Liquid Cooling = greener data centre
Forgive me if I have missed something here.
Compute and storage (chips and all the gubbins that make up this stuff) produces heat, often lots of it, usually to the point that the required cooling is not far off the input power to the equipment.
So liquid cooling may mean that you can possibly get the heat out of the chips more efficiently so you can load the more (HPC is doing this regularly now) but you still have to get rid of the heat and the simple physics of this does not really change the efficiency.
There will be heat exchangers and pipes already with chilled water, you just have another loop for this and the coolant in this case often has nasty chemicals in.
This sounds like a typical greenwashing to make something sound better than it actually is.
The bottom line is that it does not matter how you try to zazz it up, data centres & IT are never ever going to be "green" or environmentally friendly. There is simply too much power, resources and short life-span in the chain with very difficult recycling at the end.
Biting the hand that feeds IT
