Scavenging Energy from Human Activities Using Piezoelectric Material

Ramli, Mohd Hanif Mohd; Yunus, Mochamad; Low, Cheng Yee; Jaffar, Ahmed

doi:10.1016/j.protcy.2014.09.056

Cited by 7 publications

(2 citation statements)

References 9 publications

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“…Це не дає змоги сформувати комплексну уяву щодо ефективності роботи електроприводу в генераторному режимі роботи. Автори статті [21] досліджують пристрій перетворення кінетичної енергії від вібрацій в електричну. У цьому дослідженні розроблено прототип «Vibration Energy Harvester» для оцінки його ефективності при виробленні електроенергії з джерела вібрації.…”

Section: аналіз публікаційunclassified

Research of electrical distribution connections for the electrical energy generation device

Гнатов¹,

Аргун²,

Дзюбенко³

et al. 2018

Vehicle and Electronics. Innovative Technologies

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национальный автомобильно-дорожный университет Анотація. Проведено дослідження та вибір типу двигуна і схем підключення його обмоток в генераторному режимі роботи електромашинного вузла для пристрою перетворення кінетичної та механічної енергії обертання в електричну. Запропо-новано конструкцію та принцип роботи пристрою, що перетворює кінетичну енергію від натискання в електричну. Представлені результати експериментальних досліджень щодо визначення найбільш ефективного типу електродвигу-на у відповідності до значення згенеровано потужності. За результатами експериментів визначено, що за одне обертання в прямому та зворотному напрямку з частотою f = 1,185 Гц більш ефективним є кроковий двигун ДШ 200-1. Ключові слова: електричні двигуни, перетворення електричної енергії, альтернативне джерело енергії, енергозбереження, кроковий двигун, генерація електроенергії.

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Section: аналіз публікаційunclassified

Research of electrical distribution connections for the electrical energy generation device

Гнатов¹,

Аргун²,

Дзюбенко³

et al. 2018

Vehicle and Electronics. Innovative Technologies

View full text Add to dashboard Cite

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“…Over the past decade, significant effort has been put into the R&D of energy-harvesting and conversion devices that operate based on piezoelectric effect. − Unlike the energy harvesters utilizing solar or thermal energy, performance of piezoelectric generators is generally not limited by environment factors. An important driving force for developing piezoelectric energy generators is the growing popularity of personal wearable electronics such as on-garment displays, wearable sensors in sports and medicine, virtual reality devices, and smart watches and bracelets. − In these devices, piezoelectric generators or transducers utilizing mechanical energy from human body motions could be used as power sources or sensor components. Another emerging field where piezoelectric generators could find niche applications relates to self-energized electronics for automotive or aerospace industries.…”

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confidence: 99%

Piezoelectric Micro- and Nanostructured Fibers Fabricated from Thermoplastic Nanocomposites Using a Fiber Drawing Technique: Comparative Study and Potential Applications

2017

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We report an all-polymer flexible piezoelectric fiber that uses both judiciously chosen geometry and advanced materials in order to enhance fiber piezoelectric response. The microstructured/nanostructured fiber features a soft hollow polycarbonate core surrounded by a spiral multilayer cladding consisting of alternating layers of piezoelectric nanocomposites (polyvinylidene enhanced with BaTiO, PZT, or CNT) and conductive polymer (carbon-filled polyethylene). The conductive polymer layers serve as two electrodes, and they also form two spatially offset electric connectors on the fiber surface designed for the ease of connectorization. Kilometer-long piezoelectric fibers of sub-millimeter diameters are thermally drawn from a macroscopic preform. The fibers exhibit high output voltage of up to 6 V under moderate bending, and they show excellent mechanical and electrical durability in a cyclic bend-release test. The micron/nanosize multilayer structure enhances in-fiber poling efficiency due to the small distance between the conducting electrodes sandwiching the piezoelectric composite layers. Additionally, the spiral structure greatly increases the active area of the piezoelectric composite, thus promoting higher voltage generation and resulting in 10-100 higher power generation efficiency over the existing piezoelectric cables. Finally, we weave the fabricated piezoelectric fibers into technical textiles and demonstrate their potential applications in power generation when used as a sound detector, smart car seat upholstery, or wearable materials.

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Piezoelectric Performance of Cubic‐Phase BaTiO₃ Nanoparticles Vertically Aligned via Electric Field

Yun

Shin

Ryu

et al. 2017

Advanced Sustainable Systems

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In general, the piezoelectric generation performance of randomly dispersed particle‐polymer composite nanogenerators is low because of the disconnection between separated nanoparticles and the loss of generating energy on passing through the thick polymer insulating layer. If the nanoparticles are self‐aligned unidirectionally and closely to each other, stress‐induced charges can be generated even with a tiny stimulus with no or less energy loss due to the stress‐sensitive geometric structure and more shortened energy transfer pathways. Herein, a facile electrical orientation method is reported to obtain vertically aligned spherical cubic‐phase BaTiO3 nanoparticle arrays in a polymer matrix for the enhanced piezoelectric power generation. It is observed that the (200) diffraction plane of cubic‐phase BaTiO3 is transformed by an electric field to generate piezoelectric performance. Compared with the randomly dispersed nanoparticle composite, the vertically aligned BaTiO3 array film has excellent electrical output performance (≈3 V and 650 nA) and more than twice the transparency because of reducing light scattering by gathering BaTiO3 nanoparticles. Additionally, it is demonstrated that electric charge generated by a mechanical microloading of 4 µm denting depth using a nanoindenter equipment can pass through the polymer insulating layer in the well‐aligned composite system but not the dispersed system.

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Scavenging Energy from Human Activities Using Piezoelectric Material

Cited by 7 publications

References 9 publications

Research of electrical distribution connections for the electrical energy generation device

Research of electrical distribution connections for the electrical energy generation device

Piezoelectric Micro- and Nanostructured Fibers Fabricated from Thermoplastic Nanocomposites Using a Fiber Drawing Technique: Comparative Study and Potential Applications

Piezoelectric Performance of Cubic‐Phase BaTiO₃ Nanoparticles Vertically Aligned via Electric Field

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Scavenging Energy from Human Activities Using Piezoelectric Material

Cited by 7 publications

References 9 publications

Research of electrical distribution connections for the electrical energy generation device

Research of electrical distribution connections for the electrical energy generation device

Piezoelectric Micro- and Nanostructured Fibers Fabricated from Thermoplastic Nanocomposites Using a Fiber Drawing Technique: Comparative Study and Potential Applications

Piezoelectric Performance of Cubic‐Phase BaTiO3 Nanoparticles Vertically Aligned via Electric Field

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Piezoelectric Performance of Cubic‐Phase BaTiO₃ Nanoparticles Vertically Aligned via Electric Field