Cargando…
Theoretical demonstration of a capacitive rotor for generation of alternating current from mechanical motion
Innovative concepts and materials are enabling energy harvesters for slower motion, particularly for personal wearables or portable small-scale applications, hence contributing to a future sustainable economy. Here we propose a principle for a capacitive rotor device and analyze its operation. This...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8209174/ https://www.ncbi.nlm.nih.gov/pubmed/34135333 http://dx.doi.org/10.1038/s41467-021-23891-6 |
_version_ | 1783709071690432512 |
---|---|
author | Haimov, Ehud Chapman, Aidan Bresme, Fernando Holmes, Andrew S. Reddyhoff, Tom Urbakh, Michael Kornyshev, Alexei A. |
author_facet | Haimov, Ehud Chapman, Aidan Bresme, Fernando Holmes, Andrew S. Reddyhoff, Tom Urbakh, Michael Kornyshev, Alexei A. |
author_sort | Haimov, Ehud |
collection | PubMed |
description | Innovative concepts and materials are enabling energy harvesters for slower motion, particularly for personal wearables or portable small-scale applications, hence contributing to a future sustainable economy. Here we propose a principle for a capacitive rotor device and analyze its operation. This device is based on a rotor containing many capacitors in parallel. The rotation of the rotor causes periodic capacitance changes and, when connected to a reservoir-of-charge capacitor, induces alternating current. The properties of this device depend on the lubricating liquid situated between the capacitor’s electrodes, be it a highly polar liquid, organic electrolyte, or ionic liquid – we consider all these scenarios. An advantage of the capacitive rotor is its scalability. Such a lightweight device, weighing tens of grams, can be implemented in a shoe sole, generating a significant power output of the order of Watts. Scaled up, such systems can be used in portable wind or water turbines. |
format | Online Article Text |
id | pubmed-8209174 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-82091742021-07-01 Theoretical demonstration of a capacitive rotor for generation of alternating current from mechanical motion Haimov, Ehud Chapman, Aidan Bresme, Fernando Holmes, Andrew S. Reddyhoff, Tom Urbakh, Michael Kornyshev, Alexei A. Nat Commun Article Innovative concepts and materials are enabling energy harvesters for slower motion, particularly for personal wearables or portable small-scale applications, hence contributing to a future sustainable economy. Here we propose a principle for a capacitive rotor device and analyze its operation. This device is based on a rotor containing many capacitors in parallel. The rotation of the rotor causes periodic capacitance changes and, when connected to a reservoir-of-charge capacitor, induces alternating current. The properties of this device depend on the lubricating liquid situated between the capacitor’s electrodes, be it a highly polar liquid, organic electrolyte, or ionic liquid – we consider all these scenarios. An advantage of the capacitive rotor is its scalability. Such a lightweight device, weighing tens of grams, can be implemented in a shoe sole, generating a significant power output of the order of Watts. Scaled up, such systems can be used in portable wind or water turbines. Nature Publishing Group UK 2021-06-16 /pmc/articles/PMC8209174/ /pubmed/34135333 http://dx.doi.org/10.1038/s41467-021-23891-6 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Haimov, Ehud Chapman, Aidan Bresme, Fernando Holmes, Andrew S. Reddyhoff, Tom Urbakh, Michael Kornyshev, Alexei A. Theoretical demonstration of a capacitive rotor for generation of alternating current from mechanical motion |
title | Theoretical demonstration of a capacitive rotor for generation of alternating current from mechanical motion |
title_full | Theoretical demonstration of a capacitive rotor for generation of alternating current from mechanical motion |
title_fullStr | Theoretical demonstration of a capacitive rotor for generation of alternating current from mechanical motion |
title_full_unstemmed | Theoretical demonstration of a capacitive rotor for generation of alternating current from mechanical motion |
title_short | Theoretical demonstration of a capacitive rotor for generation of alternating current from mechanical motion |
title_sort | theoretical demonstration of a capacitive rotor for generation of alternating current from mechanical motion |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8209174/ https://www.ncbi.nlm.nih.gov/pubmed/34135333 http://dx.doi.org/10.1038/s41467-021-23891-6 |
work_keys_str_mv | AT haimovehud theoreticaldemonstrationofacapacitiverotorforgenerationofalternatingcurrentfrommechanicalmotion AT chapmanaidan theoreticaldemonstrationofacapacitiverotorforgenerationofalternatingcurrentfrommechanicalmotion AT bresmefernando theoreticaldemonstrationofacapacitiverotorforgenerationofalternatingcurrentfrommechanicalmotion AT holmesandrews theoreticaldemonstrationofacapacitiverotorforgenerationofalternatingcurrentfrommechanicalmotion AT reddyhofftom theoreticaldemonstrationofacapacitiverotorforgenerationofalternatingcurrentfrommechanicalmotion AT urbakhmichael theoreticaldemonstrationofacapacitiverotorforgenerationofalternatingcurrentfrommechanicalmotion AT kornyshevalexeia theoreticaldemonstrationofacapacitiverotorforgenerationofalternatingcurrentfrommechanicalmotion |