The Thermal Load Of The System

1517 Words Dec 4th, 2015 7 Pages
I. Introduction

With the continuous increase in technological advancements concerning electronics, so has the thermal load of the system. The management of heat transfer away from these electrical systems is an incredibly important field to study and innovate in. One method of transferring heat continuously with little maintenance on the system is by using a device called a heat pipe. Heat pipes work through capillary action to draw heat away from these electronics without any external interference.
Heat pipes are thin pipes, typically made of some highly conductive metal, which contains a working fluid inside and a thin wicking material which facilitates the capillary action. Figure 1 below shows a sectional view of a heat pipe [1].

Figure 1. Sectional View of a Heat Pipe

Moving from left to right, as to simulate drawing heat away from a high temperature area and transferring it to a lower temperature medium, the working fluid at point 1 in Figure 1 evaporates entirely to a vapor by absorbing the thermal energy from the hotter medium. The vapor flows along the cavity shown all the way to the lower temperature end. Once the fluid reaches this lower temperature end, the working fluid transfers it’s heat quicker as it reaches the end and the vapor condenses into the liquid phase and is then absorbed into the wicking material. The fluid continuously releases thermal energy as it is absorbed into the wicking material and then flows back towards point 1. At this point, due…
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