Evaporative Cooler (Bong) results.

Gandalf · 24th December 2001, 10:38 AM

I removed the radiator and added an evaporative cooler to see if they have promise. The setup is showerhead attached to handle of bucket with a 14" drop to water level in bucket, with 1/2 of the holes in the showerhead taped up so that water flows evenly out of the remaining holes.

Result at idle - 2 degrees below ambient!!

Result at full load - very slowly rises to the same temps as the radiator.

Today I'll get some plastic downpipe and a Y joint and go to about 3 feet of drop and add a fan. Should handle full load better then.

CPU heat output is approx 106 watts by radiant.

Ambient at this moment in the workdshop is 32.2 degrees, and it's hotter in the afternoon.

cerberos · 24th December 2001, 1:36 PM

kewl sounds nice, i'm about to finish my water cooler and i realy hope by built in bong works well, the case is a bit of a bohemoth though, to mid towers bolted together

Dedge · 24th December 2001, 2:09 PM

Can't wait to see some pics Gandalf.

NeXuS · 24th December 2001, 6:06 PM

What bout you go thru the radiator, then thru the bong cooler?

just a thought

Volenti · 24th December 2001, 6:36 PM

Quote:

What bout you go thru the radiator, then thru the bong cooler?

The only time where this would work would be when the water leaving the waterblock was substancially hotter than ambient. Since a good bong will keep the water 2-3 degrees below ambient, this means that you'd need to have a 5-6 degree rise in water temp in the block, for this to be usefull.

Of course if your getting a 5+ degree rise through the block, you might want to re-think your cooling design

Gandalf · 24th December 2001, 8:12 PM

Too late for the hardware store tonight. I'll have to wait a couple of days for the downpipe.

I changed pumps from the 1100 lph to the 2700 lph bilge pump and got much better water pressure and flow - 4 degrees cooler at idle (ambient 33 degrees, cpu 29 degrees!!) - now to see what it will do while folding.

Pictures! My camera is a Canon EOS not a digital. Will take some of the finished setup though.

Gandalf · 25th December 2001, 12:27 AM

Temps have settled down nicely after several hours straight folding.
ambient 32 degrees,
CPU 42 degrees,
motherboard 36 degrees.

It just doesn't look as if this little shower should provide that much cooling.

Radiate tells me I'm putting out 102 watts, and the cooling system has a c/w rating of .10

I wonder what the figures will be with almost 3 times the fall - and with fan assist added.

Vindictive · 25th December 2001, 6:40 AM

A good bong will keep your cpu at ambient or lower.. And won't move from idle to full load :P

That's why I'm building a beast

(of a bong)

cerberos · 25th December 2001, 7:43 AM

i'm hoping my celeron on the bong will never see what ambient is again

Greedy Guido · 25th December 2001, 11:51 AM

I performed some mods to my cooling tower a few days ago and have seen a massive improvement.

It was 39.5°C in Brisbane yesterday but my system never got above 37°C (it was also fairly humid). My system temp is currently 40°C and my CPU is only 33°C. I think my tower is approaching wet bulb temp (lower limit for a cooling tower). Might borrow works testing equipment for cooling towers and see what I get.

I have a 750 Duron running at 1000 at 1.85V. I usually egt about a 3°C rise from idle to full load.

I hooked up the same cooling tower to a mates Athlon 1300 running at 1466 and peaked at 39°C running 3Dmark2001.

Gandalf · 25th December 2001, 12:07 PM

Quote:

Originally posted by Greedy Guido
I performed some mods to my cooling tower a few days ago and have seen a massive improvement.

It was 39.5°C in Brisbane yesterday but my system never got above 37°C (it was also fairly humid). My system temp is currently 40°C and my CPU is only 33°C. I think my tower is approaching wet bulb temp (lower limit for a cooling tower). Might borrow works testing equipment for cooling towers and see what I get.

I have a 750 Duron running at 1000 at 1.85V. I usually egt about a 3°C rise from idle to full load.

I hooked up the same cooling tower to a mates Athlon 1300 running at 1466 and peaked at 39°C running 3Dmark2001.

Great results!!

HyDrA · 25th December 2001, 6:15 PM

are bong coolers loud? or is it a pleasant sound of water falling?

Volenti · 25th December 2001, 6:21 PM

Quote:

are bong coolers loud? or is it a pleasant sound of water falling?

It depends on the design, and material that it's made from, as well as the type and size of fan that you use.

With a clever design you could minimize the noise a lot.

HyDrA · 25th December 2001, 6:27 PM

Okay...

Ah, how much does it cost to construct? Less than buying a radiator? I like making my own things, so construction doesnt bother me.

How would i make it quieter?

Gandalf · 25th December 2001, 6:39 PM

Here's the first article on Bong coolers - compares them to two radiators and describes the construction.
http://www.overclockers.com/articles389/

24th December 2001, 10:38 AM	#1
Gandalf Member Join Date: Jun 2001 Location: Brisbane Posts: 371	Evaporative Cooler (Bong) results. I removed the radiator and added an evaporative cooler to see if they have promise. The setup is showerhead attached to handle of bucket with a 14" drop to water level in bucket, with 1/2 of the holes in the showerhead taped up so that water flows evenly out of the remaining holes. Result at idle - 2 degrees below ambient!! Result at full load - very slowly rises to the same temps as the radiator. Today I'll get some plastic downpipe and a Y joint and go to about 3 feet of drop and add a fan. Should handle full load better then. CPU heat output is approx 106 watts by radiant. Ambient at this moment in the workdshop is 32.2 degrees, and it's hotter in the afternoon. __________________ "The best game is a new Linux distro" www.qldcorp.net

24th December 2001, 1:36 PM	#2
cerberos Member Join Date: Jun 2001 Location: melboure NE Posts: 1,765	kewl sounds nice, i'm about to finish my water cooler and i realy hope by built in bong works well, the case is a bit of a bohemoth though, to mid towers bolted together __________________ May all your multipliers stay unlocked

24th December 2001, 2:09 PM	#3
Dedge Member Join Date: Dec 2001 Location: Brisbane, QLD Posts: 1,750	Can't wait to see some pics Gandalf. __________________ http://tatey.com "Just the other day I was compressing Simon and Garfunkel's "The Sounds of Silence" to /dev/null, and it came back much truer to the name than the original."

24th December 2001, 6:06 PM	#4
NeXuS Member Join Date: Jun 2001 Location: Southern Suburbs, Melbour Posts: 489	What bout you go thru the radiator, then thru the bong cooler? just a thought __________________ Gaming: C2D E8500 @ 3.6G\|GA-G33M-DS2R\|8G Dominator PC8500\|HD4870 512Mb\|3x Samsung F1 1Tb Work: Phenom 9850\|GA-MA78GM-S2H\|8G Corsair PC6400\|XFX 7950GT 512M Passive Server: 2x Opteron 146\|4G DDR Reg\|Tyan K8WE\|Areca ARC-1260\|9x 1Tb HDD Raid6 Media: Dothan 2.1Ghz\|Commell LV-677\|2G\|ASUS 8400GS Passive Laptop: Lenovo T400\|4GB\|P8600\|250Gb Vertex\|500Gb\|3G\|14" LED BL

24th December 2001, 8:12 PM	#6
Gandalf Member Join Date: Jun 2001 Location: Brisbane Posts: 371	Too late for the hardware store tonight. I'll have to wait a couple of days for the downpipe. I changed pumps from the 1100 lph to the 2700 lph bilge pump and got much better water pressure and flow - 4 degrees cooler at idle (ambient 33 degrees, cpu 29 degrees!!) - now to see what it will do while folding. Pictures! My camera is a Canon EOS not a digital. Will take some of the finished setup though. __________________ "The best game is a new Linux distro" www.qldcorp.net

25th December 2001, 12:27 AM	#7
Gandalf Member Join Date: Jun 2001 Location: Brisbane Posts: 371	Temps have settled down nicely after several hours straight folding. ambient 32 degrees, CPU 42 degrees, motherboard 36 degrees. It just doesn't look as if this little shower should provide that much cooling. Radiate tells me I'm putting out 102 watts, and the cooling system has a c/w rating of .10 I wonder what the figures will be with almost 3 times the fall - and with fan assist added. __________________ "The best game is a new Linux distro" www.qldcorp.net

25th December 2001, 6:40 AM	#8
Vindictive Member Join Date: Jul 2001 Location: Brisbane, Australia Posts: 522	A good bong will keep your cpu at ambient or lower.. And won't move from idle to full load :P That's why I'm building a beast (of a bong)

25th December 2001, 7:43 AM	#9
cerberos Member Join Date: Jun 2001 Location: melboure NE Posts: 1,765	i'm hoping my celeron on the bong will never see what ambient is again __________________ May all your multipliers stay unlocked

25th December 2001, 11:51 AM	#10
Greedy Guido Member Join Date: Dec 2001 Location: Brisbane Posts: 433	I performed some mods to my cooling tower a few days ago and have seen a massive improvement. It was 39.5°C in Brisbane yesterday but my system never got above 37°C (it was also fairly humid). My system temp is currently 40°C and my CPU is only 33°C. I think my tower is approaching wet bulb temp (lower limit for a cooling tower). Might borrow works testing equipment for cooling towers and see what I get. I have a 750 Duron running at 1000 at 1.85V. I usually egt about a 3°C rise from idle to full load. I hooked up the same cooling tower to a mates Athlon 1300 running at 1466 and peaked at 39°C running 3Dmark2001. __________________ OCAU Extreme Cooling Club H2O Member You can pick your friends and you can pick your nose. But you can't pick your friends nose

25th December 2001, 6:15 PM	#12
HyDrA Member Join Date: Jul 2001 Location: SA Posts: 3,239	are bong coolers loud? or is it a pleasant sound of water falling? __________________ Chris hydraah.net lawlmygawd.com

25th December 2001, 6:27 PM	#14
HyDrA Member Join Date: Jul 2001 Location: SA Posts: 3,239	Okay... Ah, how much does it cost to construct? Less than buying a radiator? I like making my own things, so construction doesnt bother me. How would i make it quieter? __________________ Chris hydraah.net lawlmygawd.com

25th December 2001, 6:39 PM	#15
Gandalf Member Join Date: Jun 2001 Location: Brisbane Posts: 371	Here's the first article on Bong coolers - compares them to two radiators and describes the construction. http://www.overclockers.com/articles389/ __________________ "The best game is a new Linux distro" www.qldcorp.net