An Optimization of Electrical Output Power for Piezoelectric Energy Harvester using Different Micro-Cantilever Beam Geometries

Rosmi, A. S.; Isa, Muzamir; Ismail, B.; Rohani, Mohamad Nur Khairul Hafizi; Wahab, Yufridin

doi:10.1088/1742-6596/1019/1/012033

Cited by 10 publications

(5 citation statements)

References 8 publications

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“…In image processing, impulse noise is randomly distributed throughout the image, and it is independent while uncorrelated to the pixels. For impulse noise corrupted image, not all the image pixels are noisy while a part of it is noise-free another part will be noisy [12,13]. Different type of noise that occurs in impulse noise are salt and pepper and arbitrary valued impulse noise.…”

Section: Impulse Noisementioning

confidence: 99%

Review Study of Image De-Noising on Digital Image Processing and Applications

Abdulah

Rohani²,

Ismail³

et al. 2023

ARASET

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This paper reviews several studies of image de-noising on digital image processing and applications. Noisy images contain different noise that exist either due to environment or electronic interferences. Ergo, de-noising is crucial to eliminate the noise that disturb data collecting process. The impact of de-noising on image processing can result for accurate and precise data collected from the image. Additionally, de-noising process required several crucial steps that help to enhance knowledge on digital image and its application. Hence, study and understanding de-noising can improve multiple aspect such as image quality, data sensitivity and specificity, accuracy of the collected data, and increase the percentage of each parameter.

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Section: Impulse Noisementioning

confidence: 99%

Review Study of Image De-Noising on Digital Image Processing and Applications

Abdulah

Rohani²,

Ismail³

et al. 2023

ARASET

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“…This issue was dealt with at two levels; lowering the resonance frequency of the device to match the ambient vibration and the other level reshaping the architecture and dimensions of the device to match the most common ambient vibration frequency. Shape, architecture, and sizing of the harvester device have been investigated intensively in the literature [30][31][32][33][34][35]. Among the top issues considered in recent research is lowering the resonant frequency of these MEMS micro harvesters to match the ambient vibration and conditions (e.g.…”

Section: Mems Energy Harvesters For Oil and Gas: Options And Challengesmentioning

confidence: 99%

Self-Powering Wireless Sensor Networks in the Oil and Gas Industry

Zarog¹

2023

Nanogenerators and Self-Powered Systems

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The total revenue from the oil and gas industry in 2019 was 3 trillion dollars with nearly 350,000 businesses working in this field. For more efficiency, all machinery and equipment, including thousands of kilometers of transporting pipelines, need to be monitored continuously and in real time. Hundreds or even thousands of sensing and control nodes are needed for the oil and gas industry. WSNs approach has allowed the company to reduce the number of antenna towers and masts at remote sites, which accounts for 40–60% of the infrastructure cost of building a wireless digital oilfield network. A conventional solution to power these nodes is the use of electrochemical batteries. However, problems can occur using batteries due to their finite lifespan. The need for constant replacement in remote locations can become a very expensive or even impossible task. Over the last years, ambient energy harvesters have received great attention, including vibration-to-electric energy conversion. The aim of this chapter is to present the usefulness of implementing IoT and self-powered WSNs in the oil and gas sector, as well as challenges and issues related to adopting such a system.

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“…Furthermore, most of the investigations reported in the review conducted the analysis by coating the whole beam with the piezoelectric material [3][4][5][6][7][8][9][10]. However, in this study, only 1/3rd of the beam was coated with piezoelectric material in unimorph setting.…”

Section: Introductionmentioning

confidence: 98%

“…However, the experiment was performed for a small cantilever where the root width was greater than the beam length. In a computational study, Rosmi et al [5] optimized the output power and demonstrated that modification of the micro-cantilever beam geometry can enhance the output power. A comprehensive study of rectangular and trapezoidal cantilever beams of the same volume, where the length of the trapezoid beam was increased to obtain the same volume, suggested an improved strain distribution and output power from the trapezoidal shape [6].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Study to Select a Cost-Effective Beam Design for Maximizing Power Density in a Cantilever Beam-Based Energy Harvester

Mohiuddin,

Ahmed,

Ahmed

2023

Preprint

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Cantilever beams are the most widely used form of strain-driven energy harvesting, which uses piezoelectric materials. Although researchers are constantly seeking improved power output from cantilever-beam-driven piezoelectric energy harvesters, a systematic and fundamental analysis of the effect of beam geometry on the power capacity of energy harvesters warrants further investigation. Most of the previous research accounts for beams that are fully coated with piezoelectric material. While a larger coating area increases energy output, it also escalates costs as piezoelectric materials are very expensive. Considering the high cost of piezoelectric materials when dealing with limited piezoelectric material, enhancing power output can be achieved by employing a larger base beam and coating a portion of it at the fixed end. As such, the aim of this work is to investigate a wide variety of cantilever beam shapes (e.g., trapezoidal, triangular, V-cut, concave, and convex) with partial piezoelectric material coating on the base beam to maximize the power output capacity of the harvester. To ascertain a comparable argument, the surface area, volume, and mass of all the considered beam shapes are kept consistent, as these parameters influence the power output of the harvester. The geometry of each shape is systematically varied to understand the effect of geometric configuration on the output power density. Finally, the power capacities of all types of beams are compared, and a design is proposed to obtain the maximum power output. It was found that when the surface area of both the beam and piezoelectric material is kept constant and piezoelectric material is located at the fixed end, a trapezoidal beam with a smaller base width and larger free end width is the most efficient in generating power as long as the structural integrity is maintained. The finding is completely opposite as was suggested by previous studies, which proposed that a trapezoidal beam with a smaller free end yields higher output. Instead, this study demonstrates that an inverted trapezoidal beam produced higher output, considering partial coating compared to the full beam coating used in previous studies. Additionally, a correlation is presented on how the beam resonance frequency shifts with variation in beam parameters.

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An Optimization of Electrical Output Power for Piezoelectric Energy Harvester using Different Micro-Cantilever Beam Geometries

Cited by 10 publications

References 8 publications

Review Study of Image De-Noising on Digital Image Processing and Applications

Review Study of Image De-Noising on Digital Image Processing and Applications

Self-Powering Wireless Sensor Networks in the Oil and Gas Industry

A Comprehensive Study to Select a Cost-Effective Beam Design for Maximizing Power Density in a Cantilever Beam-Based Energy Harvester

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