| A
heat pipe is an efficient heat transfer device
commonly used for cooling an electronic component.
A heat pipe is essentially closed, evacuated
tube lined with a porous structure called "wick
structure" (for CCI by screen wick). The
wick is saturated with a proper amount of working
fluid (for CCI by pure water).
The
liquid phase of the working fluid contained
in the wick structure absorbs thermal energy
from the heated scetion and becomes vapour filling
the heat pipe chamber. Then the dissipation
of the thermal energy at the condensing section
causes the vapour to release the latent heat
and condense. The condensed working fluid is
then sucked back to the evaporating section
along the wick structure through the capillary
force.
This
thermodynamic cycle continues as the thermal
energy is transformed from one section of the
heat pipe to another. It is noted that the temprature
will remain constant as the working fluid goes
through the phase change inside the heat pipe
chamber. This phenomenum makes the heat pipe
a very efficient heat transfer device. Under
the same thermal load conditions, the thermal
conductivity of a heat pipe can be a hundred
times higher than that of a copper rod with
the same cross-sectional area and length.
With
it;s excellent performance and superior thermal
characteristics, a CCI haet pipe will keep your
CPU or the device you want to protect cool and
running smoothly. |