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The Effect of Mesh Number and Wick Layers on the Maximum Heat Transfer Capacity of Screen Mesh Wick Heat Pipes Charged with Water, Methanol or Ammonia
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Ali Sistaninia1   , Seyyed Abdolreza Gandjalikhan Nassab *2 , Amin Nanjoo3 |
1- Mechanical Engineering Faculty, Kerman branch, Islamic Azad University, Kerman, Iran
2- Department of Mechanical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran , Ganj110@uk.ac.ir
3- Department of Mechanical Engineering, Kerman branch, Islamic Azad University, Kerman, Iran |
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Abstract: (5 Views) |
Heat pipes are recognized as the most widely used heat exchange devices, capable of dissipating heat from various systems at the fastest possible rate. This paper presents a method based on direct simulation to examine heat transfer along heat pipes. Validation performed shows that this analysis is highly reliable. In this theoretical study, heat transfer is investigated in heat pipes equipped with mesh-screen wick. The present study examines the impact of the number of meshes and wick layers on heat transfer performance using three working fluids (water, ammonia and methanol) over various temperature ranges. The results indicate that the number of meshes and wick layers significantly affect the performance of heat pipes, and optimizing these parameters leads to achieving suitable vapor space, reducing liquid flow losses, and enhancing heat transfer capacity. Additionally, the comparison of working fluids showed that the wick structure not only affects heat transfer capacity but also plays a crucial role in comparing the performance of heat pipes when using different working fluids. These findings emphasize the simultaneous consideration of wick structural parameters and operating temperature to select the appropriate working fluid. |
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| Keywords: : Heat pipe, heat transfer, mesh-screen wick, working fluid, simulation |
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Full-Text [PDF 1209 kb]
(7 Downloads)
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Type of Study: Research |
Subject:
Heat and Mass Transfer
Received: 2026/03/8 | Accepted: 2026/05/18 | Published: 2026/05/31
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