Quote from: Spondoolies-Tech on June 18, 2014, 05:47:06 AM

Quote from: antirack on June 17, 2014, 10:56:01 PM

DataTank Immersion (3M Novec): <$0.65/W (PUE 1.01) -> $650/kW
...
To put this in perspective, Titan has a PUE of 1.25 (25% of electricity go to cooling).

Assuming you have nothing to do with the residual heat, how do you handle it ?
My assumption is that you still need outside chiller. If you're in an hot locale like Israel, you can't use free air chiller, and your PUE will be much greater than 1.01

I'm guessing the following, correct me if I'm wrong:

- For IC DT PUE, you count only the internal looses inside the DataTank, without the external cooling PUE
- For Titan PUE (as an example), you count internal + external

My point is that if you're deploying in the right locale in terms of electricity cost and weather (e.g. Iceland, Canada or WA state as an example), you can deploy at a much cheaper cost and the internal PUE loses compare to IC DT won't hurt you much.

Another issue you don't take into your calculations: With Bitcoin mining, the best strategy, IMHO, is to mine for 3-4 months on new hardware, afterwards upgarde the hardware and sell the old one for nice residual value (25%-50% in some cases). You simply can't do that with Immersion Cooling DataTanks.

Guy

Welcome back!

To answer a few of your questions:

No need for a chiller. Only pump + fans. It works in any climate as far as I know.

PUE is 1.01 or less. Asicminers 500MW DC uses a single 1.1kw pump and 400w worth of fans.

I agree that you will eventually need to sell hardware but it wont be 3-4 months at $0.025/kwh.

As for resale, it will still be possible. Shipping blades will be cheap and there is a conversion to air cooling.

Although I don't know who you would be selling hardware to. Maybe someone who pays $0.01/kwh?