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  • Heat pipe

Article: 00053604

Heat pipe

Heat pipe is used when it is required to remove heat from concentrated source immediately & transport to larger surface area to improve heat transfer and heat dissipation efficiency.

Heat pipe are available in various diameter, length & various power handling capacities. Heat sinks with Heat pipe are used for handling power from 40W to multi kilowatt.

A heat pipe is a simple device that can quickly transfer heat from one point to another. It consists of a sealed copper container whose inner surfaces have a capillary wicking material. A heat pipe is similar to a thermo siphon. It differs from a thermo siphon by virtue of its ability to transport heat against gravity by an evaporation-condensation cycle with the help of porous capillaries that form the wick. The wick provides the capillary driving force to return the condensate to the evaporator. The quality and type of wick usually determines the performance of the heat pipe, for this is the heart of the product. Different types of wicks are used depending on the application for which the heat pipe is being used.

When heat is applied at any point along the surface of the heat pipe causes the liquid at that point to boil and enter a vapor state. When that happens, the liquid picks up the latent heat of vaporization. The gas, which then has a higher pressure, moves inside the sealed container to a colder location where it condenses. Thus, the gas gives up the latent heat of vaporization and moves heat from the input to the output end of the heat pipe.

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