Quote from: Steamtyme on October 30, 2018, 01:29:40 AM

Great information. I would give consideration to putting 1 of the 5 fans on a VFD (variable frequency drive). In the long run this helps save energy by helping you when yourself "between fans". Instead of 1 running full out it will adjust from say 25 - 100% capacity reducing your power consumption. The other 4 fans can be set by the PLC to turn them on and off in sequence.

This may also be useful in the Winter months as the fan on VFD can still move the amount of air required and not more than necessary. (Can't say I'm familiar with Texas winters so I don't know how much more planning you would require.

Thank you. And I agree, VFD would be a great way of doing this as well. Texas winters are hit and miss. The key is to set your systems to automatically adjust fan speeds to keep the cold isle above the dew point.

Quote from: powerminingfarm on October 30, 2018, 03:09:34 PM

You can take a look at shipping container solutions.

Our 40ft model (not on the website at the moment) would fit around 400 ASICs.
https://powerminingshop.com

Nice stuff. However I am concerned about the cooling for this person's needs. Container mining for ASICs is not too ideal in hot environments. There are horror stories of people using container setups in 90+ degree weather. For instance, the Bitmain Antboxes were a total flop for many people in different parts of the world. Basically everything over heated. From your pictures of the small container, I am nervous about there being enough exhaust in 90 to 100 degree heat for the 80 S9s it is designed for.

Also, I noticed that there is no insulation on the top ceiling. The containers we build in Houston, Texas have a small insulation on the ceiling to prevent condensation build up and a rain effect on hardware. This is a precautionary in the case that the automated dew point systems fail. Typically in some hot environments it is common to have a 20 degree drop in the morning, so we have our systems check for the dew point, and automatically adjust fan speeds to keep the container above that specified temp.

What are your tech specs on the 40ft container? Do you have automated variable speed controls to adjust for the variences found in warmer climates?