What are Heat Pipes?

A heat pipe is a simple device that can quickly transfer heat from one point to another, which is usually used for cooling an electronic component in air-conditioners, refrigerators, heat exchangers, transistors, capacitors, etc. Heat pipes are also used in laptops to reduce the working temperature for better efficiency.

Take a closer look..

   Heat Pipe Structure

   How do Heat Pipes Operate

   Heat Pipe Operating Animation

   Dynatron Heat Pipe

First, the container is a sealed, hollow tube, which can isolate the working fluid from the outside environment and can maintain the pressure differential across its walls, and enable transfer of heat to take place from and into the working fluid.

Inside walls of the container are lined with a porous structure, which is called capillary structure or wick. The prime purpose of the wick is to generate capillary pressure to transport the working fluid from the condenser to the evaporator.

Finally, the working fluid is contained in wick structured container. The first consideration of choosing a suitable working fluid is the operating vapour temperature range. Most pipes use water and methanol/alcohol as working fluid.

One end of the heat pipe attached to the heat source. As the heat rising to the desired operating temperature, the tube boils the working fluid and turns it into a vapor. As the evaporating fluid fills the hollow center of the wick, it spreads throughout the heat pipe toward to the other cold end. Condensation of the vapor occurs wherever the temperature is even slightly below that of the evaporation area. As it condenses, the vapor gives up the heat it acquired during evaporation and the condensed working fluid is then sucked back to the evaporating section along the wick structure. This thermodynamic cycle continues and helps maintain constant temperatures.

Attaching a heat sink to a portion of the heat pipe makes condensation take place at this point of heat loss and establishes a vapor flow pattern. Capillary action within the wick returns the condensate to the evaporator(heat source) and completes the operating cycle.

Aefficient heat pipe system can be afftected by length of a heat pipe, type of fluid in a heat pipe, return wick type, and the number of bends in a heat pipe.

Dynatron heat pipe technology has been applied to Laptop computer cooling for years. We provide an ideal, cost effective heat pipe solution. Its small, compact profile and light weight allow it to meeting the demanding requirements of laptops.

• Provide high thermal conductivity with small temperature difference
  
• Fast thermal response
  
• Small size and light weight
  
• Large variety of shapes
  
• No electrical power supply required, and maintenance free
  
• Reduce overall system size and costs