Post
Topic
Board CPU/GPU Bitcoin mining hardware
Re: Two Phase Open Bath Immersion Cooling Thread
by
acuteioa
on 16/02/2014, 20:18:54 UTC
Hi all,

Just made a little setup for testing with 3M Novec 7100.
Please watch:
www.youtube.com/watch?v=Ut9zuh7Di4g

The fluid cools two stacked USB AsicMiners in a small olive jar.

I skipped adding thermocouple temperature measureing... it doesn't say much about the temp inside the asic components anyway. And I'm 'practical' Wink And I do believe 3M that gas occurs at 61°C. Or at least... I did. However... now I doubt. Because there is a bit of pressure built up inside the jar. This causes the boiling point to increase. I guesstimate it's around 63-68°C now. But now I wish I added a thermocouple to know for sure.

However.. it's running for 2 days now. No problems so far.

I also have Novec 7000. That is next.

My final goal is to immerse an whole motherboard with 2 or 3 gpu boards. Also SSD drive and PSU will be cooled this way. The case is going to be mostly 3D printed, to minimize liquid usage. And total setup weight. It will include epoxy-poured windows. I already used special epoxy to create stunning optical lenses. Anyway... idea is also to add an underpressure mechanism. This will allow me to change the boiling point of the liquid at free will. And Im also thinking to 3D print custom designed cooling ribs for the condensor (shapeways allow 3D printing of sterling silver!!). But that needs some experimentation and calculations first. Sounds all cool, no? Any interest in this community to support me financially? I know kickstarter... but who needs that if you already have a bitcoin donation address?  Tongue I estimate I need 4k euro to realize all this.

http://farm3.staticflickr.com/2867/12572669655_6be0a9f82b_c.jpg
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