Topic: Mining in the refrigerator? - page 2. (Read 10439 times)
You might want to look at submerging the rig in a mineral oil bath and using a radiator to extract/transfer the heat to the outside or other purpose.
You gotta remember, colder is not better. IIRC, the optimal ambient temp/humidity even in a data center is 68F/45%. Run those AC's at 68F, and you're good.
That is not true. Computers run better and better the colder they are. I have a competition PC with a tri-head cascade running -95c on the CPU and both GPUs. The only problem is condensation which starts at roughly 10c CORE temperatures at normal ambient. If the ambient and core temperatures have a low temperature delta, it can be as low as you want. You can easily fight condensation with proper hardware insulation (easily for ezExperienced people though).
Although. That is very inneffective for mining. Any cooling assisted by a compressor (direct cooling, ac, water chilling) will be extremely inneficient energy wise once below high heat thresholds (is ambient over roughly 35c)
You gotta remember, colder is not better. IIRC, the optimal ambient temp/humidity even in a data center is 68F/45%. Run those AC's at 68F, and you're good.
That is not true. Computers run better and better the colder they are. I have a competition PC with a tri-head cascade running -95c on the CPU and both GPUs. The only problem is condensation which starts at roughly 10c CORE temperatures at normal ambient. If the ambient and core temperatures have a low temperature delta, it can be as low as you want. You can easily fight condensation with proper hardware insulation (easily for ezExperienced people though).
Although. That is very inneffective for mining. Any cooling assisted by a compressor (direct cooling, ac, water chilling) will be extremely inneficient energy wise once below high heat thresholds (is ambient over roughly 35c)
If there was a cheap way to efficiently turn heat directly into power, they'd have implemented it by now. The best system is like 3% efficient or something and it's generally about 10 years behind solar technology.
Among other problems already noted...putting a rig in the freezer would not only heat up the freezer, but it's also subject to quite a bit of water and humidity...both of which don't quite get along with electronics.
You may want to use some of these Peltier units :
http://www.conrad-uk.com/ce/en/product/182620/HighTech-Peltier-element-QuickCool-Max-heating-power-270-W
http://www.conrad-uk.com/ce/en/product/182620/HighTech-Peltier-element-QuickCool-Max-heating-power-270-W
Perhaps power the refrigerator with the waste heat of the miners?
how
You may want to use some of these Peltier units :
http://www.conrad-uk.com/ce/en/product/182620/HighTech-Peltier-element-QuickCool-Max-heating-power-270-W
http://www.conrad-uk.com/ce/en/product/182620/HighTech-Peltier-element-QuickCool-Max-heating-power-270-W
Perhaps power the refrigerator with the waste heat of the miners?
how
A peltier junction, or simply the thermoelectric effect, works both ways - can drive a temperature differential with an applied voltage or generate a voltage from a temperature differential. Mining equipment is hot relative to ambient. You'd likely need a lot of miners or a very small refrigerator.
You may want to use some of these Peltier units :
http://www.conrad-uk.com/ce/en/product/182620/HighTech-Peltier-element-QuickCool-Max-heating-power-270-W
http://www.conrad-uk.com/ce/en/product/182620/HighTech-Peltier-element-QuickCool-Max-heating-power-270-W
Perhaps power the refrigerator with the waste heat of the miners?
how
You may want to use some of these Peltier units :
http://www.conrad-uk.com/ce/en/product/182620/HighTech-Peltier-element-QuickCool-Max-heating-power-270-W
http://www.conrad-uk.com/ce/en/product/182620/HighTech-Peltier-element-QuickCool-Max-heating-power-270-W
Perhaps power the refrigerator with the waste heat of the miners?
Doesn't overclocking reduce overall rig lifetime tho? I'd think that attaining 10% greater hashes for 75% the lifetime may not be worth it..
Burn that sucker up! ASICs are coming out, lol.
Refrigerator compressors aren't designed to dissipate even 100W continuous. You'll blow out the compressor.
My best idea would be to have a water cooled rig and have the reservoir in the fridge/freezer (obviously use anti-freeze if using a freezer). This would dramatically drop temps without killing the fridge/freezer. This would eliminate most of the condensation problems.
sounds like a great idea
Not a great idea. The condensers on refrigerators are typically designed to reject the heat from a compressor that is working to cool food from room temperature to ~35-40F. Food does not continuously radiate heat like your reservoir would and would increase the duty cycle of the refrigerator. This will once again gradually overheat the system and destroy the compressor.
This is all not an issue if you are using a refrigerator like a walk-in refrigerator that is designed to handle large changes in load and/or run continuously.
Once you start overvolting, overclocking increases the power consumption more than the performance of the GPU, so it may not be to your advantage.
If your AC unit has a COP of 6 that means it takes up 6000W of cold and puts it outside per 1000W of electricity used. I think the added cost running the AC will not be made up by overclocking in most cases.
If your AC unit has a COP of 6 that means it takes up 6000W of cold and puts it outside per 1000W of electricity used. I think the added cost running the AC will not be made up by overclocking in most cases.
Doesn't overclocking reduce overall rig lifetime tho? I'd think that attaining 10% greater hashes for 75% the lifetime may not be worth it..
My best idea would be to have a water cooled rig and have the reservoir in the fridge/freezer (obviously use anti-freeze if using a freezer). This would dramatically drop temps without killing the fridge/freezer. This would eliminate most of the condensation problems.
That is interesting. I thought about putting my rig in a cooler, wine cabinet or something like that and what I could not get past is the condensation and or the risk of being to humid and then frying something. I had an AC unit in a server rack but the cost to run it was too much. The AC unit was killing the heat but it was also killing my profits so I killed it 
.If you do the water cooled rig with a reservoir in the fridge post some pics.
My best idea would be to have a water cooled rig and have the reservoir in the fridge/freezer (obviously use anti-freeze if using a freezer). This would dramatically drop temps without killing the fridge/freezer. This would eliminate most of the condensation problems.
sounds like a great idea
My best idea would be to have a water cooled rig and have the reservoir in the fridge/freezer (obviously use anti-freeze if using a freezer). This would dramatically drop temps without killing the fridge/freezer. This would eliminate most of the condensation problems.
A refrigerator only pulls the energy (heat) from the inside, and drags less energy into the inside. The hotter it is outside a fridge, it will get hotter inside the fridge.
A cold compressed solution going into fridge, cools stuff, heads to the back of the fridge, decompresses, and get cooled off with a fan in the back. Then it gets recompressed, making it cold, and pumped back into the fridge.
When my room was hitting 90'F in the summer, I had all of my windows open and fans blowing directly into my rigs. They never went above 80'C
A cold compressed solution going into fridge, cools stuff, heads to the back of the fridge, decompresses, and get cooled off with a fan in the back. Then it gets recompressed, making it cold, and pumped back into the fridge.
When my room was hitting 90'F in the summer, I had all of my windows open and fans blowing directly into my rigs. They never went above 80'C
and what temp inside ur fridge was it?
A refrigerator only pulls the energy (heat) from the inside, and drags less energy into the inside. The hotter it is outside a fridge, it will get hotter inside the fridge.
A cold compressed solution going into fridge, cools stuff, heads to the back of the fridge, decompresses, and get cooled off with a fan in the back. Then it gets recompressed, making it cold, and pumped back into the fridge.
When my room was hitting 90'F in the summer, I had all of my windows open and fans blowing directly into my rigs. They never went above 80'C
A cold compressed solution going into fridge, cools stuff, heads to the back of the fridge, decompresses, and get cooled off with a fan in the back. Then it gets recompressed, making it cold, and pumped back into the fridge.
When my room was hitting 90'F in the summer, I had all of my windows open and fans blowing directly into my rigs. They never went above 80'C
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