MICROCHANNEL FIN HEAT EXCHANGER

摘要

An efficient and compact heat exchanger, such as a thermosyphon, having fins with microchannels formed therethrough. The array of microchannels enhances the heat transfer between the fin and the fluid flowing over the fins. The gaseous phase of the working fluid, such as propane, condenses on the condenser sidewalls as heat is removed, and the gaseous phase extends through the center of essentially the entire length of the microchannels. This results in an isothermal fin, which enhances heat transfer due to maximization of the temperature difference between the working fluid and the fluid flowing over the fins.