Patent attributes
A thermal transfer system, a heat sink, and a method for transferring heat are provided. The thermal transfer system includes a fuel cell that can produce a fluid. A wick is provided to transfer the fluid to a destination at which a heat source is present. An enclosure having a porous fluid-permeable external wall can surround the fluid at the destination. When the fluid permeates or condenses on the external wall exterior surface, air exposure of that external wall will cause evaporative cooling of the fluid, and thereby enhance the cooling effect at the heat source. The fluid is a natural byproduct of the fuel cell. Accordingly, the thermal transfer system not only cools a heat source, but produces electric current. The heat sink can be thermally coupled to the heat source, and can have a plurality of fins extending from a base. One or more fins can have a fluid-permeable external wall for evaporative cooling. Fluid can be transferred more efficiently using a wick placed somewhere within the internal radial dimension of a pipe that extends from the fuel cell to the heat source. The external wall of the pipe can also be porous to maximize the fluid entrapment on the inner surface and the evaporative cooling on the external surface.
