These act as a thermal superconductor (typically copper-water in terrestrial applications or for box-level space cooling, and aluminum-ammonia (CCHPs) in radiator designs in space applications).
These heat pipes have an inner cavity and are highly isothermal.
These have a non-condensable gas loading to help maintain the evaporator temperature under changing conditions.
A form of VCHP where the reservoir size or gas loading can be changed.
These allow heat flux transformation, and heat spreading in two dimensions.
These are thermally enhanced conduction cards or plates. Embedding heat pipes greatly improves the effective thermal conductivity to 500-1200 W/m K.
Energy recovery systems for commercial buildings, contributing to carbon emission reduction efforts.
A diode heat pipe is used when it is necessary to prevent heat flow in the reverse direction.
Gravity-aided thermosyphon variant with different flow paths for the vapor and liquid.
Where the centrifugal forces generated in a rotating system return the fluid, rather than relying on a wick.
These are passive, two-phase heat transport devices.
This is a Heat Pipe variant with wick only in the evaporator, allowing operation over longer lengths.
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