Application of heat exchangers on heat pipes for conditioning, food industry and refrigerating engineering

Abstract

Vapordynamic thermosyphon (VDT) is an efficient heat-transfer device. The two-phase flow generation and dynamic interaction between the liquid slugs and vapor bubbles in the annular mini-channel of the VDT condenser are the main features of such thermosyphon, which allow increasing its thermodynamic efficiency. They can transfer heat flow in horizontal position over a long distance. The condenser is nearly isothermal with the length of tens of meters. The VDT evaporators may have different forms. Some practical applications of VDT are considered.