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Comment by pyrale

10 hours ago

Where does the heat collected by amminia get evacuated?

Through thermal radiation, it's called radiative cooling.

But it's not trivial indeed, especially if you want good power density in your space data center.

  • Datacenter capacity (and thus heat) grows by the cube law, but the ability to radiate heat grows by the square law, so it seems like it would be advantageous to have a bunch of smaller satellites, if you were concerned about cooling them.

    • > it would be advantageous to have a bunch of smaller satellites, if you were concerned about cooling them.

      ...That's only relevant if you start from the position that your datacenters have to be space.

      You could already make smaller datacenters on earth, and still have better cooling, if you were concerned about that. We don't do that because on earth it's more efficient to have one large datacenter than many small ones.