SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2020, Vol. 28 ›› Issue (3): 913-922.DOI: 10.1016/j.cjche.2019.06.006

• Materials and Product Engineering • 上一篇    下一篇

Synthesis and characterization of hybrid graphene nanocoolant for heat transfer dissipation in microchannel heat sinks

Sudha G.1, Parthiban R.2   

  1. 1 Department of Chemical Engineering, Sri Venkateswara College of Engineering, Pennalur, Tamilnadu 602 117, India;
    2 Department of Chemical Engineering, SSN College of Engineering, Kalavakkam, Tamilnadu 603 110, India
  • 收稿日期:2019-03-12 修回日期:2019-05-28 出版日期:2020-03-28 发布日期:2020-06-11
  • 通讯作者: Parthiban R.

Synthesis and characterization of hybrid graphene nanocoolant for heat transfer dissipation in microchannel heat sinks

Sudha G.1, Parthiban R.2   

  1. 1 Department of Chemical Engineering, Sri Venkateswara College of Engineering, Pennalur, Tamilnadu 602 117, India;
    2 Department of Chemical Engineering, SSN College of Engineering, Kalavakkam, Tamilnadu 603 110, India
  • Received:2019-03-12 Revised:2019-05-28 Online:2020-03-28 Published:2020-06-11
  • Contact: Parthiban R.

摘要: An attempt is made to examine the effect of hybrid nanocoolant in microchannel heat sink for computer cooling. Two-hybrid coolants with graphene as one of the prime components are synthesized and images of the particles are shown using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Heat transfer properties like thermal conductivity of the hybrid fluid, specific heat, density, and viscosity are evaluated experimentally and theoretically. The heat transfer characteristics are also studied in heat sink channels of micro level in the processors of personal computers. The parameters like internal heat transfer coefficient, thermal resistances and base temperature representing the processor temperature are examined for the applied heater power of 325 W. The coolant dilution was varied in the range of 0.05 vol%, 0.075 vol% and 0.1 vol% and the base temperature is noted. The recorded lowest base temperature is 310.01 K for the concentration of 0.1 vol% graphene-iron oxide (GFO) system for 0.5 mm fin spacing for the graphene-iron oxide hybrid coolant and for graphene oxide-iron oxide (GOFO) hybrid coolant it is 311.24 K for the same operating conditions.

关键词: Graphene hybrid nanocoolant, Microchannel, CPU base temperature

Abstract: An attempt is made to examine the effect of hybrid nanocoolant in microchannel heat sink for computer cooling. Two-hybrid coolants with graphene as one of the prime components are synthesized and images of the particles are shown using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Heat transfer properties like thermal conductivity of the hybrid fluid, specific heat, density, and viscosity are evaluated experimentally and theoretically. The heat transfer characteristics are also studied in heat sink channels of micro level in the processors of personal computers. The parameters like internal heat transfer coefficient, thermal resistances and base temperature representing the processor temperature are examined for the applied heater power of 325 W. The coolant dilution was varied in the range of 0.05 vol%, 0.075 vol% and 0.1 vol% and the base temperature is noted. The recorded lowest base temperature is 310.01 K for the concentration of 0.1 vol% graphene-iron oxide (GFO) system for 0.5 mm fin spacing for the graphene-iron oxide hybrid coolant and for graphene oxide-iron oxide (GOFO) hybrid coolant it is 311.24 K for the same operating conditions.

Key words: Graphene hybrid nanocoolant, Microchannel, CPU base temperature