Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김선정 | - |
dc.date.accessioned | 2019-12-08T10:00:43Z | - |
dc.date.available | 2019-12-08T10:00:43Z | - |
dc.date.issued | 2018-06 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v. 8, Article no. 8712 | en_US |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://www.nature.com/articles/s41598-018-26983-4 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/119095 | - |
dc.description.abstract | The development of practical, cost-effective systems for the conversion of low-grade waste heat to electrical energy is an important area of renewable energy research. We here demonstrate a thermal energy harvester that is driven by the small temperature fluctuations provided by natural convection. This harvester uses coiled yarn artificial muscles, comprising well-aligned shape memory polyurethane (SMPU) microfibers, to convert thermal energy to torsional mechanical energy, which is then electromagnetically converted to electrical energy. Temperature fluctuations in a yarn muscle, having a maximum hot-to-cold temperature difference of about 13 degrees C, were used to spin a magnetic rotor to a peak torsional rotation speed of 3,000 rpm. The electromagnetic energy generator converted the torsional energy to electrical energy, thereby producing an oscillating output voltage of up to 0.81 V and peak power of 4 W/kg, based on SMPU mass. | en_US |
dc.description.sponsorship | This work was supported by the Creative Research Initiative Center for Self-Powered Actuation of the National Research Foundation and the Ministry of Science, ICT & Future Planning (MSIP) in Korea. Support in Australia was from Centre of Excellence funding from the Australian Research Council. Support in the USA was from Air Force Grant AOARD-FA2386-13-4119, Air Force Office of Scientific Research grant FA9550-15-1-0089, and Robert A. Welch Foundation grant AT-0029. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | NATURE PUBLISHING GROUP | en_US |
dc.subject | NANOTUBE YARN MUSCLES | en_US |
dc.subject | ARTIFICIAL MUSCLES | en_US |
dc.subject | NANOFIBERS | en_US |
dc.title | Harvesting electrical energy from torsional thermal actuation driven by natural convection | en_US |
dc.type | Article | en_US |
dc.relation.volume | 8 | - |
dc.identifier.doi | 10.1038/s41598-018-26983-4 | - |
dc.relation.page | 1-7 | - |
dc.relation.journal | SCIENTIFIC REPORTS | - |
dc.contributor.googleauthor | Kim, Shi Hyeong | - |
dc.contributor.googleauthor | Sim, Hyeon Jun | - |
dc.contributor.googleauthor | Hyeon, Jae Sang | - |
dc.contributor.googleauthor | Suh, Dongseok | - |
dc.contributor.googleauthor | Spinks, Geoffrey M. | - |
dc.contributor.googleauthor | Baughman, Ray H. | - |
dc.contributor.googleauthor | Kim, Seon Jeong | - |
dc.relation.code | 2018003596 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF ELECTRICAL AND BIOMEDICAL ENGINEERING | - |
dc.identifier.pid | sjk | - |
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