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Acoustic energy harvesting using piezoelectric generator for low frequency sound waves energy conversion

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Main Authors: Haris Fazilah, Hassan, Syed Idris, Syed Hassan, Prof. Dr., Rosemizi, Abd. Rahim
Other Authors: harisfazilah@msi.unikl.edu.my
Format: Article
Language:English
Published: Engg Journals Publications 2014
Subjects:
Cantilever
Piezoelectric generator
Resonant frequency
Sound energy
Online Access:http://dspace.unimap.edu.my:80/dspace/handle/123456789/33043
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spelling my.unimap-330432014-03-24T06:47:58Z Acoustic energy harvesting using piezoelectric generator for low frequency sound waves energy conversion Haris Fazilah, Hassan Syed Idris, Syed Hassan, Prof. Dr. Rosemizi, Abd. Rahim harisfazilah@msi.unikl.edu.my syedidris@unimap.edu.my rosemizi@unimap.edu.my Cantilever Piezoelectric generator Resonant frequency Sound energy Link to publisher's homepage at http://www.enggjournals.com/ The applications of electronic devices with low power consumption, such as wireless sensor network and electronic communication devices, are rapidly increasing. Thus, utilizing environmental energy as an alternative to electrochemical battery, which has a finite lifespan, can be a great advantage to these electronic devices. Harvesting environmental energy, such as solar, thermal, wind flow, water current, and raindrops, has attracted increasing research interest in the field of energy harvesting. In this paper, harvesting sound energy in the form of pressure waves is investigated as an alternative to existing energy harvesting methods. In the experimental work, a piezoelectric generator lead zirconate titanate (PZT-5A) cantilever type is used to extract sound energy from the loudspeaker from various distances and then to convert this energy into electrical energy. A direct piezoelectric effect operating in 31 coupling mode is used. The maximum voltage generated by the piezoelectric generator occurs when its resonant frequency is operating near the frequency of sound. An analytical method with an appropriate equation is used to determine the resonant frequency and is then validated using the experimental result. The result shows that the maximum output voltage of 26.7 mVrms was obtained with the sound intensity of 78.6 dB at resonant frequency of 62 Hz at 1 cm distance in the first mode. In the second mode, the maximum output voltage of 91 mVrms was obtained with the sound intensity of 102.6 dB at resonant frequency of 374 Hz at 1 cm distance which is larger than that of the first mode. However, for both modes, voltage decreases as distance increases. 2014-03-24T06:47:58Z 2014-03-24T06:47:58Z 2013 Article International Journal of Engineering and Technology, vol. 5(6), 2013, pages 4702-4707 2319-8613 http://www.enggjournals.com/ijet/vol5issue6.html http://dspace.unimap.edu.my:80/dspace/handle/123456789/33043 en Engg Journals Publications
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Cantilever
Piezoelectric generator
Resonant frequency
Sound energy
spellingShingle Cantilever
Piezoelectric generator
Resonant frequency
Sound energy
Haris Fazilah, Hassan
Syed Idris, Syed Hassan, Prof. Dr.
Rosemizi, Abd. Rahim
Acoustic energy harvesting using piezoelectric generator for low frequency sound waves energy conversion
description Link to publisher's homepage at http://www.enggjournals.com/
author2 harisfazilah@msi.unikl.edu.my
author_facet harisfazilah@msi.unikl.edu.my
Haris Fazilah, Hassan
Syed Idris, Syed Hassan, Prof. Dr.
Rosemizi, Abd. Rahim
format Article
author Haris Fazilah, Hassan
Syed Idris, Syed Hassan, Prof. Dr.
Rosemizi, Abd. Rahim
author_sort Haris Fazilah, Hassan
title Acoustic energy harvesting using piezoelectric generator for low frequency sound waves energy conversion
title_short Acoustic energy harvesting using piezoelectric generator for low frequency sound waves energy conversion
title_full Acoustic energy harvesting using piezoelectric generator for low frequency sound waves energy conversion
title_fullStr Acoustic energy harvesting using piezoelectric generator for low frequency sound waves energy conversion
title_full_unstemmed Acoustic energy harvesting using piezoelectric generator for low frequency sound waves energy conversion
title_sort acoustic energy harvesting using piezoelectric generator for low frequency sound waves energy conversion
publisher Engg Journals Publications
publishDate 2014
url http://dspace.unimap.edu.my:80/dspace/handle/123456789/33043
_version_ 1643797051602894848
score 13.222552

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