Heat pipe radiator work principle

Radiator, we listen more often and understand it. But do not know whether the heat pipe radiator has heard it? What is the working principle of the heat pipe radiator? This article collects and collates some information to share with you, hoping to help everyone.

The principle of heat pipe radiator Heat pipe radiator is an excellent heat transfer of artificial components, commonly used heat pipe consists of three parts: the main body is a closed metal pipe, there are a small amount of working medium and capillary structure, the air inside the pipe and other Inclusions must be excluded. The heat pipe utilizes three principles of physics:

(1) In the vacuum state, the boiling point of the liquid decreases;

(2) The latent heat of vaporization of the same substance is much higher than the sensible heat;

(3) The suction force of the porous capillary structure on the liquid allows the liquid to flow.

Heat pipe heat sink working process and a section near the heat source (evaporation section) liquid heat absorption and evaporation, vapor carrying latent heat of vaporization flows through the cavity to another section (condenser section), the gas heat exchange heat transfer outside the tube wall and the latent heat The heat transfer task is completed, condensed into a liquid, and returned to the evaporation section via the capillary structure suction force or gravity to enter the next working cycle.

Heat pipe uses the principle of “phase change” heat transfer and the natural heat transfer methods of metal copper, aluminum and other solid materials are completely different. The effective thermal conductivity of a heat pipe is hundreds of times that of non-ferrous metals such as copper and aluminum. Therefore, the heat pipe is a major invention and scientific and technological achievement in the field of heat transfer and brings great practical value to the human society.