Comment by lijok

2 months ago

what do you mean they can’t get rid of heat? radiators exist

https://en.wikipedia.org/wiki/External_Active_Thermal_Contro...

All that gets you 70kW of cooling. Radiating to vacuum isn't very efficient.

  • And that’s sufficient for roughly 100 unoptimized DC grade H200s.

    Not efficient, and it doesn’t have to be, because the cooling system has 0 opex cost. And capex clearly can be made to wor

    • OK, so you've got a football-sized solar and radiator array to support 100 H200s.

      Why are we not building it on land again in some abandoned mall's parking lot?

      1 reply →

  • Cooling space station is very different from cooling off chips. One requires extensive piping, other - a simple radiator.

    • Both require the same thing - moving heat - and you’ll find plenty of piping in a datacenter for this reason.

Space radiators are not very efficient due to lack of airflow in space.

  • Efficiency in the cooling loop is of no consequence as it has 0 opex cost in space. Do the capex numbers make sense?