Function of the Q-dot Heatpipe
The thermal energy fed to the one face causes the heat transfer medium
to vaporize. This vapor expands in the direction of the cold face where
it condenses into a liquid, so producing heat from condensation.
The heat transfer medium which is now again in liquid form is then conveyed back via the capillary structure and / or by the effect of gravity to the starting point.
This cycle of vaporization and condensation is maintained solely by the difference in temperature between the two faces, without any other drive.