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1. foobar+(OP)[view] [source] 2025-11-30 03:28:30
I think it is an advantage, the question is just how big, and assume we look only at ongoing operation cost.

- Earth temperatures are variable, and radiation only works at night

- The required radiator area is much smaller for the space installation

- The engineering is simple: CPU -> cooler -> liquid -> pipe -> radiator. We're assuming no constraint on capex so we can omit heat pumps

replies(2): >>Hikiko+w6 >>nosela+aL
2. Hikiko+w6[view] [source] 2025-11-30 04:36:07
>>foobar+(OP)
Radiators on earth mainly do it to air, there's no air in space.
3. nosela+aL[view] [source] 2025-11-30 12:59:13
>>foobar+(OP)
A typical CPU heatsink dissipates 10-30% of heat through radiation, and the rest through convection. In space you're in a vacuum so you can't disipated heat through convection.

You need to rework your physical equipment quite substantially to make up for the fact you can't shed 70-90% of the heat in the same manner as you can down here on Earth

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