Re: Not new and not green
Agreed this idea has been around for many decades, military and industrial use of oils, flouronert etc are common and old.
You miss the power calculations though, they didn't just remove the fans on the PC, they can also remove or severely downsize the HVAC/CRAC cooling units for the Data Center room, and the result of that is the ability to reduce the sizing on the UPS units. Both of these factors result in a large amount of savings, there are much better ways than the proposed to solve this....but I can't give away all my good ideas for free... :-)
They have several problems with their demo:
Mineral oil doesn't remove heat, it absorbs it (to a point) and then releases it into the room its housed in. This works great for home PC's that you heat up all evening playing games, and then cool down overnight, but would be terrible for a non-stop international supporting data center. They are glossing over that their demo is in a giant super AC cooled exhibit room.
Mineral oils also tend to work the stickers off of the MB, cards etc. Easy enough to remove these by hand for 20 servers for a demo, but not a realistic practice for 20,000 servers in a data center.
Also their Data Center would have to be a like a clean room, the open top would attract dust, hair etc and would become murky and dirty, and that could clog any pumps fans etc that are used to circulate the mineral oil over the hotter parts of the PC (PSU and CPU)
Liquids are like 3000 times more effective at cooling than air though.
I've seen working models, and proposals for liquid metals for cooling (not direct contact of course) alcohol (yikes) and many other industrial chemicals including and similar to flouronert.
Still good on them for trying and making people think