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Heat Transfer Performance of a Multi-heat Pipe Using Graphene Oxide/Water Nanofluid

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  • 【题名】:Heat Transfer Performance of a Multi-heat Pipe Using Graphene Oxide/Water Nanofluid
  • 【年份】:2017
  • 【作者】:Mohamed Salem,Tarek A. Meakhail,Magdy A. Bassily,Shuichi Torii
  • 【关键词】:纳米流体  传热性能  氧化石墨  热管  颗粒体积分数  加热部分  纯净水  传热装置
  • 【摘要】:A multi-heat pipe is a device for heat transmission. It is composed of a heating section, a cooling section and an adiabatic section. The heating and cooling sections are the same and both are connected by four circular parallel tubes. This experimental study is performed to investigate heat transfer performance of a multi-heat pipe in the vertical orientation using pure water and GO (graphene oxide)/water nanofluid. GO/water nanofluids were synthesized by the modified Hummers method with 0.05%, 0.1%, 0.15%, and 0.2% volume concentrations. The thermal performance has been investigated with varying heat flux in the range of 10-30 W and 100% fill charge ratio. Wall temperature, thermal resistance, and heat transfer coefficient of the heat pipe are measured and compared with those for the heat pipe using pure water. The experimental results show that the evaporator wall temperature with GO nanofluid is lower than that of the base fluid. Also, the heat pipe that charged with nanofluids showed lower thermal resistance compared with pure water. Heat transfer enhancement is caused by suspended nanoparticles and is pronounced with the increase in particle volume fraction.
  • 【期刊名】:能源与动力工程(英文版)
  • 【分类号】:TQ113.254;TK124
  • 【期号】:第2期
  • 【作者单位】:Department of Mechanical Engineering,Faculty of Energy Engineering,Aswan University,Aswan 81528,Egypt;Department of Mechanical Engineering,Faculty of Engineering,Minia University,Minia 61519,Egypt;Graduate School of Science and Technology,Kumamoto University,Kumamoto 860-8555,Japan
  • 【页码】:95-102
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