Patent ID: 10631434

Abstract:
A thermosyphon having an evaporator, a condenser having a condenser liquid pool accumulated at the bottom thereof creating a condenser liquid pool surface, a vapor tube fluidly coupling the evaporator to the condenser, and a liquid tube fluidly coupling the condenser to the evaporator, wherein the liquid tube apex is above the condenser liquid pool surface, thereby trapping vapor and preventing liquid from passing from the condenser to the evaporator. The application of heat to the evaporator increases the total system internal temperature and pressure causing condensation of the vapor in the liquid tube. As the liquid level in the liquid tube increases above the lower interior surface of the apex of the liquid tube, the liquid tube is primed thereby creating the pressure head needed to overcome the hydrodynamic losses inside the thermosyphon. Various embodiments allow passive start-up, regardless of the initial distribution of liquid inside the thermosyphon.