AMEC Thermasol have increased their range of heat pipes and can now offer a flat pulsating heat pipe. Heat pipes are used to transfer large amounts of heat quickly without requiring a power source. This is done by utilizing the phenomenon of thermal energy being absorbed when a liquid changes into a gas, and then being released when a gas changes into a liquid state.
In a pulsating heat pipe (PHP), when heat is applied, fluid partially evaporates in nucleation areas inside a serpent shape. Small masses of liquid are converted to much lighter vapour, exerting positive pressure on neighbouring fluid when expanding. The contraction of vapour into heavier liquid in the condenser end applies such to neighbouring fluid. These frequent imbalances in pressure sustains the liquid/vapour flow, thus removing the need for mechanical drivers.
The significant advantage that PHPs have over traditional heat pipes is their anti-gravity properties. They can operate in earth, micro and hyper gravity in any direction, whereas heat pipes can only work efficiently in vertical orientation with the heat source located below the condenser end.
PHPs also have an advantage over copper vapour chambers in that they are more lightweight and have lower thermal resistance. Pulsating heat pipes also offer thermal conductivity of up to 20000W/mk compared to 10000W/mk of copper vapour chambers. PHPs can also be bended and customised without it having any effect on the heat pipe performance. This product also meets REACH and ROHS requirements.
For further information on this series please refer to our product literature. To discuss your application in further detail, please contact our sales team.