Summer Shutdowns

[Untitledone]

Geothermal loops are calculated at 65W/m so for a 1000w computer you would need 15m of cooling hose, (the calculation starts at the depth of the ground water level, so if your ground water is 4' below the surface in the winter, then you need about 50' of hose buried)
typical house cooling of 10kw is about 200m (600') of buried hose.
that will constantly supply you with 55*F water.

Hey thanks for the info. Surprisingly, most of the information I have read goes over a lot of information, but none of them gave any specific numbers. My current folder pulls 158W from the wall so I probably dont need a huge amount. I was thinking of doing a large enough loop for my room (approximately 10ft x 15ft), and a decent oversize to accomodate increases in computing heat.

 

[Wolfie]

Hey thanks for the info. Surprisingly, most of the information I have read goes over a lot of information, but none of them gave any specific numbers. My current folder pulls 158W from the wall so I probably dont need a huge amount. I was thinking of doing a large enough loop for my room (approximately 10ft x 15ft), and a decent oversize to accommodate increases in computing heat.

I know what you mean, I was looking at it and had to dig for some specifics of sizing a system and cooling loop. there are hardly any numbers, then I found a grass roots site talking about using radiators to cool your house.
I think the tough parts is the materiel used for the cooling pipe, as plastic pipes are typically very insulated, and the water will not cool if pushed through at any speed.
just burying a coiled garden hose will not work, but a copper pipe coil will work well for a period of time (until it corrodes through.)
because as you push water through the system it heats the soil up around the pipe, it takes more length to cool the water to a lower internal temperature.

 

[Untitledone]

I know what you mean, I was looking at it and had to dig for some specifics of sizing a system and cooling loop. there are hardly any numbers, then I found a grass roots site talking about using radiators to cool your house.
I think the tough parts is the materiel used for the cooling pipe, as plastic pipes are typically very insulated, and the water will not cool if pushed through at any speed.
just burying a coiled garden hose will not work, but a copper pipe coil will work well for a period of time (until it corrodes through.)
because as you push water through the system it heats the soil up around the pipe, it takes more length to cool the water to a lower internal temperature.

Could you PM me the website. I would be interested to read it. I will have to check out different types of pipes. If I do go copper, I would probably coat it with a thin layer of heat conductive paint to increase the lifespan. However, being underground it will not be exposed to sun light, or as much oxidization. I definitely will be doing more research and testing before I jump into it. I don't want to dig a big hole for no reason.

 

[R-Type]

Could you PM me the website. I would be interested to read it. I will have to check out different types of pipes. If I do go copper, I would probably coat it with a thin layer of heat conductive paint to increase the lifespan. However, being underground it will not be exposed to sun light, or as much oxidization. I definitely will be doing more research and testing before I jump into it. I don't want to dig a big hole for no reason.

I was going to suggest the painting. Please make a thread here if you do decide to do it so we can follow along.

 

[rick5127]

Well you guys have piqued my interest. I have a large area in the yard that I could put loops in. Not sure what I would need to do this. Wonder if you might have more info and links to sites. Meanwhile I think I will go googling and look around.

Thanks in advance,
Rick

 

[Untitledone]

Here is a thread that I found http://www.xtremesystems.org/forums/showthread.php?t=207565 made by http://hardforum.com/member.php?u=183363 on another forum. If you scroll down to the bottom of the first post of this http://hardforum.com/showthread.php?t=1424727 that member has also done some other interesting projects.

How it works is below a certain depth of ground (usually around 4 feet in most places) the ground remains at a constant temperature ( about 55*F, or 12.8*C). You place a large area of piping under that depth to dump the heat into. Theoretically, the larger the area of piping in the ground in relation to the amount of heat you are outputting, the closer you can get to the temperature. You circulate a liquid through that undergroup loop to act as the heat exchange between whats being cooled and the ground. If you live in an area that can get below freezing then you should add some type of antifreeze substance to it. Its very similar to a standard water cooling loop, but much larger. The radiator is replaced with the underground loop. However what standard water cooling cant do is get below ambient temperature in most places. If you live in a climate that is above around 60*F most of the time then a geothermal cooling loop would work great. However in a colder climate its probably easier and better just to place your water cooling radiators outside.

That post I linked was interesting. I dont remember all the specifics, but that guy had 3 overclocked core 2 quads (i think a q6600,q9450,q9550 all ranging 3.2ghz-3.5ghz), and 5 8800GS, as well as motherboard water blocks all water cooled through his geothermal loop. He has 200 feet of copper tubing spread out in a hole 8 feet by 5 feet, and 4 feet deep. Although he didnt get below ambient, his temps were about the same as air cooling. That may not sound impressive, but all that heat is not being dumped into his house, and being a water cooling derivative it is pretty quiet.

 

[Untitledone]

Yeah, my geothermal project got a little more serious. I got an OK from my mom to dig up the yard. I was first thinking of using the plumbing pex pipe which would work but not as well as the stuff they actually use and was cheap. The pex was $0.21 a foot for half inch at lowes in rolls of 300 feet or 500 feet ($65 for 300 feet, $109 for 500 feet). I did some more research I found out they use polyethylene pipe for professional loops. Lowes only had one listing on their website for any kind of polyethylene pipe, and it was the stuff used for spitter lines. It was a 100 foot roll of half inch for like $9 or $12 I cant remember. Thats half the cost of pex and I thought pex was cheap. That is also in a 100 foot roll, the 300, 500, and longer should be cheaper per foot. Just need to hammer out some more details, find where to get the tube, and start buying stuff. Then comes the fun part of digging a buttload of dirt. My grandpa gave me and idea of how I can probe to depth for rocks since I live in a somewhat rocky mountain area. I will create a thread once I get done, and have everything ready.

 

[tjmagneto]

Holy Necro Thread Time!

I'm cutting my production back quite a bit due to summer arriving way too early. The weather people are predicting 100+ temperatures for the next week here in Central Cali.

 

[jebo_4jc]

Yep. Gotta cut back once the A/C turns on.

 

[Grandpa_01]

Holy Necro Thread Time!

I'm cutting my production back quite a bit due to summer arriving way too early. The weather people are predicting 100+ temperatures for the next week here in Central Cali.

Holly smokes the weather people ar predicting 70+ for the next week here in North Wesern Washington.

I do feel sory for all of you that have to endure the heat though

 

[Gilthanis]

tjmagneto, what are you cutting? Would leaving the PC's on just not crunching heavy still work out or would it still be too much heat? You could just leave the NCI apps running. DIMES, WUProp, OProject's ALX, QCN, QOS ( SpatioTemporal Quality of service) and possibly even Radioactive if someone came across one of the sensors. Shoot....even Majestic-12 might not generate too much...just food for thought if it happens to be an option.

 

[Linden]

Holly smokes the weather people ar predicting 70+ for the next week here in North Wesern Washington.

Crazy temps! We are supposed to max at 70F tomorrow...but the computers will warm the house at night (what little night there is) when the temperature moderates at 45F.

 

[tjmagneto]

tjmagneto, what are you cutting? Would leaving the PC's on just not crunching heavy still work out or would it still be too much heat? You could just leave the NCI apps running. DIMES, WUProp, OProject's ALX, QCN, QOS ( SpatioTemporal Quality of service) and possibly even Radioactive if someone came across one of the sensors. Shoot....even Majestic-12 might not generate too much...just food for thought if it happens to be an option.

Thanks for the suggestions.

This evening I cut back on the number of threads to use on the rigs and went back to stock clocks. Once the current jobs finish I'll take a look at the NCI type projects.

The current forecast is 102F this Saturday and 107F on Sunday. Yuck.

 

[Grandpa_01]

Crazy temps! We are supposed to max at 70F tomorrow...but the computers will warm the house at night (what little night there is) when the temperature moderates at 45F.

Pretty damn warm for your neck of the woods this time of year, great fishing weather though