Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator
Since the first invention of triboelectric nanogenerators (TENGs) in 2012, many mechanical systems have been applied to operate TENGs, but mechanical contact losses such as friction and noise are still big obstacles for improving their output performance and sustainability. Here, we report on a magn...
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doaj-e92a3be4d6574c608c282f7c85ad48302021-03-22T14:39:58ZengAmerican Association for the Advancement of ScienceResearch2639-52742021-01-01202110.34133/2021/6426130Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric NanogeneratorHakjeong Kim0Hee Jae Hwang1Nghia Dinh Huynh2Khanh Duy Pham3Kyungwho Choi4Dahoon Ahn5Dukhyun Choi6Department of Mechanical Engineering (Integrated Engineering Program),Kyung Hee University,Yongin 17104,Republic of KoreaDepartment of Mechanical Engineering (Integrated Engineering Program),Kyung Hee University,Yongin 17104,Republic of KoreaDepartment of Mechanical Engineering (Integrated Engineering Program),Kyung Hee University,Yongin 17104,Republic of KoreaDepartment of Mechanical Engineering (Integrated Engineering Program),Kyung Hee University,Yongin 17104,Republic of KoreaDepartment of Mechanical Engineering,Korea Aerospace University,Goyang 10540,Republic of KoreaDivision of Mechanical Engineering,Kongju National University,Cheonan 31080,Republic of KoreaDepartment of Mechanical Engineering (Integrated Engineering Program),Kyung Hee University,Yongin 17104,Republic of KoreaSince the first invention of triboelectric nanogenerators (TENGs) in 2012, many mechanical systems have been applied to operate TENGs, but mechanical contact losses such as friction and noise are still big obstacles for improving their output performance and sustainability. Here, we report on a magnet-assembled cam-based TENG (MC-TENG), which has enhanced output power and sustainability by utilizing the non-contact repulsive force between the magnets. We investigate the theoretical and experimental dynamic behaviors of MC-TENGs according to the effects of the contact modes, contact and separation times, and contact forces (i.e., pushing and repulsive forces). We suggest an optimized arrangement of magnets for the highest output performance, in which the charging time of the capacitor was 2.59 times faster than in a mechanical cam-based TENG (C-TENG). Finally, we design and demonstrate a MC-TENG-based windmill system to effectively harvest low-speed wind energy, ~4 m/s, which produces very low torque. Thus, it is expected that our frictionless MC-TENG system will provide a sustainable solution for effectively harvesting a broadband of wasted mechanical energies.http://dx.doi.org/10.34133/2021/6426130 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hakjeong Kim Hee Jae Hwang Nghia Dinh Huynh Khanh Duy Pham Kyungwho Choi Dahoon Ahn Dukhyun Choi |
spellingShingle |
Hakjeong Kim Hee Jae Hwang Nghia Dinh Huynh Khanh Duy Pham Kyungwho Choi Dahoon Ahn Dukhyun Choi Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator Research |
author_facet |
Hakjeong Kim Hee Jae Hwang Nghia Dinh Huynh Khanh Duy Pham Kyungwho Choi Dahoon Ahn Dukhyun Choi |
author_sort |
Hakjeong Kim |
title |
Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator |
title_short |
Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator |
title_full |
Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator |
title_fullStr |
Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator |
title_full_unstemmed |
Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator |
title_sort |
magnetic force enhanced sustainability and power of cam-based triboelectric nanogenerator |
publisher |
American Association for the Advancement of Science |
series |
Research |
issn |
2639-5274 |
publishDate |
2021-01-01 |
description |
Since the first invention of triboelectric nanogenerators (TENGs) in 2012, many mechanical systems have been applied to operate TENGs, but mechanical contact losses such as friction and noise are still big obstacles for improving their output performance and sustainability. Here, we report on a magnet-assembled cam-based TENG (MC-TENG), which has enhanced output power and sustainability by utilizing the non-contact repulsive force between the magnets. We investigate the theoretical and experimental dynamic behaviors of MC-TENGs according to the effects of the contact modes, contact and separation times, and contact forces (i.e., pushing and repulsive forces). We suggest an optimized arrangement of magnets for the highest output performance, in which the charging time of the capacitor was 2.59 times faster than in a mechanical cam-based TENG (C-TENG). Finally, we design and demonstrate a MC-TENG-based windmill system to effectively harvest low-speed wind energy, ~4 m/s, which produces very low torque. Thus, it is expected that our frictionless MC-TENG system will provide a sustainable solution for effectively harvesting a broadband of wasted mechanical energies. |
url |
http://dx.doi.org/10.34133/2021/6426130 |
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