Design of origami fin for heat dissipation enhancement. (25th December 2018)

• Record Type: Journal Article
• Authors: Wang, Xu; Jiang, Hanqing
• Is Part Of: Applied thermal engineering. Volume 145(2018)
• Page Start: 674
• Page End: 684
• Publication Date: 2018-12-25
• Subjects: Origami -- Fin -- Heat dissipation -- Enhancement; Heat engineering -- Periodicals; Heating -- Equipment and supplies -- Periodicals; Periodicals; 621.40205
• DOI: 10.1016/j.applthermaleng.2018.09.079
• Languages: English
• ISSNs: 1359-4311

Abstract

Highlights: Geometrical, free and forced convection and radiation models have been established. Decreasing parameters b, α or increasing c increases origami surface area. Narrow origami trench compromises heat dissipation in free convection. Large c creates chaotic flow and enhances dissipation in forced convection. For flow perpendicular to trench, large c increases dissipation and decreases ΔP . Abstract: Recent years have seen the emerging of application of origami in many areas. The extended surface enabled by origami structures apparently has great potential to be employed as fin for heat dissipation where surface area is a major consideration. However, the application of origami in heat transfer and the influence of its geometrical parameters to heat dissipation enhancement have not yet been sufficiently appreciated. Here we propose a fin design of origami shape for free convection, forced convection and radiation heat dissipations. It is found that origami fin can effective increase heat dissipation for all heat transfer scenarios. Origami fin design strategy has also been discussed. This study will provide valuable rationales in harnessing fin of origami shape for heat dissipation.