Опубликована: Янв. 1, 2024
Язык: Английский
Nano Energy, Год журнала: 2024, Номер unknown, С. 110383 - 110383
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
12
Energy Technology, Год журнала: 2025, Номер unknown
Опубликована: Март 9, 2025
This study presents a simulation analysis of bimorph cantilever energy harvesters using both lead‐free and conventional piezoelectric materials, focusing on their efficiency for low‐power electromechanical transduction in IoT wearable systems. The materials examined include zinc oxide (ZnO), aluminum nitride (AlN), barium titanate (BaTiO 3 ), lithium niobate (LiNbO alongside such as lead zirconate (PZT5A), Pz21, polyvinylidene fluoride (PVDF), cadmium sulfide (CdS). Advanced simulations evaluate key performance parameters operational resonance frequency, load resistance optimization, W‐plate configurations, assessing influence conversion efficiency. Among the BaTiO demonstrates highest performance, achieving 0.18579 V, 1.61 μW mechanical power, 1.44 electrical power at 80 Hz. In comparison, material PZT5A peaks 71 Hz with 5.295 1183.11 1168.21 power. Under high acceleration (2 g), Pz21 shows superior output, delivering 9.22066 V 3542.52 exhibits optimal 100 kΩ, generating 0.91977 4.23 These findings emphasize critical role selection design optimization enhancing harvesting efficiency, offering sustainable solutions powering devices electronics.
Язык: Английский
Процитировано
1
Опубликована: Апрель 2, 2024
This paper investigates the feasibility of integrating piezoelectric energy harvesting technology into automobile wheels to improve efficiency and promote sustainable power generation. By strategically placing sensors around circumference wheel, rotational motion pressure from road are utilized generate electricity. Through comprehensive analysis simulations, optimal sensor placement, resonant frequency, impedance examined maximize performance. The study evaluates output, current, voltage at common Indian speeds 60 km / h 80 h, considering a charge pump system. results demonstrate significant potential for generation, contributing development self-powered automotive systems, advancing solutions in industry.
Язык: Английский
Процитировано
3
Applied Sciences, Год журнала: 2024, Номер 14(11), С. 4792 - 4792
Опубликована: Май 31, 2024
This paper presents a comprehensive review of the design and implementation methods low-power piezoelectric energy harvesting circuits, which in last few years have gained an extremely large range applications like power sources wearable electronic devices, such as biometrical sensors. Before examining circuitries self-supplied overview structure, equivalent electrical basic parameters generators MEMSs elements is presented. The structure storage (parallel-plate capacitors thin-film supercapacitors), suitable for this type application, also description these components from point view allows them to be easily workable when connected various conversion circuits. Based on principles operation, well some analytical expressions efficiency evaluation, comparative analysis Depending advantages disadvantages known circuit configurations, are systematized tabular form. Practical realizations circuits presented graphic form, ensuring optimal value compactness construction devices.
Язык: Английский
Процитировано
3
Ceramics International, Год журнала: 2025, Номер unknown
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Sensors, Год журнала: 2025, Номер 25(10), С. 3071 - 3071
Опубликована: Май 13, 2025
This paper focuses on the mathematical and numerical modeling of a non-classical macro fiber composite (MFC) piezoelectric transducer, MFC-P2, integrated with an aluminum cantilever beam for energy harvesting applications. It seeks to harness transverse vibration in environment power small electronic devices, such as wireless sensors, where conventional sources are inconvenient. The P2-type composites (MFC-P2) specifically designed They offer high electric source capacitance improved charge generation due strain developed perpendicularly voltage produced. system is modeled analytically using Euler-Bernoulli theory constitutive equations, capturing electromechanical coupling d31 mode. Numerical simulations conducted COMSOL Multiphysics 6.29 reduce complexity model analyze effects material properties, geometric configurations, excitation conditions. theoretical based vibrations cantilevered theory. natural frequencies mode shapes first four determined. Depending these, resonance frequency, voltage, outputs evaluated across 12 kΩ resistive load. results demonstrate that harvester effectively operates near its fundamental resonant frequency 10.78 Hz, achieving highest output approximately 0.1952 V maximum 0.0031 mW. generated sufficient drive ultra-low-power validating viability MFC-based structures autonomous systems. application phenomena obtaining electrical from mechanical can be powerful solutions convert into presents promising solution self-powered mechatronic systems, enabling autonomy embedded well being used structural health monitoring
Язык: Английский
Процитировано
0
Applied Sciences, Год журнала: 2025, Номер 15(10), С. 5530 - 5530
Опубликована: Май 15, 2025
The aim of this research work was to develop and experimentally validate tools support the design manufacture systems that recover electrical energy from mechanical vibrations using non-classical composite piezoelectric transducers. For purpose, a mathematical model type system developed, which then combined with computer-aided engineering application finite element method. In order verify obtained results, test rig set up under consideration its efficiency. results were collated determine accuracy simulating operation transducers acting as electricity generators. developed can be used in for recovery vibrations, view maximising their operating efficiency assumed conditions.
Язык: Английский
Процитировано
0
Micromachines, Год журнала: 2025, Номер 16(6), С. 602 - 602
Опубликована: Май 22, 2025
For complex mechanical transmission equipment, shaft bearings are usually enclosed together with the in internal space of housing to maintain good sealing and reliability. However, it is difficult monitor status bearing through external sensors on housing, while face challenges energy supply data transmission. Therefore, a piezoelectric transducer ring-based harvesting microelectromechanical system (PTR-EH-MEMS) proposed for condition monitoring bearings. Specifically, ring designed convert vibrations into electrical energy, which simultaneously acts as self-powered sensor harvesting. In addition, MEMS embedded processing To verify PTR-EH-MEMS, an experimental investigation implemented under different conditions. The results demonstrate that can achieve maximum DC output 0.8 V root mean square power 43.979 μW within 128 s, effectively identify early-stage faults frequency mode. By combining capability, PTR-EH-MEMS offers compact sustainable approach predictive maintenance rotating machinery, reducing reliance sources enhancing reliability industrial systems.
Язык: Английский
Процитировано
0
Sensors and Actuators A Physical, Год журнала: 2025, Номер unknown, С. 116723 - 116723
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0
Advanced Energy and Sustainability Research, Год журнала: 2024, Номер 6(1)
Опубликована: Ноя. 13, 2024
The ongoing climate crisis requires innovative methods to maximize renewable and sustainable energy resources. There have been advancements in harvesting from ambient motions such as wind, ocean waves, human movements. Dielectric elastomer generators (DEGs) are a promising option for due their high density compatibility with low‐frequency oscillations. This review provides an in‐depth overview of DEGs, including electroactive materials, electromechanical characterization, electronics harvesting, interfacing circuits, prototypes, challenges. DEGs the potential play significant role decarbonizing both small‐ large‐scale applications using sources.
Язык: Английский
Процитировано
1