Harvesting Raindrop Energy with Piezoelectrics: a Review

Wong, C. J.; Dahari, Zuraini; Manaf, Asrulnizam Abd; Miskam, Muhammad Azman

doi:10.1007/s11664-014-3443-4

Cited by 68 publications

(41 citation statements)

References 66 publications

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“…Here we focus on harvesting mechanical energy, such as vibrations from machines, repetitive body motion or small scale impact. [3,4] Possible methods that can be used are electrostatic or electromagnetic induction and piezoelectricity. [5,6] Current emphasis is on piezoelectric materials as they can directly convert mechanical energy into electrical energy, leading to harvesters with high energy density at small volume, while they are also easy to integrate into systems due to their design flexibility.…”

Section: Introductionmentioning

confidence: 99%

Flexible Lead‐Free Piezoelectric Composite Materials for Energy Harvesting Applications

et al. 2018

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Vibrational piezoelectric energy harvesters are being investigated to replace batteries in embedded sensor systems. The energy density that can be harvested depends on the figure of merit, d33g33, where d33 and g33 are the piezoelectric charge and voltage coefficient. Commonly used piezoelectric materials are based on inorganic ceramics, such as lead zirconium titanate (PZT), as they exhibit high piezoelectric coefficients. However, ceramics are brittle, leading to mechanical failure under large cyclic strains and, furthermore, PZT is classified as a Substance of Very High Concern (SVHC). To circumvent these drawbacks, we fabricated quasi 1–3 potassium sodium lithium niobate (KNLN) ceramic fibers in a flexible polydimethylsiloxane (PDMS) matrix. The fibers were aligned by dielectrophoresis. We demonstrate for the structured composites values of d33g33 approaching 18 pm3 J−1, comparable to that of state‐of‐the‐art ceramic PZT. This relatively high value is due to the reduced inter‐particle distance in the direction of the electric field. As a confirmation, the stored electrical energy for both material systems was measured under identical mechanical loading conditions. The similar values for KNLN/PDMS and PZT demonstrate that environmentally friendly, lead‐free, mechanically compliant materials can replace state‐of‐the‐art environmentally‐less‐desirable ceramic materials in piezoelectric vibrational energy harvesters.

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Section: Introductionmentioning

confidence: 99%

Flexible Lead‐Free Piezoelectric Composite Materials for Energy Harvesting Applications

et al. 2018

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“…422,423 Over recent years, there has been a handful of groups reported and studied the rainfall energy harvesters using piezoelectric materials by the impact of raindrops, but the potential has not been fully realized. [424][425][426][427][428][429] The traffic-induced roadway loading can also be a potential clean and reliable energy source. In the United States, the total energy wasted annually by the motor vehicles on tires is estimated to be about 2.218 Â 10 16 kJ.…”

Section: Future Application Outlooksmentioning

confidence: 99%

A comprehensive review on piezoelectric energy harvesting technology: Materials, mechanisms, and applications

Liu

Zhong

Lee

et al. 2018

Applied Physics Reviews

693

314

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The last decade has witnessed significant advances in energy harvesting technologies as a possible alternative to provide a continuous power supply for small, low-power devices in applications, such as wireless sensing, data transmission, actuation, and medical implants. Piezoelectric energy harvesting (PEH) has been a salient topic in the literature and has attracted widespread attention from researchers due to its advantages of simple architecture, high power density, and good scalability. This paper presents a comprehensive review on the state-of-the-art of piezoelectric energy harvesting. Various key aspects to improve the overall performance of a PEH device are discussed, including basic fundamentals and configurations, materials and fabrication, performance enhancement mechanisms, applications, and future outlooks.

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“…During recent years, particular attention has been given to the possibility of harvest energy from the raindrops by researchers from the region of Malaysia [16][17][18][19][20] and Bangladesh [21].…”

Section: Introductionmentioning

confidence: 99%

“…In this context, the reviews in [16,17] have faced different issues to trace out the efficiency of the system, from the materials to be used (PVDF, PZT [5,9]), including an improved AC/DC rectifying circuits.…”

Section: Introductionmentioning

confidence: 99%

Comparison Among Different Rainfall Energy Harvesting Structures

Viola

2018

Applied Sciences

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Featured Application: With a view to reducing the employment of battery-powered systems to meet environmental requirements, sensors should be powered by energy harvesting systems. Sensors require little energy to perform measurements and also to transmit data; energy that can be recovered from rainwater by the harvesting structures.Abstract: In this paper, an experimental comparison between different rainfall harvesting devices through the study of the electrical rectifying circuit is proposed. In more detail, three harvesting structures are considered: the cantilever, the bridge and the floating circle. Different waveforms were acquired and discussed. The processed data were compared in order to suggest the best choice for the rectifying circuit, from the simplest one to that most frequently endorsed in the technical literature.

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Harvesting Raindrop Energy with Piezoelectrics: a Review

Cited by 68 publications

References 66 publications

Flexible Lead‐Free Piezoelectric Composite Materials for Energy Harvesting Applications

Flexible Lead‐Free Piezoelectric Composite Materials for Energy Harvesting Applications

A comprehensive review on piezoelectric energy harvesting technology: Materials, mechanisms, and applications

Comparison Among Different Rainfall Energy Harvesting Structures

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