Recent acoustic energy harvesting methods and mechanisms: A review

Patil, Avadhut Tukaram; Mandale, Maruti B.

doi:10.1177/09574565211030702

Cited by 6 publications

(4 citation statements)

References 62 publications

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“…To address the problem, many researchers have turned their focus to harvesting energy from renewable energy sources, developing energy harvesters that exploit forms of energy that are freely available in the environment. These sources can be anything from electromagnetic radiation [4,5], temperature gradients [6][7][8], mechanical stresses [9][10][11][12][13], acoustic waves [14][15][16], and so on.…”

Section: Introductionmentioning

confidence: 99%

Rotating Triboelectric Nanogenerators for Energy Harvesting and Their Applications

Segkos

Tsamis

2023

Nanoenergy Advances

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Addressing the increasing development of IoT networks and the associated energy requirements, rotating triboelectric nanogenerators (R-TENGs) are proving to be strong candidates in the field of energy harvesting, as well as to that of self-powered devices and autonomous sensors. In this work, we review the theoretical framework surrounding the operating principles and key design parameters of R-TENGs, while also associating them with their output characteristics. Furthermore, we present an overview of the core designs used by the research community in energy harvesting applications, as well as variations of these designs along with explicit solutions for the engineering and optimization of the electrical output of R-TENGs. Last but not least, a comprehensive survey of the potential applications of R-TENGs outside the energy harvesting scope is provided, showcasing the working principles of the various designs and the benefits they confer for each specific scenario.

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Section: Introductionmentioning

confidence: 99%

Rotating Triboelectric Nanogenerators for Energy Harvesting and Their Applications

Segkos

Tsamis

2023

Nanoenergy Advances

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“…In addition, self-excited vibration, which is induced by ambient conditions, such as flowinduced vibration [13] and friction-induced vibration [14,15], has received considerable attention for piezoelectric power generation. Similar to these mechanical vibrations, acoustic vibrations are also applied to piezoelectric power generation [16,17]. For example, Liu et al [18] demonstrated the usage of an electromechanical Helmholtz resonator consisting of an orifice, cavity, and piezoelectric diaphragm.…”

Section: Introductionmentioning

confidence: 99%

Noise reduction and power generation in blower duct using Helmholtz resonator with piezoelectric diaphragm

2023

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Ventilation duct systems are indispensable for air purification and room temperature management in industrial and commercial buildings. The noise generated by blowers for ventilating spaces should be as low as possible. In addition, to power the wireless nodes for monitoring the ventilation conditions such as temperature and pressure at any positions in all the ducts, electric power is preferred to be generated in-situ without batteries and wired power supply. In this study, to demonstrate simultaneous noise reduction and in-situ power generation using a Helmholtz resonator with a piezoelectric diaphragm in a straight circular pipe duct, the frequency properties of the sound pressure level (SPL) with/without the piezoelectric diaphragm and its generated voltage were measured using an in-house apparatus simulating an industrial blower duct. The experimental results show that the Helmholtz resonator with the piezoelectric diaphragm has a noise reduction performance similar to that without the piezoelectric diaphragm. Power generation was improved not only by impedance matching between the inner and outer resistance but also by the frequency resonance between the frequency of pressure fluctuation in the Helmholtz resonator and the natural frequency of the piezoelectric diaphragm. The Helmholtz resonator with the piezoelectric diaphragm achieved a noise reduction of 10 dB from an SPL of 103 dB and power generation of 12 µW at an SPL of 93 dB.

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“…The theme of acoustic energy harvesting has aroused great interest among researchers for many years, as summarized by Yuan et al [1] , Patil & Mandale [2] , and Khan & Izhar [3] in their review papers. It is about harnessing noise from the environment to produce electricity.…”

Section: Introductionmentioning

confidence: 99%

“…The advantage of using a loudspeaker is that the electrical energy produced is quite large when compared to that is using a piezoelectric [11][12][13] . On the other hand, the results of research on acoustic energy harvesting that have been reported are mostly only up to the measurement of the electrical power generated [1][2][3][4] , while research on storing it into electrical energy storage units is still lacking. In this research, it would like to develop an acoustic energy harvester that is able to store the generated electrical energy into the supercapacitor.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Storing Electrical Energy Generated by an Acoustic Energy Harvester Into a Supercapacitor

Setiawan,

Wibowo,

Prasetya

2023

Indonesian J Appl Phys

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<p class="Abstract">Acoustic energy harvester is a device used to convert environmental noise into electrical energy. Many researches on acoustic energy harvesting have been carried out, but most of them have not yet reached the stage of storing the electrical energy produced. This paper presents an experimental study of storing electrical energy generated by an acoustic energy harvester into a supercapacitor. The acoustic energy harvester in this study used a 4-inch woofer loudspeaker as a noise converter into electricity, equipped with a straight cylindrical resonator, a cylindrical housing, and an electric current rectifier unit. The supercapacitor used has a specification of 100F/2.7V. Experiments were carried out by using several variations of the sound frequency with three variations of sound pressure level (SPL) namely 90 dB, 95 dB, and 100 dB, and by measuring the supercapacitor voltage in a charging time of 60 minutes. It was found that the supercapacitor voltage reached 368 mV which was obtained from noise sound with an SPL of 100 dB and a frequency of 54 Hz which gave an initial charging electric current of about 12 mA. In the last five minutes of charging, the increase in supercapacitor voltage was still linear with time at a rate of about 5.2 mV/min. Therefore, the supercapacitor voltage can still significantly increase if the charging continues.</p>

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Recent acoustic energy harvesting methods and mechanisms: A review

Cited by 6 publications

References 62 publications

Rotating Triboelectric Nanogenerators for Energy Harvesting and Their Applications

Rotating Triboelectric Nanogenerators for Energy Harvesting and Their Applications

Noise reduction and power generation in blower duct using Helmholtz resonator with piezoelectric diaphragm

Experimental Study of Storing Electrical Energy Generated by an Acoustic Energy Harvester Into a Supercapacitor

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