System for transfer of energy between a hot source and a cold source

A system for transfer of energy between a hot source and a cold source, the system including a capillary evaporator situated in the hot source, and in which a fluid is introduced in the liquid state and changes integrally into the vapor state inside capillary passages, a vapor conduit, a condenser situated in the cold source where the fluid changes back into the liquid state while condensing on surfaces of large radius of curvature, and a liquid conduit which returns the fluid to the capillary evaporator, the fluid circulating in closed circuit under the effect of the pressure generated at the meniscus constituting the liquid/vapor interfaces in the capillary passages of the evaporator,

• in which:
• the closed fluid circuit includes two units each formed by a capillary evaporator connected to the liquid conduit and by a condenser inserted between the capillary evaporator and the vapor conduit, one of the units being placed in the hot source and the other in the cold source;
• and the quantity of fluid is calculated in such a way that the evaporation takes place integrally in the capillary passages of the capillary evaporator situated in the hot source and that the condensation takes place in the condenser situated in the cold source.