Numerical Study of Flattened Miniature Heat Pipe with Hybrid Porous Wick and Double Heat Sources
Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JASTI-16-2_007
تاریخ نمایه سازی: 8 آبان 1402
Abstract:
Designing flattened miniature heat pipes (FMHPs) for electronic devices is a challenging issue due to high heat flux and limited heat dissipation space. It requires understanding the combined effects of the sintered-grooved wick structure, double heat sources, and flat thickness on heat pipes' thermal efficiency. Therefore, the aim of this study is to numerically investigate the effects of the FMHP with a hybrid wick on the thermal performance of its double heat sources acting as the CPU and GPU in notebook PCs. A transient ۳D finite volume method was used to solve the governing equations and assisted boundary conditions. The cylindrical heat pipe with a ۲۰۰ mm length and ۶ mm outside diameter is flattened into ۲, ۲.۵, ۳, and ۴ mm final thicknesses (FT). The obtained results show that the final critical thicknesses with the lowest thermal resistance are ۲.۵ and ۳ mm for hybrid and grooved wick structures, respectively. Therefore, FMHP with hybrid wicks can be flattened about ۸% more. Hybrid wick structures have the best effect on FMHP thermal performance at FT=۲.۵ mm
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Authors
G. R. Abdizadeh
Aerospace Engineering Department, Amirkabir University of Technology
Sahar Noori
Aerospace Engineering Department, Amirkabir University of Technology
Mohammad Saeedi
Mechanical Engineering Department, Dalhousie University, Halifax,Canada
Hamidreza Tajik
Satellite Research Institute, Tehran, Iran
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