Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on the Heat Transfer Characteristics of a Self-Oscillating Heat Pipe

  • Yoon, Seok-Hun (Professor, Division of Marine System Engineering, Korea Maritime University) ;
  • Cheol Oh (Professor, Division of Marine System Engineering, Korea Maritime University) ;
  • Park, Jae-Hyuk (Graduate School, Department of Mechanical Engineering, Hokaido University)
  • Published : 2002.03.01
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Abstract

In this paper, the heat transfer characteristics of a self-oscillating heat pipe are experimentally investigated for the effect of various working fluid fill charge ratios and heat loads. The characteristics of temperature oscillations of the working fluid are also analysed based on chaotic dynamics. The heat pipe is composed of a heating section, a cooling section and an adiabatic section, and has a 0.002m internal diameter, a 0.34m length in each turn and consists of 19 turns. The heating and the cooling portion of each turn has a length of 70mm. A series of experiments was carried out to measure the temperature distributions and the pressure variations of the heat pipe. Furthermore, heat transfer performance, effective thermal conductivity, boiling heat transfer and condensation heat transfer coefficients are calculated for various operating conditions. Experimental results show the efficacy of this type of heat pipe.

Keywords

References

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