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12-01-2003, 04:58 PM
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#1
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Xtreme Member
Join Date: Feb 2003
Posts: 224
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10-15C water from underground "radiator" pics (56K warning)
"Radiator: 50' of 3/4" pipe."
Last edited by pelikan; 02-24-2005 at 10:01 PM.
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12-01-2003, 05:00 PM
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#2
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Xtreme Member
Join Date: Feb 2003
Posts: 224
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Trench for "radiator." Lined with plastic to hold water, increasing heat transfer.
Last edited by pelikan; 02-24-2005 at 10:02 PM.
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12-01-2003, 05:01 PM
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#3
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Xtreme Member
Join Date: Feb 2003
Posts: 224
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Last edited by pelikan; 02-24-2005 at 10:03 PM.
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12-01-2003, 05:03 PM
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#4
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Xtreme Member
Join Date: Feb 2003
Posts: 224
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The water runs 10 - 15C. If I start prime95 in the morning the water peaks at 15.8C in the afternoon, and then the temp starts dropping at night. I can run it constantly without it ever heating up more than that. I still have to put the top third of the dirt back in the trench - I ran out of steam.
Last edited by pelikan; 12-03-2003 at 06:38 PM.
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12-01-2003, 05:05 PM
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#5
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tl;dr
Join Date: Nov 2002
Location: Alberta, Canada
Posts: 17,404
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neat
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12-01-2003, 05:08 PM
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#6
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Xtreme Addict
Join Date: Jun 2002
Location: Ohio, U.S.A.
Posts: 2,233
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Very unique idea... I'm not sure anyone has done the underground part before! 
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12-01-2003, 05:08 PM
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#7
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Xtreme Addict
Join Date: Nov 2002
Location: Mi. U.S.A.
Posts: 1,235
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Where I am in Mi. the ground frost can go down 4ft.+ some winters.
I'm wondering just how deep I'd have to lay pipe to keep it from freezing up. Can also run a mix involving windshield washer fluid and protect it that way instead.
A very impressive system you've made for yourself. Congrats on some great work.
What is the flow rate of your pump? And did you notice the impact of the pump on your power bill?
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12-01-2003, 05:14 PM
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#8
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Xtreme Addict
Join Date: Nov 2002
Location: Mi. U.S.A.
Posts: 1,235
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What are your CPU & GPU blocks?
Have you tried to push past 2400mhz? With your cooling would not be surprised to see you get even more. If 2400 is your max O/C what was the O/C @ prior to installing this cooling?
What vid card? Is it O/Ced?
Thanks!
Last edited by Craig; 12-01-2003 at 05:18 PM.
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12-01-2003, 05:20 PM
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#9
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Xtreme Member
Join Date: Feb 2003
Posts: 224
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I did this with used parts so it could be cheap:
Maze 2: $15.
DD R9700 gpu block: $25.
Grundfos pump: free
50' 3/4" copper: $15. (it was a bit bent so I got a deal)
Tubing and fittings: $20.
I have a 9800 pro that's going in tonight. I haven't pushed the cpu yet. I was at 2400MHz on air.
The Grundfos pump is rated at 185 watts. It flows somewhere between 2-4 gallons per minute through my system. I used an eheim 1250 first ($30. used) and it worked fine (same temps). But when I put in the gpu block someone gave me the bigger pump so I put that in instead just in case the gpu block would add too much restriction for the eheim.
Craig- No matter the cold in your area it won't freeze if you put the proper amount of anti-freeze in there. Treat it like a car.
Last edited by pelikan; 12-01-2003 at 05:22 PM.
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12-01-2003, 05:51 PM
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#10
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Xtreme Addict
Join Date: Dec 2002
Location: Tempe, AZ
Posts: 1,515
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neat, what about in summer now when you burn your feet on the ground?
__________________
NF7 | Mobile 2400+ | 256MB Twinmos PC3200 BH5 | 9800 PRO | 23384 6989
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12-01-2003, 05:59 PM
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#11
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X. I. P.
Join Date: Jul 2002
Location: Sioux Falls, SD U.S.A.
Posts: 3,152
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Stang_Man: Only the top few inches get warm. Go to the right depth and the soil remains at a near-constant temp.
Hmmm, they're trenching in the water supply to my new home this week. Maybe I should buy some copper pipe to lay in beside the water feed against a future need.
__________________
The plural of "anecdote" is not "data."
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12-01-2003, 06:00 PM
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#12
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Banned
Join Date: Oct 2003
Location: center of hell
Posts: 404
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might be water will turn into blood
Last edited by Vlad Draculea; 05-14-2004 at 07:13 PM.
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12-01-2003, 06:15 PM
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#13
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Xtreme Addict
Join Date: Nov 2002
Location: Mi. U.S.A.
Posts: 1,235
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Quote:
Originally posted by sjohnson
Stang_Man: Only the top few inches get warm. Go to the right depth and the soil remains at a near-constant temp.
Hmmm, they're trenching in the water supply to my new home this week. Maybe I should buy some copper pipe to lay in beside the water feed against a future need.
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I don't claim to know for sure, but I think I recall hearing that at depths below 5ft. that the ground in my area stays between 37-40 degrees year round. 5 ft. amounts to some really heavy duty digging though, need a trenching machine.
sjohnson,
Dont' think twice, go for it! With your location you'll have great temps year round if you put it in nice and deep. And the contractors doing your new home will no doubt be lay'n those other lines below the frost line.
Last edited by Craig; 12-01-2003 at 06:18 PM.
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12-01-2003, 06:18 PM
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#14
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Xtreme Addict
Join Date: Nov 2003
Location: Troy, Michigan Status: Addicted
Posts: 1,170
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Craig, where do you live in michigan, you know how unpredictable our weather is here. Some summers we get like 90F temps. I also comptemplated this idea.
__________________
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With detail settings maxed, full PS and VS support, and highest resolution available, my life runs at 60FPS solid.
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12-01-2003, 06:23 PM
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#15
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Xtreme Addict
Join Date: Nov 2002
Location: Mi. U.S.A.
Posts: 1,235
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I'm in the S.E. corner (Lenawee county, south of Blissfield), about the hotest part of the state. But if it' down in the ground below the frost line it wouldn't matter. Just as the frost never reaches much past 4 ft. here, the heat penetrates even less.
I need to talk to a local contractor or 2 though, before giving this any further consideration.
Where are you at?
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12-01-2003, 06:26 PM
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#16
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Xtreme Addict
Join Date: Nov 2002
Location: Mi. U.S.A.
Posts: 1,235
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pelikan,
Is your pump between the case and the underground section of pipe on the outlet side of the case or on the line flowing into the case?
With a pump that strong the pump could affect your temps if it's on the inlet side. Don't know how much though.
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12-01-2003, 06:45 PM
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#17
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X. I. P.
Join Date: Jul 2002
Location: Sioux Falls, SD U.S.A.
Posts: 3,152
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The depth that stays at a near-constant temperature is below the frost line. How deep that is varies from place to place. Ask any general contractor in your area how deep it is where you live.
__________________
The plural of "anecdote" is not "data."
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12-01-2003, 07:05 PM
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#18
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Xtreme Member
Join Date: Feb 2003
Posts: 224
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I put the pump after the underground section of pipe. I wanted to give the water a slight boost in temperature before it goes inside to help prevent condensation.
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12-01-2003, 08:19 PM
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#19
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Xtreme Member
Join Date: Jan 2003
Location: Sweden
Posts: 534
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Quote:
Originally posted by isp
Very unique idea... I'm not sure anyone has done the underground part before!
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Well it actualy have been done before like http://www.dwpg.com/content.php?cont...77&orgartid=57
pelikan
Nice project, nice watertemps. Any though on going zero fans?
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12-01-2003, 08:28 PM
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#20
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Xtreme 3DTeam Member
Join Date: Jul 2003
Location: Mason, MI... USA
Posts: 1,288
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If your water table is 4' or less it's really easy to do this with a large resevoir. Just make sure the top of the tank is below water.
Those hotwater circulation pumps are the cats a$$ for this too, very quiet and can push some head but shop around for a good deal. Some of them are very overpriced.
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12-01-2003, 09:20 PM
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#21
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Xtreme Member
Join Date: Feb 2003
Posts: 224
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Penti - I took most of those fans out since the photos.
Poki - Yeah circulation pumps are very pricey. The Grundfos that was given to me is top of the line. Its all stainless steel inside. These pumps can last 20 years or more.
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12-01-2003, 09:31 PM
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#22
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Xtreme 3DTeam Member
Join Date: Jul 2003
Location: Mason, MI... USA
Posts: 1,288
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Pelikan, that's a nice system you have going there.
Make sure you oil it at the specified intervals, i think most are suppose to be serviced at 3 month intervalswith 100% duty. 2-3cc's of oil is all that's required.
I was the superintendent at a few processing plants that used those for many applications and found many vendors were raping people on prices. It's not uncommon to get quoted $350 for a unit.
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12-01-2003, 09:39 PM
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#23
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Xtreme Member
Join Date: Feb 2003
Posts: 224
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Poki- Thanks for the tip. I didn't know about oiling it.
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12-01-2003, 09:48 PM
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#24
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HVAC/R Engineer
Join Date: Nov 2003
Posts: 4,077
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Wow a geothermal pc cooler!!!!! New one on me... Really I have seen a home Heat pump set up the same...
Grundfoss pumps wholesale...$120 to 160
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12-02-2003, 03:46 AM
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#25
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Xtreme Member
Join Date: Aug 2003
Location: Spain
Posts: 195
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You should get some pelts in that system. With 15C water temp the pelts should work great. Really nice project congrats!!
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