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Author Topic: Novec 7000 Project [immersive evaporating cooling]  (Read 26276 times)
aTg
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July 13, 2013, 03:46:04 PM
 #1

Surely many have you already heard of Novec 7000, a product of 3M non-conductive which boils at 34 ° C.

He who does not know much information see the web and youtube.

This is a prototype to test it with mining equipment of all kinds, both FPGA and ASIC.

The equipment consists of a sealed tank, a heatsink to cool gases of Novec for return to liquid state, one peltier to forces heatsink cooling, liquid cooling system can also be a heatsink if you want and finally a conduit which reaches below the liquid level to pass cables out without gas escapes.
In the coming days I will receive a few gallons of Novec and we can test it.








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July 13, 2013, 03:53:58 PM
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What is the cost of a gallon ?
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July 13, 2013, 04:14:36 PM
 #3

250$\gallon omg...
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July 13, 2013, 04:22:23 PM
 #4

So its $1k to cool this container. Sinks and fans will be cheaper. What is the business model for the fluid ?
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July 13, 2013, 08:18:51 PM
 #5

Cool stuff. Post more pics when you are done.

I've seen 3M do this on Youtube before, their setup is pretty cool and similar to yours.

http://www.youtube.com/user/petuma1?feature=watch

Warning about Nitrogensports.eu
https://bitcointalk.org/index.php?topic=709114.0
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July 13, 2013, 09:52:11 PM
 #6

Gracias Grin

Sitarow
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July 13, 2013, 10:42:49 PM
 #7

3M Thermal Management  fluids kinematic viscosity charts

I was considering using this to cool Bitfury 400 units and mount them vertical.

http://multimedia.3m.com/mws/mediawebserver?mwsId=tttttvW9lEgUmy7VPZA_qZ0t2XW62EW9iXut2Xut2tttttt--&fn=bro_heattrans.pdf

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July 13, 2013, 11:01:01 PM
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3M Thermal Management  fluids kinematic viscosity charts

I was considering using this to cool Bitfury 400 units and mount them vertical.

http://multimedia.3m.com/mws/mediawebserver?mwsId=tttttvW9lEgUmy7VPZA_qZ0t2XW62EW9iXut2Xut2tttttt--&fn=bro_heattrans.pdf



Its sounds like a fun experiment.   Have you visited these forums? 3m-novec-7000-group  They have posted  data and some conclusions on using Novec cooling fluids for servers and other electronic devices.

Quote
The end result is the cost and need to keep a sealed hermetic environment does not outweigh the benefits. Ultimately air cooled servers are more efficient and use less space in 1U rackmount configurations without the need for a condenser. Increasingly, for overclockers, it serves less purpose as it is not a good working fluid, and is prone to gelling. So you get water results at many times the price, difficulty, and encumberance.

It's fun and a cool idea. But also, insulation for sub zero methodologies has progressed incredibly in the last five years. Insulation is simple and does not place permanent marks upon motherboards and rarely results in damage with minimal preparation, something far from this configuration.

Sure is the power recoup nice? If you can produce high enough pressures for a regenerator, yes. Is it viable? Not really.
Also the fluid is often used with masks, as the effects of the fluoroether long term on lung tissue is not yet known or tested.

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July 13, 2013, 11:08:32 PM
 #9

3M Thermal Management  fluids kinematic viscosity charts

I was considering using this to cool Bitfury 400 units and mount them vertical.

http://multimedia.3m.com/mws/mediawebserver?mwsId=tttttvW9lEgUmy7VPZA_qZ0t2XW62EW9iXut2Xut2tttttt--&fn=bro_heattrans.pdf



Its sounds like a fun experiment.   Have you visited these forums? 3m-novec-7000-group  They have posted  data and some conclusions on using Novec cooling fluids for servers and other electronic devices.

I am looking into a solution like this to expand my present setup.



Below is a pump and heat exchanger that moves heat outside so it can be dissipated by chillers.


Youtube Video http://www.youtube.com/watch?v=JkuCFA1Vtio
aTg
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July 15, 2013, 01:15:29 AM
 #10


Its sounds like a fun experiment.   Have you visited these forums? 3m-novec-7000-group  They have posted  data and some conclusions on using Novec cooling fluids for servers and other electronic devices.


Thanks for the link

The price is 86 € per kilo and has a density of 1.4 kg/m3.

This week I should get the liquid, for now I will track the performance of an FPGA to compare air cooled using liquid after this.

Average 946 MH / s

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July 15, 2013, 06:10:50 AM
 #11

A running fan in closed area, and where is the hamster? Cheesy

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July 15, 2013, 06:58:00 AM
 #12

Quite interesting..

Is it just me or does that seam like an awful little heatsink for that big a tank? Smiley

How many asic's / fpga's are you planning on putting into the tank?

Are you going to be circulating the fluid via pump / fan?

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July 15, 2013, 07:06:29 AM
 #13

Quite interesting..

Is it just me or does that seam like an awful little heatsink for that big a tank? Smiley

How many asic's / fpga's are you planning on putting into the tank?

Are you going to be circulating the fluid via pump / fan?

The tank itself is a huge radiator.

If the phase change cooling works as advertised you would need a condenser with similar surface area to the heat sink on the FPGA.

EDIT: Provided that condenser is just going to be air cooled. If I understand correctly OP is trading the expense of the compressor in an air conditioner for this fancy refrigerant. By using a peltier it could be much smaller.

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July 15, 2013, 12:22:25 PM
 #14

 Smiley Smiley Smiley

minternj
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July 15, 2013, 01:16:35 PM
 #15

Quite interesting..

Is it just me or does that seam like an awful little heatsink for that big a tank? Smiley

How many asic's / fpga's are you planning on putting into the tank?

Are you going to be circulating the fluid via pump / fan?

The tank itself is a huge radiator.

If the phase change cooling works as advertised you would need a condenser with similar surface area to the heat sink on the FPGA.

EDIT: Provided that condenser is just going to be air cooled. If I understand correctly OP is trading the expense of the compressor in an air conditioner for this fancy refrigerant. By using a peltier it could be much smaller.

The cooler at the top is just to condense the novec gas back to liquid form. This is a air sealed system. technically, the fan isnt necessary at all.

Warning about Nitrogensports.eu
https://bitcointalk.org/index.php?topic=709114.0
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July 15, 2013, 02:15:11 PM
 #16

what if ambient gets over 34C ? would the whole thing explode due to pressure?

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July 20, 2013, 02:22:12 AM
 #17

Novec 7000 is just pure nerd porn  Grin

What are you going to submerge? For the ~600Watts of heat of an Avalon the condenser set up looks a little weak. What's the concept?
Is what we are seeing is a peltier with it's hot side liquid cooled? How much power can it take if it's properly cooled? Got a link to a datasheet?


what if ambient gets over 34C ? would the whole thing explode due to pressure?

No, the container is not pressure tight. But the first little leakage will cost ya 1k$  Shocked
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July 20, 2013, 06:44:58 PM
 #18

awesome http://www.youtube.com/watch?v=EN3m1bJvS4Q&list=TLNjX4E-7_4No


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July 21, 2013, 01:25:49 PM
 #19

beautiful Smiley I'd love to see some hashing ASICs submerged into this magical stuff

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aTg
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August 01, 2013, 10:51:11 PM
 #20

Here is the evidence of the liquid, has improved the performance of a single plate 946 to 963 MH/s, putting three plates have begun to have a pressure problem and I had to stop.







And a pretty cool video with the three boards running.

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