Experimental study of channel roughness effect in diffusion bonded pulsating heat pipes

•This research reports the roughness effect in diffusion bonded pulsating heat pipes.•The device with higher roughness at evaporator zone increases thermal performance.•Stop-over instability appears on the device with increased thermal performance. This study investigates the influence of surface fi...

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Bibliographic Details
Published in:	Applied thermal engineering Vol. 166; p. 114734
Main Authors:	Betancur-Arboleda, Luis Alonso, Flórez Mera, Juan Pablo, Mantelli, Marcia
Format:	Journal Article
Language:	English
Published:	Oxford Elsevier Ltd 05-02-2020 Elsevier BV
Subjects:	Copper Diffusion Diffusion bonding Diffusion effects Diffusion welding Evaporators Heat pipes Hydraulics Nucleation Pipes Roughness Sanding Sandpaper Start-up Stop-over Surface finishing Surface roughness Thermal resistance Thermal stability Vertical orientation Working fluids Start-up Thermal resistance Diffusion bonding Stop-over Roughness
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