Is there an optimal temperature for BitCool?
I've been playing around with adjusting flow rates and heat rejection in a couple of test setups with BitCool. My question is if there is an optimal temperature to maximize heat transfer for BitCool. I know the Delta should be 5-30C (I typically shoot for around 10-12C realistically), but is there an advantage to running around 60-65C output temp (as you have in your videos), over other cooler temps of, say, 45-50C?
Also, do you have any data on where a 60-65C fluid output temp puts your average ASIC chip temps? Hoping to do some larger scale stuff here soon, just trying to learn whatever I can on these test setups. Thanks!
Question ID: 3947806 Status:
Open Mar 10, 2022 - 12:20 PM
Tank / System Design
Voted Best Answer
Mar 10, 2022 - 12:20 PM
While heat transfer rates may be optimized with a cooler fluid temperature, trying this in the field shows that the additional cooling isn't worth the extra pumping power that's required or the extra cooling surface are needed. The effect is very small, and is overshadowed by other variables that change as a result of working at lower temps. Lab experiments also show that some miners work more efficiently at lower temperatures, but, here again, this increase in efficiency comes at a cost of higher capital and operational costs, and so isn't worth pursuing.
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