Investigation of the Effect of Number of Turns in Low Fill Rate Heat Pipe with a Single Serpentine Channel

Abstract

The heat generation density of electronic components has increased as electronic devices have become smaller and more powerful. The pulsating heat pipe (PHP) has attracted much attention because of their compactness and high heat transport performance. This study focuses on low filling ratio heat pipe (LFR-HP), which can realize more efficient heat transport than conventional PHP by filling with very small amounts of working fluid. Although the LFR-HP achieves highly efficient heat transport, the details of the heat transport characteristics, such as the operating principle, have not yet been clarified. In this report, the effects of channel number and fill rate on the heat transport performance of LFR-HP were investigated.