A pin heat pipe or heat is the heat transfer device that combines the principles of both the thermal conductivity and phase transition to efficiently manage the transfer of heat between two solid interfaces. At the interface of heat in the heat pipe, which is usually at very low pressure, the liquid in contact with the thermally conductive solid surface turned into steam by absorbing heat from the surface. vapor that condenses back to liquid at the cold interface, releasing latent heat. The liquid then returns to the heat interfaces either through capillary action or the action of gravity in which evaporated once again and repeat the cycle. In addition, the heat pipe internal pressure can be adjusted or adapted to facilitate a phase change depending on the demands of working conditions of thermal systems are managed.
