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© MANTRA Innovative Systems 2013
Thermosyphon Heat Pipe Technology
At the center of the systems offered by MANTRA are heavy gauge thermosyphon "heat pipes." Traditional
forms of heat pipes have a wicking mechanism to return the condensate to the evaporator via capillary action. MANTRA thermosyphon
heat pipes are wickless, gravity-assisted heat pipes containing a small amount of working fluid. Each vacuum-sealed pipe operates
as an independent heat transfer unit.
Transfer of the energy occurs when the lower end of the pipe is exposed to a heat source. Utilizing the latent heat
of vaporization, the thermosyphon facilitiates an energy transfer cycle during which the working fluids absorb
the energy and turn to vapor. This energy is released when the working fluids condense at the cooler end of the pipe. The
condensed working fluids return to the hot end of the pipe, and the cycle continues.
Thermosyphon heat pipes are designed to
have very little hydraulic resistance, providing effective heat transfer in the vertical position, or with gradients as low as 5°off horizontal.
The latent heat of vaporization has a high enthalpy value allowing considerable amounts of energy to be transferred with a very small
temperature differential. The amount of energy that can be transferred through the latent heat of vaporization is greater than
can be transferred through traditional convective methods given an equivalent temperature differential.
Standard (smooth) heat pipe