Originally posted by humy
I have posted 3 questions at the bottom of the link with my most pressing one being:
"does this eliminate the need for coolants?"
The post says it takes almost 20 hours to get the temp down to .3 K, so I imagine the power is only a few watts of cooling.
I deal with Cryo pumps on a daily basis and they cool only down to about 10 degrees Kelvin and has a cold head with about 10 ish watts of cooling power, enough to make a pump, it freezes out atmospheric gasses onto activated carbon bits at 10 or 12 degrees K, so it makes a pretty good vacuum pump. I suspect this new cooler could replace the helium compressor, cryo pumps use helium gas as the heat transfer fluid.
But it would take a WHOLE lot of them to cool a room for instance, where you want maybe 10,000 BTU of cooling or so.