Article
Chemistry, Analytical
Kevin Nguyen, Matthew Bryant, In-Hyouk Song, Byoung Hee You, Seyedmeysam Khaleghian
Summary: The study found that the application of PVDF in harvesting energy from tire deformation has great potential, not only for energy collection but also as self-powered sensors. Therefore, PVDF is expected to have a wider application in the field of vehicles in the future.
Article
Energy & Fuels
Zhemin Wang, Yu Du, Tianrun Li, Zhimiao Yan, Ting Tan
Summary: The flute-inspired mechanical-intelligent vibration energy harvester proposed in this study achieves broadband, high-efficiency vibration energy harvesting through self-tuning and self-locking mechanisms. Compared with its linear counterpart, this harvester demonstrates a significant improvement in working bandwidth and power.
Article
Chemistry, Physical
Zhuzhu Shao, Xuan Zhang, Jingfeng Liu, Xingang Liu, Chuhong Zhang
Summary: This study constructs a fabric piezoelectric energy harvester (PEH) by introducing piezoelectric anisotropic BaTi2O5 nanorods (BT2-nr) into piezoelectric polyvinylidene fluoride (PVDF) nanofibers. The developed anisotropic PEH can sensitively identify the forces at different bending directions and is a feasible strategy for fabricating self-powered flexible PEHs with high electromechanical conversion efficiency and multifunctionality for wearable piezoelectric pressure sensors.
Article
Computer Science, Information Systems
Adil Khan, Mukhtaj Khan, Sheeraz Ahmed, Nadeem Iqbal, Mohd Amiruddin Abd Rahman, Muhammad Khalis Abdul Karim, Mohd Shafie Mustafa, Yazid Yaakob
Summary: This paper introduces an energy efficient routing protocol EH-IRSP for UWSNs, utilizing energy harvested relay nodes and dynamic transmission radius. It is compared with existing protocols Co-UWSN and EH-ARCUN, showing superior performance in simulation results.
Article
Physics, Applied
S. Baroudi, H. Samaali, F. Najar
Summary: The nonlinear vibration problem of a clamped-clamped monolithic piezoelectric flexoelectric beam as an energy harvester was investigated. The structure was found to be capable of harvesting energy, with the generated energy mainly attributed to the longitudinal potential variation and the transverse piezoelectric coefficient.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Green & Sustainable Science & Technology
Wenzheng Cai, Vesselina Roussinova, Vesselin Stoilov
Summary: This study proposes, designs, and tests a new concept of a small-scale piezoelectric wave energy harvester based on the acceleration-driven principle. Six piezoelectric generators placed in the enclosure are used as energy conversion devices, providing high-frequency response and the ability to withstand large strain. The device can operate at deployment sites with consistent medium/small wave energy flux and naturally float on the water surface. It is lightweight, cost-effective, and suitable for operation in remote rivers and lakes due to its self-generating capability.
Article
Thermodynamics
Zhonghua Zhang, Shijie Lin, Yiqun Gu, Li Zhang, Shuyun Wang, Shijie Zhai, Junwu Kan
Summary: This study proposes a novel deformation-controllable piezoelectric vibration energy harvester (D-CPVEH) that uses a wedge cam to limit the maximum deformation of the cantilevered piezoelectric vibrator. The results show that the D-CPVEH has high reliability and voltage output.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Review
Chemistry, Physical
Satyaranjan Bairagi, Shahid-ul-Islam, Mohammad Shahadat, Daniel M. Mulvihill, Wazed Ali
Summary: The focus of energy research has shifted towards green renewable technologies due to environmental pollution caused by fossil fuel consumption and the limited lifespan of batteries. At the same time, there is a growing potential for small, wearable, portable electronic devices. In this context, the development of a more effective lightweight power source is essential, and piezoelectric energy harvesting technology has attracted attention.
Article
Materials Science, Composites
Weipeng Sun, Kexin Zhong, Yuanyuan Liu, Hanjie Xiao, Daoli Zhao, Zhimiao Yan, Ting Tan
Summary: This study demonstrates through mathematical analysis and experiments that selecting an appropriate thickness for the substrate of acoustic metamaterials can enhance the output power of acoustic energy harvesters. The findings of this research will contribute to the development of high-performance metamaterial-based acoustic energy harvesters.
COMPOSITES COMMUNICATIONS
(2022)
Article
Green & Sustainable Science & Technology
J. Wang, F. Xiao, H. Zhao
Summary: This paper provides a comprehensive review of thermoelectric, piezoelectric, and photovoltaic technologies used in pavement engineering, comparing their cost-effectiveness and power densities. Each technology has different applications: thermoelectric for mitigating urban heat island effect and pavement rutting, piezoelectric for powering low-power electronics, and photovoltaic for its highest power density.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Dae-Su Kim, Wonjae Choi, Sun-Woo Kim, Eun-Ji Kim, Sahn Nahm, Miso Kim
Summary: This study presents a rational electrode configuration for a piezoelectric energy harvesting (PEH) device that maximizes the energy collection performance of a gradient-index phononic crystal (GRIN PnC) platform. Experimental results demonstrate that the patterned electrode configuration effectively alleviates strain and voltage cancellation while efficiently transferring the focused elastic wave energy. By optimizing the combination of piezoelectric ceramic composition and electrode configuration, a maximum power generation of 7.06 mW is achieved, the largest ever reported in elastic wave energy harvesting.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Analytical
Siyang Hu, Ulrike Fitzer, Khai Chau Nguyen, Dennis Hohlfeld, Jan G. Korvink, Tamara Bechtold
Summary: In recent years, topology optimization has been proven to be the cutting-edge technology in mechanical structure design, while energy harvesting has gained significant attention in both research and industry. This work presents a novel topology optimization approach for a multi-resonant piezoelectric energy-harvester device, aiming to develop a broadband design that can generate constant power output over a range of frequencies, ensuring reliable operation under changing environmental conditions. The optimization results suggest a promising design with satisfactory frequency characteristics.
Article
Engineering, Electrical & Electronic
P. Deepak, Boby George
Summary: This study introduces a new magnetically coupled method to efficiently transfer vibrational energy to a piezoelectric energy harvester from a source where direct physical contact is not possible. The proposed method offers flexibility in adjusting resonant frequency and increases bandwidth and performance by introducing nonlinearity through magnets.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Physical
Lin-Chuan Zhao, Hong-Xiang Zou, Xing Xie, Ding-Hua Guo, Qiu-Hua Gao, Zhi-Yuan Wu, Ge Yan, Ke-Xiang Wei, Wen-Ming Zhang
Summary: Harvesting wave energy through mechanical intelligent energy harvesting is a potential solution for irregular energy harvesting and self-powered Internet of Things (IoT) in marine environment monitoring. A novel concept of adaptive external excitation and regulation of energy harvesting system by mechanical structure or mechanism is proposed, and an irregular wave energy harvesting system is designed based on this concept. Experimental results demonstrate the effectiveness of the harvester at ultra-low frequencies and its capability to achieve a self-powered wireless marine environment monitoring system.
Article
Engineering, Mechanical
Ting Tan, Zhemin Wang, Liang Zhang, Wei-Hsin Liao, Zhimiao Yan
Summary: A new autoparametric vibration energy harvester coupled by a nonlinear energy sink is proposed to extend the working bandwidth for piezoelectric vibration energy harvesting. The study demonstrates that increasing the stiffness and damping of the nonlinear energy sink enhances the average power of the lower boundary of the harvesting band, while increasing the mass of the energy sink and substructural natural frequency ratio improves the average power of the upper boundary. The proposed harvester shows a significant 200% increase in maximum average power compared to a system without the nonlinear energy sink, providing a method for stable broadband vibration energy harvesting with chaos control.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
