Thermal efficiency of heat pipe with alumina nanofluid

Tun Ping Teng*, How Gao Hsu, Huai En Mo, Chien Chih Chen

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

52 引文 斯高帕斯(Scopus)

摘要

The study presents the enhancement of thermal efficiency of heat pipe charged with nanofluid. The Al2O3/water nanofluid produced by direct synthesis method is used as the working fluid of experimental heat pipes with three different concentrations (0.5, 1.0 and 3.0 wt.%). The heat pipe is a straight copper tube with inner diameter and length of 8 and 600 mm, respectively. The heat pipes charged with distilled water and nanofluids are tested, respectively. The study discusses about the effects of charge amount of working fluid, tilt angle of heat pipe and weight fraction of nanoparticles on the thermal efficiency of heat pipe. According to the experimental results, the optimum condition of heat pipe is when nanoparticles being at 1.0 wt.%. Under this condition, the thermal efficiency is 16.8%, which is higher than that of heat pipe charged with distilled water. The charge amount can be decreased from 60% to 20%.

原文英語
頁(從 - 到)S380-S384
期刊Journal of Alloys and Compounds
504
發行號SUPPL. 1
DOIs
出版狀態已發佈 - 2010 八月

ASJC Scopus subject areas

  • 材料力學
  • 機械工業
  • 金屬和合金
  • 材料化學

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