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

INDONESIAN JOURNAL OF APPLIED PHYSICS · Vol. 13 No. 2 (2023) · pp. 339–246

DOI
10.13057/ijap.v13i2.67671
ISSN
2477-6416, 2089-0133
Published
2023-11-02
Publisher
Department of Physics, Sebelas Maret University
Language
eng

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.

Keywords

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13 authors · 29 co-authorship links

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Co-authorOrganisationJoint articles
Nurul AzizahAffiliation unknown1
Bayu SujadmikoAffiliation unknown1
Rohaini RohainiAffiliation unknown1
Nobuhide OtomoAffiliation unknown1
Wijayanti Dwi AstutiAffiliation unknown1
Prastowo MurtiAffiliation unknown1
Jihan Zeinyuta RosafiraAffiliation unknown1
Adhika WidyaparagaAffiliation unknown1
Tetsushi BiwaAffiliation unknown1
Rudi NatamiharjaAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://jurnal.uns.ac.id/ijap/oai, first harvested 8 Nov 2026, last seen 8 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en-US">Experimental Study of Storing Electrical Energy Generated by an Acoustic Energy Harvester Into a Supercapacitor</dc:title>
	<dc:creator>Setiawan, Ikhsan</dc:creator>
	<dc:creator>Wibowo, Bagas Wahyu</dc:creator>
	<dc:creator>Prasetya, Rizki Dwi</dc:creator>
	<dc:subject xml:lang="en-US">energy harvester, acoustic energy, energy conversion, electrical energy, supercapacitor</dc:subject>
	<dc:description xml:lang="en-US">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.</dc:description>
	<dc:publisher xml:lang="en-US">Department of Physics, Sebelas Maret University</dc:publisher>
	<dc:contributor xml:lang="en-US">Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada</dc:contributor>
	<dc:date>2023-11-02</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://jurnal.uns.ac.id/ijap/article/view/67671</dc:identifier>
	<dc:identifier>10.13057/ijap.v13i2.67671</dc:identifier>
	<dc:source xml:lang="en-US">INDONESIAN JOURNAL OF APPLIED PHYSICS; Vol 13, No 2 (2023): October; 339-246</dc:source>
	<dc:source>2477-6416</dc:source>
	<dc:source>2089-0133</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://jurnal.uns.ac.id/ijap/article/view/67671/42525</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 INDONESIAN JOURNAL OF APPLIED PHYSICS</dc:rights>
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