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Influence of geometrical and operating conditions on the performance of the heat pipes: A review

    Authors

    • Zaher Raheem 1
    • Nabeel Dhaidan 2
    • Fadhel Al-Mousawi 3

    1 Mechanical Engineering Department, Engineering College, University of Kerbala, Karbala, Iraq

    2 Mechanical Engineering, College of Engineering, University of Kerbala

    3 Mechanical Engineering Department, College of Engineering, University of Kerbala, Kerbala, Iraq

,

Document Type : Review Article

10.63463/kjes1058
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Abstract

A heat pipe is one of the most effective devices for transferring heat from the heat source to the sink. It is a vacuum-tight device that depends on the phase-change conversion associated with highly effective thermal conductivity. A comprehensive review of experimental and numerical investigations related to the influences of the controlled geometrical parameters and operating variables on the thermal characteristics of heat pipes and thermosyphons is presented. These variables include the diameter and length of the heat pipe, working fluids, energy inputs, filling ratio, tilt angle, coolant flow rate, etc. The thermal features of the heat pipe is described by thermal coefficients and temperature differences through the condenser and evaporator, thermal efficiency, and thermal resistance. It is realized that the thermal resistance reduces, and the thermal coefficients increase with the amount of power input. In addition, the optimum values of tilt angles and fill ratios depend on the other controlled variables. However, the optimum filling ratio ranged from 15%-60%. While the best inclination angle was between 60° and 90°.

Keywords

  • Heat pipe
  • Inclination angle
  • Fill ratio
  • Thermosyphon
  • Thermal resistance
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References
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Kerbala Journal for Engineering Sciences
Volume 2, Issue 3
September 2022
Pages 172-191
Files
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  • PDF 924.78 K
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How to cite
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  • Article View: 2,345
  • PDF Download: 451

APA

Raheem, Z., Dhaidan, N., & Al-Mousawi, F. (2022). Influence of geometrical and operating conditions on the performance of the heat pipes: A review. Kerbala Journal for Engineering Sciences, 2(3), 172-191. doi: 10.63463/kjes1058

MLA

Zaher Raheem; Nabeel Dhaidan; Fadhel Al-Mousawi. "Influence of geometrical and operating conditions on the performance of the heat pipes: A review". Kerbala Journal for Engineering Sciences, 2, 3, 2022, 172-191. doi: 10.63463/kjes1058

HARVARD

Raheem, Z., Dhaidan, N., Al-Mousawi, F. (2022). 'Influence of geometrical and operating conditions on the performance of the heat pipes: A review', Kerbala Journal for Engineering Sciences, 2(3), pp. 172-191. doi: 10.63463/kjes1058

VANCOUVER

Raheem, Z., Dhaidan, N., Al-Mousawi, F. Influence of geometrical and operating conditions on the performance of the heat pipes: A review. Kerbala Journal for Engineering Sciences, 2022; 2(3): 172-191. doi: 10.63463/kjes1058

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