Ahmed, Farhan, Khatamifar, Mehdi, Lin, Wenxian, and Situ, Rong (2023) Thermal performance of dynamic, origami‐inspired geometries: An experimental study. Heat Transfer, 52 (5). pp. 3799-3816.

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Abstract

Origami has become an increasingly popular geometry in thermal engineering, namely, heat regulatory applications such as heat sinks and radiators. In this study, the radiative heating and radiative and natural convective cooling of three origami geometries (W‐fold, Miura Ori (1), and Miura Ori (2)) made of heavy‐duty aluminum foil under a radiative heater with different powers (800, 1600, and 2400 W) and different compression lengths (0.15, 0.25, 0.35, and 0.45 m) were investigated. It was found that the Miura Ori (1) and Miura Ori (2) geometries have three to four times high temperature differences (the maximum temperature at the end of the heating process minus the initial temperature) than the W‐fold geometry. The Miura Ori (2) and Miura Ori (1) geometries produced high heat capacity enhancements of 1.2–3.2 times at high compression lengths that showed great potential for applications such as solar steam generators. The overall heat transfer coefficient for cooling can be controlled by changing the compression length of the origami geometry, allowing for dynamic surface temperature controls. This parameter decreases by up to 25.3%, 22.6%, and 45.9% for W‐fold, Miura Ori (1), and Miura Ori (2), respectively, in comparison to their flat states.

Item ID:	77970
Item Type:	Article (Research - C1)
ISSN:	2688-4542
Keywords:	apparent absorptivity, heat capacity enhancement, natural convection, origami, radiation
Copyright Information:	This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications oradaptations are made. © 2023 The Authors.
Date Deposited:	28 Mar 2023 00:18
FoR Codes:	40 ENGINEERING > 4012 Fluid mechanics and thermal engineering > 401205 Experimental methods in fluid flow, heat and mass transfer @ 100%
SEO Codes:	17 ENERGY > 1708 Renewable energy > 170805 Solar-thermal energy @ 60% 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering @ 40%
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