Researchers have built the first refrigerant-free system to reach sub-zero temperatures, a breakthrough that could reduce food waste and greenhouse gas emissions.

Imaging if this technology could cool a data centre.

Edit: I was not involved in this project. You are wasting your time asking me questions.

  • Echo Dot@feddit.ukEnglish
    1·
    17 days ago

    That’s thermodynamically impossible but ok.

    When you cool something you take heat energy out of it you have to do something with that heat energy you can’t just delete it.

    • voodooattack@lemmy.worldEnglish
      0·
      17 days ago

      You don’t overcome thermodynamics, but you can work around them. For example:

      When you cool something you take heat energy out of it you have to do something with that heat energy you can’t just delete it.

      Or you can shunt it into space so that it doesn’t heat the atmosphere on its way out. That’s called radiative cooling and it’s brilliant.

      And it can be done at home with household items. See Nighthawk’s YT channel for more info: https://youtu.be/N3bJnKmeNJY

      And that’s just one out of many possible approaches. Interesting read: https://en.wikipedia.org/wiki/Reflective_surfaces_(climate_engineering)

      • Echo Dot@feddit.ukEnglish
        0·
        17 days ago

        That’s reflection of external heat not removal of internal heat. Refrigeration requires effort and therefore energy.

    • YiddishMcSquidish@lemmy.todayEnglish
      0·
      17 days ago

      Seriously this! I feel like that cobra chicken meme where I’m yelling

      “where does the entropy go?”

      “WHERE DOES THE ENTROPY GO‽”