Nvidia liquid cooling design claims 100% reduction in water use
https://tech.yahoo.com/science/articles/nvidia-liquid-cooling-design-claims-131632023.htmlOpen linkView original on lemmy.today112
Comments36https://tech.yahoo.com/science/articles/nvidia-liquid-cooling-design-claims-131632023.htmlOpen linkView original on lemmy.today
Wow, they invented closed loop cooling.
I guess they will be completely blown away when they find out, that one can actually link data centers to distributed heating networks and thereby actually use the primary output of those premium priced electrical heating plants, instead of just wasting it and lots of water while doing so. Of course, for doing so one would have to properly plan those data centers and need more time developing them etc. And then it would take longer than this bubble might last so that is not an option.
I read a story of one datacenter years ago where their waste heat was heating the industrial complex around them. It was a nice change to see. Regulations around it would really help. Oh you want to do this? You need to reuse 80% of your waste heat to get approval, and have x% of power be renewable.
We know how do it, people just dont.
Maybe so. But it would cost money. And companies just don’t do that in America.
100%? So no water at all.
A closed loop system would achieve this, or at least after the initial filling of the system.
This cooling tech sounds exactly like the radiator in my car.
However, radiators in your car are also effective due to a constant airflow over them as they are moving. Datacenters don’t move, so what will help that transfer?
My car has this ancient technology called a "fan" to move air over the radiator when its running but not moving.
Wait....do you think no air is pushed over the radiator without it moving? Clutch fans and electric fans run when you're stuck in traffic or idling. They turn on or off when the tstat tells them to (minus clutch fans that run off the engines own power).
My point was more about forced airflow, whether it be the movement of the car (less use of energy, as you’re using the motion of the air to provide airflow) or if you’re sitting still you have those fans, which are a power draw. In the case of a DC, you’d always have to have a fan to do what a car does passively. So that increases, cost, energy use and complexity.
Most DC builders are avoiding closed loop systems already as they’re more expensive.
Being bigger. They don't move so they can be huge.
This article fails to mention (I presume, after skimming it) that all these data centers aren’t using water because it is magically better suited for this job, it’s just cheap and abundant.
This “new cooling design” doesn’t mean shit when it doesn’t address the reason data centers are using so much water
They kinda do, they say that, because the coolant is so efficient at transferring energy, a data center will not need evaporative cooling.
It would be very interesting to know what the upper limit of air temperature would be.
They already don't need evaporative cooling. They just don't want to pay for closed loop systems because they're more expensive than evaporative cooling.
The solution exists, it's just not required so no one is paying to do it when they don't have to.
Existing systems rely on air to pass heat to a radiator, which then relays heat to the ambient air outside. In order to keep temperatures inside the data centre at sane levels, the cooling water needs to be below ambient temperature, which can be done with either chillers or evaporative cooling. Running a chiller takes a lot of electricity to say the least.
By exchanging heat between the chip and the cooling water directly, it seems they're claiming they can just have a heat exchanger with no chiller or evaporative cooling required. Which is probably true, it's why over clocked gaming PCs are often water cooled.
Why a chiller? You don't need to freeze the servers. If you just use a normal radiator you remove the compressor and just need a pump and a fan
This has to be the dumbest reply I've had in a while.
I said below ambient, not below freezing. You can only ever cool to ambient temperature with a radiator.
Again, they’re not using water for its properties. Heat transfer efficiency is low on the list of priorities. Cost, both upfront and running, is the deciding factor
Surely you must realise heat transfer efficiency and cost are closely linked, right? You haven't told us anything we don't already know. Of course this is about saving money, that's already obvious.
Who’s us? I didn’t struggle understanding what they said at all
I'm not sure what argument or point you're trying to make here. Why do you think they're using water, exactly? And surely you must realise how efficiency and cost are linked?
I don’t know how to be any clearer.
LOW COST > HIGH COST.
It’s money. The goal is to save as much money as possible. Businesses, corporations, contractors, investors. All the people making decisions are trying to save every bit of money possible.
Surely you realize heat transfer efficiency isn’t linked to the cost of water. Which doesn’t even show up on the balance sheet.
100 * 0 = 100000000 * 0
Do you genuinely think I didn't know businesses want to save money? Why are you telling me this?
You seem to have a hard time understanding that water is used because it is cheaper than the alternatives which already exist. This new development won't replace water while the water remains cheap.
Are you talking about evaporative cooling? Because this new system still very much uses water, in a closed loop.
And I'm aware water is cheap, it falls out of the sky.
After your previous comment, i thought that about you as well.
Why do people keep acting like a company wanting to save money is a revelation? It's so blindingly obvious, there's no need to tell everyone all the time?
Still gonna be using tons of energy, so hit me up when they claim 100% reduction in energy and I'm interested.
It sounds like genuinely cool technology in multiple ways. A water block on every single major component, and no cooling fans at all.
That would also be a very quiet room, rather than having thousands of tiny little fans screaming all the time.
The failure domain becomes everything below the box that leaks?
There’s nothing wrong with air cooling.
Did you miss the part about millions of dollars in energy savings per year?
Is it reduced 100% or 1200%?
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