Acoustic energy harvesting using piezoelectric generator for railway environmental noise

Noh, Hee-Min

doi:10.1177/1687814018785058

Cited by 38 publications

(17 citation statements)

References 18 publications

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“…In the measurement, the mean value of the voltage generated over a 10-second period was used. The voltage measurement results for the piezoelectric device's rectangular plate confirmed the generation of voltages ranging from 0.22 to 0.70 volts [7]. Rahman et al,in [8] present us information that a system has been updated and the system can convert vibration and sound into electrical energy.…”

Section: Introductionmentioning

confidence: 74%

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Design and Investigation of Energy Harvesting System from Noise

Hossain¹,

Ovi²,

Khan³

2021

EPE

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In order to survive in this modern world, electricity is an essential thing. Electricity allows us to power the technology we use every day. Without electricity, people can't imagine their lives. As a developing country, Bangladesh still lacks electricity every day. The electricity supply to the rural areas is very poor. It is known that energy can be converted from one form to another form. As noise is the energy, it can also be converted into various forms of energy. Noise can be represented as a sound that is loud or unpleasant and causes disturbances such as street traffic sounds, construction sounds, airports, etc. Using a suitable transducer, noise (sound) energy can be transferred into a viable source of electricity generation. This can be accomplished by employing a transducer and converting noise-induced vibrations into electrical energy. Our main goal is getting enough energy, reducing the pressure of the main grid of electricity and decreasing fossil fuel imports. This paper presents the design and investigation of an energy harvesting system from noise. In this paper, an application is designed to get energy from noise by using a speaker as a transducer. Voltage has been stepped up by using a transformer, a diode which gives DC value which can be tapped into a battery and provide energy from the battery when it is needed. The embedded device was initially tested by clapping hands and tested further by using car horns. The vibrations created by car horns and other noises have been converted into electrical energy through the principle of electromagnetic induction. In total, the application produced optimal results of 0.5 -1.0 volts which were stepped up using a transformer while maintaining the whole system being low cost and user-friendly.

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Section: Introductionmentioning

confidence: 74%

“…These materials convert sound to mechanical energy and mechanical energy converts it into electrical energy [7]. In an experiment, the electric energy created in the piezoelectric element was measured utilizing the acoustic excitation of the speaker connected to the resonator.…”

Section: Introductionmentioning

confidence: 99%

Design and Investigation of Energy Harvesting System from Noise

Hossain¹,

Ovi²,

Khan³

2021

EPE

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“…The purpose of the study is to explore the possibility of generating electrical potential from constant high-intensity sound. The [1], [2] source of loud noises can be found in many places and devices such as disco machines, karaoke, construction areas, factories, concerts, clubs, busy streets, airport railways and loudspeakers. The developed technique that produces electrical energy through sound energy helps in reducing pollution [3].…”

Section: Introductionmentioning

confidence: 99%

Sound to electric energy generating device

Dayaday

Olivo

2021

IJEECS

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This paper presents the potential of an electromagnetic transducer device in a form of audio speaker that is used to capture sound waves to be converted into electricity. It is an interesting concept but less explored by researchers. The objective of the study is to measure the potential of electromagnetic transducer as a way to generate electricity. It deals with the creation of electricity through movement and magnetism. Sound waves can induce movement on the surface which in turn moves the transducer thus creating electricity. The source of sound was coming from an 8-inch subwoofer speaker with a frequency of 80 Hz that was held constant throughout the experiment. Furthermore, using simple linear regression analysis, the study showed that for every linear increase of sound intensity level and distance of the source, there is an exponential increase and an exponential decrease in the voltage root mean square (RMS) respectively. The functionality assessment of the device was statistically analyzed using completely randomized design. It was found that the energy level significantly increased as the sound intensity level increases given a fixed distance of 15 mm from the source. The device could generate enough energy to power small electronics such as light emitting diodes (LED), transistor and resistor.

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“…Among the forms of this effort is the development of energy harvesters. Energy harvesters are devices that can absorb the energy wasted in the surroundings and change it to more useful forms [1,2]. These harvesters may rely-among other types of materials-on piezoelectric materials to change the captured energy from one form to another.…”

Section: Introductionmentioning

confidence: 99%

The Potential of Cylindrical Piezoelectric Transducers for High-Frequency Acoustic Energy Harvesting

2021

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The work presented in this paper studies the potential of cylindrical piezoelectric transducers for harvesting high-frequency acoustic energy. The cylinder was made of a modified PZT (lead zirconate titanate) and had the shape of a squared cylinder with a side length of 4 cm and a wall thickness of 1 mm. The study used open-circuit measurements to study the relationship between the sound wavelength and the cylinder size and its effect on the performance of energy harvesting. The cylinder was found to give the best performance at a frequency of 20 kHz. In addition to open-circuit measurements, closed-circuit measurements were performed to demonstrate the ability to dissipate energy harvested from 20 kHz sound waves across an electric load. The load was designed in a series of experimental steps that aimed at optimizing an impedance-matched energy harvester. Finally, the cylinder was tested at the optimized load conditions, and it was possible to harvest and store energy with a power of 67.6 μW and harvesting efficiency of 86.1%.

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Acoustic energy harvesting using piezoelectric generator for railway environmental noise

Cited by 38 publications

References 18 publications

Design and Investigation of Energy Harvesting System from Noise

Design and Investigation of Energy Harvesting System from Noise

Sound to electric energy generating device

The Potential of Cylindrical Piezoelectric Transducers for High-Frequency Acoustic Energy Harvesting

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