1. Subscribersonhouse
    Fast and Curious
    slatington, pa, usa
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    06 Mar '13 17:17
    http://phys.org/news/2013-03-quantum-refrigerator-extreme-cooling-convenience.html
  2. Joined
    06 Mar '12
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    06 Mar '13 19:17
    Originally posted by sonhouse
    http://phys.org/news/2013-03-quantum-refrigerator-extreme-cooling-convenience.html
    I have posted 3 questions at the bottom of the link with my most pressing one being:
    "does this eliminate the need for coolants?"
  3. Subscribersonhouse
    Fast and Curious
    slatington, pa, usa
    Joined
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    06 Mar '13 20:06
    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.