Go Back   Pro/Forums > ProCooling Technical Discussions > General Liquid/Water Cooling Discussion
Password
Register FAQ Members List Calendar Chat

General Liquid/Water Cooling Discussion For discussion about Full Cooling System kits, or general cooling topics. Keep specific cooling items like pumps, radiators, etc... in their specific forums.

Reply
Thread Tools
Unread 10-03-2003, 01:42 PM   #1
maxim
Cooling Savant
 
maxim's Avatar
 
Join Date: Jan 2003
Location: VA Tech
Posts: 111
Default how does humidity affect cooling?

after i put my new block in, i got 17deg air-cpu diff. it was very consistent up until 3 days ago. that is when i started leaving my window open for the night because i sleep at my GF's house anyway. i thought, why not let mother nature do its work since it's getting really cold here. now my diff is 20C (!!!), has been like that for a few days. i noticed that my room's humidity went from 60 to 80. room temp is 16C, CPUburn gives me 36C; with the 60% hum i was having room temp of 26C and CPU of 43C. can higher humidity decrease radiator's efficency? it could be other things, like something stuck in the WB, dust in the rad fins, something stuck in the pump, but i wanna know if hum can actually have a negative effect before i start taking it all apart.
__________________
1700@2050 (205x10@2.0v)
Abit NF7-S rev2.0
3x 512 Corsair XMS3200C2 11-3-3-2
ATI Radeon 9800 Pro 128MB
maxim is offline   Reply With Quote
Unread 10-03-2003, 02:43 PM   #2
maxim
Cooling Savant
 
maxim's Avatar
 
Join Date: Jan 2003
Location: VA Tech
Posts: 111
Default

ok, false alarm i broke the piggy bank and got another Cnurse. air temp just before the rad is 22C and CPUburn (after an hour or so) is 39C. so the 17deg diff is back. my guess would be that the room thermometer i was using got affected by the sudden changes in air temp. we had freezing temps last night! phew hey, at least now i can know my water temp as well...
__________________
1700@2050 (205x10@2.0v)
Abit NF7-S rev2.0
3x 512 Corsair XMS3200C2 11-3-3-2
ATI Radeon 9800 Pro 128MB
maxim is offline   Reply With Quote
Unread 10-03-2003, 02:58 PM   #3
Got KarmA?
Cooling Neophyte
 
Got KarmA?'s Avatar
 
Join Date: Jun 2003
Location: Too far from Canada ...
Posts: 95
Default

Humidity will only affect cooling with an evaporative cooling tower.

such as mine

This is why I have it exhaust out the window
Got KarmA? is offline   Reply With Quote
Unread 10-03-2003, 03:13 PM   #4
maxim
Cooling Savant
 
maxim's Avatar
 
Join Date: Jan 2003
Location: VA Tech
Posts: 111
Default

that's what i thought, but wanted to make sure im not missing anything but whatever, i have 2 gauges now, so i'll know what's going on, without having to rely on that stupid thermometer.
__________________
1700@2050 (205x10@2.0v)
Abit NF7-S rev2.0
3x 512 Corsair XMS3200C2 11-3-3-2
ATI Radeon 9800 Pro 128MB
maxim is offline   Reply With Quote
Unread 10-04-2003, 10:18 AM   #5
snowman88
Cooling Neophyte
 
Join Date: Sep 2003
Location: Singapore
Posts: 5
Default

side tracking abit here...

how does humidity affect tec-ing?
a rig in singapore compared to a rig in some wintery country, the amount of condensation formed...is it a very significant extra amount? a european prommie reseller mentioned that prospective singaporean buyers should get the heating element, would more grease do the job just as well?
snowman88 is offline   Reply With Quote
Unread 10-04-2003, 10:22 AM   #6
Got KarmA?
Cooling Neophyte
 
Got KarmA?'s Avatar
 
Join Date: Jun 2003
Location: Too far from Canada ...
Posts: 95
Default

well the dew point will vary based on humidity I believe ... either way, when you've got something that far below ambient temperatures you're going to have condensation buildup unless you A) keep humidity at 0%, which would be a hard task, or B) seal it off with a heat insulating substance, like neoprene.
Got KarmA? is offline   Reply With Quote
Unread 10-04-2003, 11:25 AM   #7
Phant0m51
Cooling Savant
 
Join Date: May 2003
Location: Utah
Posts: 160
Default

Technically, the humidity can cause insignificant variations. It isn't extreme, but it could be noticeable. The more humidity, the more water in the air. The more water in the air, the thinner the air is (water particles are more spread out than oxygen/nitrogen/all other gases). So on a very humid day your rig might not cool as well, because it's actually forcing less air through the rad. On a very low humidity day, it might cool better.

But we're probably talking MAYBE .5* C from extreme humidity, to extreme dry.

You also have to factor in that on a Humid day, because your fans are forcing less air, they are probably spinning faster. On a less humid day, they are probably spinning slower, because of the thicker air. So it's probably still pushing the same amount of cooling power through the Rad.
Phant0m51 is offline   Reply With Quote
Unread 10-04-2003, 12:40 PM   #8
bigben2k
Responsible for 2%
of all the posts here.
 
bigben2k's Avatar
 
Join Date: May 2002
Location: Texas, U.S.A.
Posts: 8,302
Default

...and here I was thinking the reverse!

More humid air would have a higher heat capacity, and since the water is in microform, it should be able to allow for a quick transfer of heat. All it's going to do though, is be a little more efficient at reaching the ambient temperature.

You have to keep in mind that a PC would typically be in a house, where the humidity would range between 20 and 50%.
bigben2k is offline   Reply With Quote
Unread 08-01-2005, 04:39 PM   #9
Ninjan
Cooling Neophyte
 
Join Date: Nov 2003
Location: Sweden
Posts: 5
Default

Well, is there any tests made that confirms either of the statments abowe? Or is some of them a well known fact?
Since I am on the brink to do some testings on my water rig is it maybe an idéa to bring the setup to the "climate controlled lab" at work? Any thoughts?
Ninjan is offline   Reply With Quote
Unread 08-01-2005, 04:56 PM   #10
Les
Cooling Savant
 
Join Date: Oct 2001
Location: Wigan UK
Posts: 929
Default

Some related thoughts
Les is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 01:25 PM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
(C) 2005 ProCooling.com
If we in some way offend you, insult you or your people, screw your mom, beat up your dad, or poop on your porch... we're sorry... we were probably really drunk...
Oh and dont steal our content bitches! Don't give us a reason to pee in your open car window this summer...