zlacker

There's a very clever scheme I remember reading about a while ago where you dump the heat into an oil that you then spray in a fine mist towards a collector. You get a collosal surface area that way, in a very confined volume, with not that much more mass than a coolant fluid which you already need; and it's relatively easy to homogenise the temperature across the radiating particles. I seem to recall that it got as far as Dupont coming up with a specific coolant mix for the job; the rest of the system is a relatively well-understood (if precise) nozzle/collector design so you don't end up squirting your coolant off somewhere you can't catch it.

>>regula+(OP)
Are there any liquids with a low enough vapour pressure for this sort of thing?

>>regula+(OP)
In space this wouldn't really work since there's no conduction or convection.

If you think of a big ball of droplet mist. From the point of view of a droplet in the center, it gets heat radiation from all the droplets around it. It can only radiate heat to black sky it sees, and it might be none, it's "sky" is just filled by other hot droplets. So it doesn't cool at all.

The total power radiated can't exceed the proportion to the macro surface area with tricks.