Performance assessment of an air-cooled heat exchanger for multiwalled carbon nanotubes-water nanofluids

Tun Ping Teng, Yu Chun Hsu, Wei Ping Wang, Yan Bo Fang

研究成果: 雜誌貢獻期刊論文同行評審

13 引文 斯高帕斯(Scopus)

摘要

This study used a two-step synthesis method to prepare multiwalled carbon nanotubes (MWCNTs)-water nanofluids (MWNFs) with a dispersant of sodium dodecylbenzenesulfonate (SDBS) and an evacuation procedure. The basic characteristics of the MWNFs were measured and analyzed. Then, the MWNFs were used in a cooling system with an air-cooled heat exchanger (ACHE) to evaluate the heat exchange capacity, pumping power, and efficiency factor (EF) of the ACHE. The results show that the pumping power of the cooling system increased with an increase in the MWNFs concentration under all experimental conditions; the maximum enhancements of MWNFs at 0.25 wt.% for the heat exchange capacity and EF were approximately 7.77% and 7.53%, respectively, compared with water. However, increasing the concentration of the MWNFs did not increase the heat exchange capacity and EF. The optimal configuration of the MWNF concentration was 0.25 wt.%.

原文英語
頁(從 - 到)346-355
頁數10
期刊Applied Thermal Engineering
89
DOIs
出版狀態已發佈 - 2015 七月 4

ASJC Scopus subject areas

  • 能源工程與電力技術
  • 工業與製造工程

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