Comment by fsh

2 months ago

A sports car radiator has about that size and dumps 1 MW without boiling the coolant.

A car's "radiator" doesn't actually lose heat by radiation though. It conducts heat to the air rushing through it. That's absolutely nothing like a radiator in a vacuum.

  • That's the point. Forced air cooling is way more efficient than radiative cooling.

  • The question was about comparing the 1400KW of radiative cooling to how much convective coolig you could get from the same radiator on Earth.