Compact Thermosyphon Using Refrigerant Flow Control

In a compact closed two-phase thermosyphon which consists of a multitube radiator and a refrigerant bath, it is observed that the heat radiation performance drops as the refrigerant bath becomes thin. We have found that this is due to vapor-liquid interaction and dryness in the upper side of the boiling area. We have also improved that heat radiation performance with a new refrigerant flow controller. @ 1999 Scripta Technica, Heat Trans Asian Res, 28(8): 627-639, 1999