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45°C cooling design cuts data center water use to near zero

blogs.nvidia.com

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Re: 45°C cooling design cuts data center water use to near zero

#61

Earlier quoted context omitted.

It depends a lot on things like geology and some people are a lot more sensitive. It is really an issue. I don't have any datacenters near me but I can hear some heavy hums from the washing machine 3 floors up when it put my head on my pillow, for some reason it just propagates through the building physically. When I walk around I don't hear it. Datacenter noise can be the same. IMO they should be put away from habit…

> IMO they should be put away from habitation, there's no reason for them to be near there anyway I agree, but that's a hard problem (in the US anyway). Unless you're plopping data centers in the middle of national parks, or in the middle of the desert where water is going to be a problem, you are nearly always going to be within some small mile radius of civilization. Plus the cost of trenching new fiber out in the…

The climate requirements to run at this hotter temperature still probably means it'll require more active cooling in the desert during daytime /summers. Assuming we're talking about hotter desert environments like US southwest. That might make your proposal not as economical.

Imo we should just solve the problems with data centers being near cities. Manage/regulate the noise and any waste (heat included, it shouldn't drastically impact the neighbors) and make them pay for any utility capacity/reliability upgrades needed. If this article is right and water usage can be nearly eliminated then it seems like the rest should be solvable? Especially if we can take the extra heat and use it for local power or heating needs.

Re: 45°C cooling design cuts data center water use to near zero

#62

Earlier quoted context omitted.

The university where i studied uses high temperature cooling since a few years. The weather on Germany ranges to quite high temperatures, but according to the tech stuff they only need active (as in AC) cooling for the higher end of the 30 degrees. The technology is quite fascinating. https://www.kit.edu/kit/english/pi_2024_038_kit-supercompute...

I lived in Munich many years ago, but if the temperature ever went to the high thirties for more than a day we'd expect the end of the world :-)

Speaking from a UK perspective global warming is now noticeable, hot days are hotter and there's more likely to be a heat wave, and that's changed in the last decade.

I assume Germany is the same, many years ago really is different to today.

Re: 45°C cooling design cuts data center water use to near zero

#63

Earlier quoted context omitted.

I lived in Munich many years ago, but if the temperature ever went to the high thirties for more than a day we'd expect the end of the world :-)

Speaking from a UK perspective global warming is now noticeable, hot days are hotter and there's more likely to be a heat wave, and that's changed in the last decade. I assume Germany is the same, many years ago really is different to today.

For sure. Everywhere. Even observationally, we just all know it's hotter, or wetter, or colder - it's all way more extreme in all dimensions.

Re: 45°C cooling design cuts data center water use to near zero

#64

Earlier quoted context omitted.

Do you live near a datacenter? Property value goes down, constant humming.. the way we heat up the earth right now, i don't think you have to worry about heating

It sounds like with this liquid cooling, they won’t need the fans?

They almost certainly need fans on the outside of the building to cool the 55C water back down to 45C. But correct, no fans on the servers themselves or even in the building. Except perhaps for the humans, so they can stand to work inside the building, when needed.

Re: 45°C cooling design cuts data center water use to near zero

#65
post #26
post #22

This is also the type of thing that makes space based data centers more viable. I was previously more skeptical on the concept but have come around. I do think ground based centers will have better economics when they can be built though, and this addresses noise and water complaints which are the big 2 regional complaints. It seems like lots of bottlenecks are getting solved quickly, except for maybe memory.

How does that change the calculus for space datacenters? There is still no reasons or benefits to having them in space. You still have to rely solely on radiative cooling. That doesn’t solve any of the maintenance problems. Space datacenters is a really dumb and unrealistic idea Musk is talking about to hype his companies, it’s not meant to actually be done. Anything in space is more expensive and way harder to do, f…

What do you think of China, also dumb, or just blindly FOMO?

https://spacenews.com/china-backs-orbital-data-center-startu...

https://www.reuters.com/science/china-vows-develop-space-tou...

Plans for space data centers should be seen with skepticism. However when they are backed by different parties who have stakes in the game, that's more credible. More than HN crowd for sure.

Re: 45°C cooling design cuts data center water use to near zero

#66

Earlier quoted context omitted.

Do you live near a datacenter? Property value goes down, constant humming.. the way we heat up the earth right now, i don't think you have to worry about heating

It sounds like with this liquid cooling, they won’t need the fans?

The humming are the gas turbines which also damages your health.

Re: 45°C cooling design cuts data center water use to near zero

#67

Earlier quoted context omitted.

Do you live near a datacenter? Property value goes down, constant humming.. the way we heat up the earth right now, i don't think you have to worry about heating

>Do you live near a datacenter? Property value goes down, constant humming I don't live next to one but I'd take constant humming over the constant stop/go traffic noise, honking, squeaky brakes, slamming doors and revving engines I now have on my western side of the apartment, thanks to the unemployment office the city opened on my street not too long ago. So how come constant humming is somehow an illegal nuisance,…

More noise categories should be illegal or fined in dense areas, not less

Re: 45°C cooling design cuts data center water use to near zero

#68

Earlier quoted context omitted.

Do you live near a datacenter? Property value goes down, constant humming.. the way we heat up the earth right now, i don't think you have to worry about heating

>Do you live near a datacenter? Property value goes down, constant humming I don't live next to one but I'd take constant humming over the constant stop/go traffic noise, honking, squeaky brakes, slamming doors and revving engines I now have on my western side of the apartment, thanks to the unemployment office the city opened on my street not too long ago. So how come constant humming is somehow an illegal nuisance,…

> we've been expected to put up with the much more annoying urban traffic noise for decades just fine?

For one, there tends to be little traffic at night when most people want quiet in order to sleep. Driving is also something (nearly) everyone does and benefits directly from, so negative externalities are easier to accept. It is much harder to accept a new source of noise near your home you haven't asked for and don't directly benefit from.

Re: 45°C cooling design cuts data center water use to near zero

#69

Earlier quoted context omitted.

>Do you live near a datacenter? Property value goes down, constant humming I don't live next to one but I'd take constant humming over the constant stop/go traffic noise, honking, squeaky brakes, slamming doors and revving engines I now have on my western side of the apartment, thanks to the unemployment office the city opened on my street not too long ago. So how come constant humming is somehow an illegal nuisance,…

More noise categories should be illegal or fined in dense areas, not less

Agree, but data centers are no inside dense areas though.

Re: 45°C cooling design cuts data center water use to near zero

#70

Earlier quoted context omitted.

More noise categories should be illegal or fined in dense areas, not less

Agree, but data centers are no inside dense areas though.

They're being built in the US next to people's houses with gas turbines

https://xcancel.com/BrianEntin/status/2067930868191035474?s=...

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