Original high-efficient two-phase heat-transfer devices—loop heat pipes (LHPs)—operating in a closed evaporation–condensation cycle with capillary pumping of a working fluid, have been created at the Institute of Thermal Physics. Capacity and heat conductivity of the LHPs are twice as much as similar characteristics of conventional LHPs of the same sizes.

LHPs can be used as a heat-transfer link in thermoregulation systems, heating and cooling of different objects including PCs, laptops, computer servers and aerospace equipment. The devices allow a wide variety of different design embodiments, are capable of operating in any mode under gravity and in zero gravity conditions.