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<p>In an experimental investigation, the thermal performance of mesh wick and sintered heat pipes was examined under various heat input, inclination angle, and working fluid circumstances. The identical geometrical parameters were applied to both kinds of heat pipes: wick thicknesses of 1&#xa0;mm, lengths of 330&#xa0;mm, and outer diameters of 15&#xa0;mm. Analysis of thermal resistance, effective thermal conductivity, and surface temperature distribution were the main objectives of the study. According to the results, the mesh wick heat pipe performed best at a 60° tilt angle, while the sintered wick heat pipe reduced the surface temperature the most at a 45° inclination angle. For both types of heat pipes, the best results were achieved with a 1.0-mass-percent concentration of biosynthesized Ag/DI water nanofluid. In comparison with the mesh wick heat pipe, the sintered wick heat pipe demonstrated a 13.92% reduction in thermal resistance under comparable heat input, mass concentration, and inclination angle conditions. Increased heat input and the presence of biosynthesized silver nanoparticles in DI water significantly improved the thermal conductivity of the heat pipes. In contrast to the mesh wick, the study revealed that the sintered wick enhanced the heat transport capacity by up to 20&#xa0;W while simultaneously decreasing thermal resistance.</p>

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Exploring enhanced heat transfer: a comparative analysis of sintered and mesh wick heat pipes utilizing biologically synthesized silver nanofluids

  • 期刊论文

  • 发表日期：

    2025年10月29日

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  • M Arun,
  • I Rajendran,
  • S Suresh,
  • A. P. Senthil Kumar

摘要

In an experimental investigation, the thermal performance of mesh wick and sintered heat pipes was examined under various heat input, inclination angle, and working fluid circumstances. The identical geometrical parameters were applied to both kinds of heat pipes: wick thicknesses of 1 mm, lengths of 330 mm, and outer diameters of 15 mm. Analysis of thermal resistance, effective thermal conductivity, and surface temperature distribution were the main objectives of the study. According to the results, the mesh wick heat pipe performed best at a 60° tilt angle, while the sintered wick heat pipe reduced the surface temperature the most at a 45° inclination angle. For both types of heat pipes, the best results were achieved with a 1.0-mass-percent concentration of biosynthesized Ag/DI water nanofluid. In comparison with the mesh wick heat pipe, the sintered wick heat pipe demonstrated a 13.92% reduction in thermal resistance under comparable heat input, mass concentration, and inclination angle conditions. Increased heat input and the presence of biosynthesized silver nanoparticles in DI water significantly improved the thermal conductivity of the heat pipes. In contrast to the mesh wick, the study revealed that the sintered wick enhanced the heat transport capacity by up to 20 W while simultaneously decreasing thermal resistance.