblock Rosewill Capstone Gold 750 None 
MouseMouse PadAudio
cheap! Newegg box panel ibeats with onboard. 
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1075T w/2 cores locked @ 4.2+ M4a89GTD-Pro XFX Radeon HD 5870 8gb Samsung ddr3 1600 11-11-11-28@ 8-8-8-24 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility2 40gb WD Blue 500GB Lite-On RASA waterblock 
OSMonitorKeyboardPower
Windows & Linux Samsung 1080p 2 ms Dell Thermaltake TR2-800 
CaseMouse
Cooler Master Elite 330 (was) cheap 
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Thuban Powah!
(14 items)
 
 
CPUMotherboardGraphicsRAM
Xeon X5650 Asus P6X58D-E Sapphire HD 7950 G.Skill Trident-X 2600 CL10 
Hard DriveCoolingPowerCase
Samsung 840 pro Bong cooler / RASA waterblock Rosewill Capstone Gold 750 None 
MouseMouse PadAudio
cheap! Newegg box panel ibeats with onboard. 
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1075T w/2 cores locked @ 4.2+ M4a89GTD-Pro XFX Radeon HD 5870 8gb Samsung ddr3 1600 11-11-11-28@ 8-8-8-24 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility2 40gb WD Blue 500GB Lite-On RASA waterblock 
OSMonitorKeyboardPower
Windows & Linux Samsung 1080p 2 ms Dell Thermaltake TR2-800 
CaseMouse
Cooler Master Elite 330 (was) cheap 
  hide details  
Reply
post #305 of 322
Thread Starter 
If anyone really wants a BIG bong cooler...
Just spotted this on ebay.
http://www.ebay.com/itm/CTS-Cooling-Tower-/321334038891?pt=LH_DefaultDomain_0&hash=item4ad100516b
For 120w of power... well you get 60,000 btu of cooling. That's 5 tons of cooling power. So about 18kw of cooling.
post #306 of 322
Quote:
Originally Posted by NoL View Post

That would work fine. It's the same idea as a catch bottle except I only ever ran distilled water in my bong towers.

So are you still running bong tower cooling now or was it just an experiment for you?
post #307 of 322
Thread Starter 
Quote:
So are you still running bong tower cooling now or was it just an experiment for you?
This is a cooling method I used for my PC back in 2003 and 2004.
When the chips were starting to get very hot (northwood/prescott).
Since then I've only used it for large buffer tank cooling that is used for other industrial processes around the workshop. Sometimes you just need a 55 gallon drum of water cooled.
post #308 of 322
Quote:
Originally Posted by NoL View Post

This is a cooling method I used for my PC back in 2003 and 2004.
When the chips were starting to get very hot (northwood/prescott).
Since then I've only used it for large buffer tank cooling that is used for other industrial processes around the workshop. Sometimes you just need a 55 gallon drum of water cooled.

Water mass is very effective cooling it would take quite some time for a computer to affect 55 gallons of water, but I assume you're talking more than just one.

I was using a Coleman Cooler with 10 gallons of water and ice to run below ambient temperatures then went to peltiers to chill the water replacing the ice and the volume, and eventually dropped the volume down to about 2/3rds of a gallon in an insulated reservoir.

So what other industrial processes are you into?
post #309 of 322
Thread Starter 
When I get time in the workshop (hard these days as I'm a surgical resident) I'm normally doing something stupid.
8kw liquid cooled liquid chiller for a laser array, water cooling for wort chilling, a few heat pumps, that kinda stuff is all on the table right now.
It becomes easier to find heat exchangers (plate or tube) instead of a well sized condenser for many projects, so having a water setup that provides reliable conditions for testing became a high priority. A few pvc valves and such and it became pretty easy to use a big drum for cooling. I got the idea from another vapor phase guy about 5 years ago named Bazx.
post #310 of 322
Wow you are busy!

Check this out when you get some extra time, you seem to me that you would appreciate the effort that's been invested in it.
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