University of Hertfordshire

From the same journal

By the same authors

Documents

  • Yongqi Xie
  • Yang Zhou
  • Dongsheng Wen
  • Hongwei Wu
  • George Haritos
  • Hongxing Zhang
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Original languageEnglish
Pages (from-to)169-184
Number of pages16
JournalApplied Thermal Engineering
Volume130
Early online date4 Nov 2017
DOIs
Publication statusPublished - 5 Feb 2018

Abstract

In this article, an experimental study has been conducted to provide better understanding of the transient characteristics of a dual compensation chamber loop heat pipe (DCCLHP) subjected to the acceleration force. A new acceleration test rig was set up to provide the acceleration up to 11 g with three different directions. The heat load on the evaporator ranging from 25 W to 300 W was applied with the acceleration force simultaneously. Experimental results indicated that the DCCLHP could start up at a small heat load of 25 W and the startup behavior was different under acceleration direction conditions because of the vapor-liquid distribution change in the evaporator and compensation chambers (CCs). Under the current operating conditions, the effect of acceleration force was significant to the operating performance at small heat loads whereas was weak at large heat loads. Experimental results also clearly showed that both acceleration magnitude and direction can alter the operating mode. What’s more, it was found that temperature oscillation, reverse flow and evaporation in the evaporator core phenomena occurred under acceleration conditions.

Notes

This document is the Accepted Manuscript version. Under embargo until 4 November 2018. The final, definitive version of this article is available online at doi: https://doi.org/10.1016/j.applthermaleng.2017.11.014.

ID: 12704052