开发基于多液滴的发电系统,提高单液滴的能量收集能力

IF 3.1 Q2 MATERIALS SCIENCE, COMPOSITES Functional Composites and Structures Pub Date : 2024-08-29 DOI:10.1088/2631-6331/ad709b
Girak Gwon, Dongik Kam, Sunmin Jang, Moonwoo La, Dongwhi Choi
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引用次数: 0

摘要

由于输出性能高,液滴发电装置(DEG)作为小型电子设备的一种有前途的替代电源,正在引起人们的关注。因此,为了将液滴发电装置用作电源,提高输出功率的努力主要集中在材料改性和引入表面结构的方法上。然而,DEG 操作后,重新配置的液滴会掉落,这一行为特征为从单个液滴获取更多液滴能量留下了空间。在此,我们提出了一种由多个 DEG 单元构成的多 DEG 系统(MDEG),以便从单个水滴收集更多能量。通过 MDEG 的倾斜阶梯结构实现水滴的连续运动,从而使单个水滴在下落过程中多次产生电能。特别是,由两个 DEG 单元组成的两级 MDEG 比单个 DEG 性能高出 45%。因此,本研究通过考虑水滴动力学,为开发 DEG 做出了贡献,而现有的 DEG 研究忽略了这一点。
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Development of multi droplet-based electricity generator system for energy harvesting improvement from a single droplet
Due to high output performance, the droplet-based electricity generator (DEG) is garnering attention as a promising alternative power source for small electronic devices. Accordingly, to utilize the DEG as a power source, the efforts to boost the output have focused on methods to modify material modification and introduce surface structure. However, the behavior feature that the reconfigured droplet falls after the DEG operation leaves room for one more droplet energy harvesting from a single droplet. Here, a multi DEG system (MDEG) constructed with multiple DEG units is proposed to harvest more energy from a single droplet. The continuous movement of a water droplet is realized through the inclined stair structure of the MDEG, resulting in electrical energy generation from a single water droplet as many times as it falls. In particular, 2-step MDEG consisting of two DEG units can have 45% higher performance than a single DEG. Therefore, this study implies a contribution to the development of DEGs by considering the droplet dynamics, which has been overlooked in existing DEG studies.
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来源期刊
Functional Composites and Structures
Functional Composites and Structures Materials Science-Materials Science (miscellaneous)
CiteScore
4.80
自引率
10.70%
发文量
33
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