Replying to Avatar Joshua

What temperature is required to drive the cooling cycle?

Based a quick search, it seems that fridges require 100-200 BTU per ft³, and an S9 puts out ~5000 BTU. Given the fridge numbers are correct, an S9 should be sufficient. You would probably have to hydro cool it to efficiently transfer enough heat.

It would be necessary to determine whether or not the water could be heated to the required temp.

I've seen some commercial chillers that can run as low as 158°F (70°C). Different scale, but it might be possible.
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BottleTeams 1y ago

You have to condense and evaporate the ammonia. I think it's more of a heat transfer problem. The chips get plenty hot. Would have to replace heat sinks with some sort of closed ammonia heat transfer system. RV fridges are pretty cool systems.

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Joshua 1y ago

I get that the problem lies in transferring the heat from the asic to the fridge generator. For discussion sake, couldn't you use an S9 Hydro (or any other Hydro model) and route the hot water from the S9 to a heat exchanger on the generator of the fridge. According to Wikipedia the fridges operate around 14-16 bar, which puts the vapor point for ammonia around 97-106°F, according the P/T chart. If I'm not mistaken, it would simply be a matter of adjusting the flow rate of the S9 water circulator to ensure it was heated to at least few degrees above that point.