this post was submitted on 05 Jul 2026
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I still do not understand why they don’t use heat exchange loops, like we figured out for nukes 75 years ago
Because it's considerably cheaper to do it this way and they're being allowed to do so. Why would they spend money building giant cooling towers when they can just dump the hot water into the river and then drain main supply for fresh supply.
I’d assume it’s cheaper to fuck up the environment.
It’s as the case is with everything for these parasites: if it loses them too much money or makes them too little, they avoid it like the plague. It’s cheaper upfront to just run it through an open system.
They usually do. They just do the same thing a lot of nuclear reactors do and also evaporatively cool one end of the heat exchange loop.
As far as I can see they don't ever do it that way, that's the problem, if it was a closed loop they wouldn't be pulling water from the mains and causing water pressure issues for everybody else.
They cool the hot side of the loop with running water, like reactors do, rather than using air.
So the loop is closed, but they're using running water to cool it off faster, rather than needing a bigger radiator on the hot side.
That's not what they're doing though. That would be fine that's just a heat exchanger.
What they are doing is pulling water from the mains to cool the system either directly or to cool an internal system via heat exchanger and then are dumping hot water back into the environment. They're not pumping the water to cooling ponds and letting it cool back down and then pulling the water back out of the cooling ponds to use again.
I was thinking more along the lines of the big evaporative cooling towers you see with a lot of reactors, since they rely on vaporisation to cool off, most of that water can't be reused, short of getting picked up in the water cycle again.
Hmmm can they … add a turbine?
Unfortunately not. Computing hardware doesn't get that hot.
The chips would be fried if you had them at the temperatures where they were generating enough steam to run a turbine.