Effect of Inclination Angle on the Heat Transfer Performance of a Two-Phase Closed Thermosyphon under Low-Temperature Conditions

Abstract

In this study, a series of laboratory investigations were performed to examine the heat transfer performance of a two-phase closed thermosyphon (TPCT) with different inclination angles under low-temperature conditions. A stainless steel TPCT with ammonia as the working fluid was tested with inclination angles ranging from 0 to 90° from the horizontal. In order to simulate low-temperature conditions, the temperature in the jacket of evaporator section was controlled at