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My Bong Cooler Build Log (Evaporative Cooling) - Page 11

post #101 of 124
Quote:
Originally Posted by ZytheEKS View Post

Quote:
Originally Posted by RnRollie View Post

i know, and that is the problem with numbers, isn't it? smile.gif

As that indicates that to completely nullify the 1kw PC output one would need an A/C that is rated for +12 million BTU/Hr... smile.gif

Where are you getting those numbers?
X== 0.00094781712087*y

Where:
x == BTU/s
y == watts

So if y == 1000 then x == 0.9478171208702988

If we have 0.9478171208702988 BTU/s then we have 56.869027252217928 BTU/m, and in extent 3412.14163513307568 BTU/H

(Aren't calculators great?)

doh.gifdoh.gifdoh.gif



x 60 x 60 = 3 600 000 j/hr

And then i converted to BTU .... using Watts to BTU iso Joules doh.gif

doh.gifdoh.gifdoh.gif



doh.gif
post #102 of 124
Quote:
Originally Posted by [ShowMe!] View Post

Wow!

This new bong slash volenti design must be more efficient, I am getting some impressive temperature pull down.

Here is the first hour.


http://cdn.overclock.net/7/7c/7c60fe27_wow.jpeg

thumb.gif
Course they are... they are much closer to "swamp" coolers.

Bongs are low efficiency unless you can get very close to drizzle/misting

But if you think what you've got is impressive... see shat happens if you use more surface

Somewhere in the old thread is a design with upright framed microfibre cloth in what is basically a laundry basket ... surface is everyting smile.gif
post #103 of 124
Thread Starter 
post #104 of 124
thumb.gif

Volenti would be so proud of you smile.gif

If i remember correctly, Volenti was the handle of an Aussie guy, and he became a legend overnight when he presented his contraption on Pro-Cooling back in 2002 or 2003.
Pro-cooling is a bit of a mausoleum now, but back then is where the smartest guys of our generation hung out. I think 3/4 of them were engineers. And if one of them would have been able to focus his mind on ONE thing (like world domination) for like longer as 10 minutes, the world would be a different place today smile.gif

Anyway, volenti got quite a following on several board across the world... The volenti inspired Project Rainfall was one of the most interesting implementations in the recent years. And one of the most good looking will be a wooden one (if it ever gets finished)
(Its difficult to find pix that are 10 years old)

But one of the most "elegant" implementations -and not that long ago- was/is Sleeperman's PE tank : http://www.overclock.net/t/1315440/volenti-cooler-using-pe-tank/0_100


Might be worth trying something like it.. you've got two holes in the lid of the coleman already.. use one for air intake, and exhaust to the outside through the "stovepipe". Can even combine: have an upright part in the exhaust, and have a few stretched "towels" in the Coleman smile.gif

Quote:
Originally Posted by [ShowMe!] View Post


http://cdn.overclock.net/9/95/95484d95_down.jpeg


I think this is about as deep as you can go ... unless you can get the RH% down.
Maybe you can run the intake air throuhg a dehumidifier before it goes into the your setup... although you've gotta ask at which point you're using more energy than as you would by making a cabinet around the A/C smile.gif

Gotta run the numbers again ... assuming level air intake temp (from A/C room) , if you could reduce RH% to 10% , you ought to be able to shave another 4 °C off ( 6° if you could reduce to 1%RH) smile.gif

But i think this is about as low as you can go... 14-15-16°C with no load... now its about size i guess... the more surface, the more capacity.

Need to test if this thing can keep a heatload under control. The easiest is to sink something like a 300/600 watts water heating element in the coleman
https://www.colemanair.us/vp_asp/scripts/shopexd.asp?id=662
http://www.amazon.com/Allied-Precision-Premier-742G-Bucket/dp/B000BDB4UG




keep trucking thumb.gif
Edited by RnRollie - 8/10/14 at 12:37am
post #105 of 124
Quote:
Originally Posted by RnRollie View Post

thumb.gif

Volenti would be so proud of you smile.gif

If i remember correctly, Volenti was the handle of an Aussie guy, and he became a legend overnight when he presented his contraption on Pro-Cooling back in 2002 or 2003.
Pro-cooling is a bit of a mausoleum now, but back then is where the smartest guys of our generation hung out. I think 3/4 of them were engineers. And if one of them would have been able to focus his mind on ONE thing (like world domination) for like longer as 10 minutes, the world would be a different place today smile.gif

Anyway, volenti got quite a following on several board across the world... The volenti inspired Project Rainfall was one of the most interesting implementations in the recent years. And one of the most good looking will be a wooden one (if it ever gets finished)
(Its difficult to find pix that are 10 years old)

But one of the most "elegant" implementations -and not that long ago- was/is Sleeperman's PE tank : http://www.overclock.net/t/1315440/volenti-cooler-using-pe-tank/0_100


Might be worth trying something like it.. you've got two holes in the lid of the coleman already.. use one for air intake, and exhaust to the outside through the "stovepipe". Can even combine: have an upright part in the exhaust, and have a few stretched "towels" in the Coleman smile.gif
I think this is about as deep as you can go ... unless you can get the RH% down.
Maybe you can run the intake air throuhg a dehumidifier before it goes into the your setup... although you've gotta ask at which point you're using more energy than as you would by making a cabinet around the A/C smile.gif

Gotta run the numbers again ... assuming level air intake temp (from A/C room) , if you could reduce RH% to 10% , you ought to be able to shave another 4 °C off ( 6° if you could reduce to 1%RH) smile.gif

But i think this is about as low as you can go... 14-15-16°C with no load... now its about size i guess... the more surface, the more capacity.

Need to test if this thing can keep a heatload under control. The easiest is to sink something like a 300/600 watts water heating element in the coleman
https://www.colemanair.us/vp_asp/scripts/shopexd.asp?id=662
http://www.amazon.com/Allied-Precision-Premier-742G-Bucket/dp/B000BDB4UG




keep trucking thumb.gif

OP could go as far as throwing a really low powered AC unit on the intake. Since heat is being vented outside heat load on the evap will be entirely irrelevant. Tt wouldn't matter if he had a 2000BTU AC unit, since the air isn't being recycled. This would not only reduce relative humidity, but also lower the intake temp of the air. This would work both ends on reducing the dewpoint, reducing the dewpoint will make evap even chillier. And since the OP said he has solar panels the power draw won't be an issue, and he could just turn off the evap and only run the fan on the AC unit when he's not using his comp assuming he gets an AC unit that has that feature.

Just spitballing ideas at this point, don't mind me. biggrin.gif
The Laboratory
(11 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8350 Vishera 8-Core 4.0GHz Asus Crosshair V Formula-Z Radeon R9 290X Generic 1333MHz R.A.M. 
Hard DriveOptical DriveCoolingOS
Wester Digital 5400RPM HP CH20L "The Russian Winter" Windows 8 
KeyboardPowerCase
Steel Series Merc Fatal1ty 1000Watt PSU DIY Rig 
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The Laboratory
(11 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8350 Vishera 8-Core 4.0GHz Asus Crosshair V Formula-Z Radeon R9 290X Generic 1333MHz R.A.M. 
Hard DriveOptical DriveCoolingOS
Wester Digital 5400RPM HP CH20L "The Russian Winter" Windows 8 
KeyboardPowerCase
Steel Series Merc Fatal1ty 1000Watt PSU DIY Rig 
  hide details  
Reply
post #106 of 124
Thread Starter 
So it looks like the temps are rock solid!

http://cdn.overclock.net/a/a7/a7f1ffe2_solid.jpeg

Basically maxing out at 16.5c in my 23c temp controlled house.

I ordered at 1100 watt heating element from eBay to for heat testing.
Processed By eBay with ImageMagick, z1.1.0. ||B2

I have a new and hopefully final design in mind.

I want to abandon the bong design all together.

The new layout would look like this.

A 150qt Igloo Cooler.

One air intake with dust filter.

One air exhaust with single pipe routed to outside.

Fans moved to the outside with a fan box so I can have multiple fans in pull configuration, this will eliminate indoor fan noise.

Inside the 48 inch long cooler I will run pvc pipes just like you see in Sleepermans PE Tank Volenti design, and hang rows of Clorox handy-wipes that dip right in the water.

This willl fit right under my computer table, it will be practically silent, will give me about 30 gallons of 16c water, and no heat or humidity dump in to my room.

Then I will have a stable system to try out water cooling and overclocking my cpu and gpu.

SOME EPIC ART!

Edited by [ShowMe!] - 8/10/14 at 3:23am
post #107 of 124
Thread Starter 
So this morning, I did a quick ghetto rigged of what I am planning to do later on a larger scale.

Here are some pics, basically it works, and the only thing I can hear is small drone of the pump that is barely noticeable.

The fans are out side...









Works great, even better then the bong design I would say, 10C drop in 30 min

http://cdn.overclock.net/9/98/98a37f45_30min.png







.
Edited by [ShowMe!] - 8/10/14 at 8:51am
post #108 of 124
Thread Starter 
Well that's it folks, all my test are done.

I will not post any heat test until I build the full size rig.

I want to spend some more time reading and picking the right parts.

When I start a new detailed build their, I will probably start a new thread, and post a link to it here.

Till later all!

smile.gif
post #109 of 124
Nice job man, this is a project I'd like to get done too some day smile.gif
post #110 of 124
any updates?
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