Energy Harvesting From Bicycle Vibrations

Doria, Alberto; Marconi, Edoardo; Moro, Federico

doi:10.1109/tia.2021.3116221

Cited by 6 publications

(5 citation statements)

References 33 publications

(44 reference statements)

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“…The cantilever harvester is modeled with a single-mode approach, which in most cases gives accurate results [ 9 ] and is widely described in [ 19 , 24 ] and validated in [ 28 ]. However, the base acceleration term

, which excites the cantilever beam, must be analyzed and discussed.…”

Section: Harvesting By Means Of Cantilever Harvestersmentioning

confidence: 99%

Vibration Energy Harvesting by Means of Piezoelectric Patches: Application to Aircrafts

Tommasino

Moro

Bernay

et al. 2022

Sensors

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Vibration energy harvesters in industrial applications usually take the form of cantilever oscillators covered by a layer of piezoelectric material and exploit the resonance phenomenon to improve the generated power. In many aeronautical applications, the installation of cantilever harvesters is not possible owing to the lack of room and/or safety and durability requirements. In these cases, strain piezoelectric harvesters can be adopted, which directly exploit the strain of a vibrating aeronautic component. In this research, a mathematical model of a vibrating slat is developed with the modal superposition approach and is coupled with the model of a piezo-electric patch directly bonded to the slat. The coupled model makes it possible to calculate the power generated by the strain harvester in the presence of the broad-band excitation typical of the aeronautic environment. The optimal position of the piezoelectric patch along the slat length is discussed in relation with the modes of vibration of the slat. Finally, the performance of the strain piezoelectric harvester is compared with the one of a cantilever harvester tuned to the frequency of the most excited slat mode.

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, which excites the cantilever beam, must be analyzed and discussed.…”

Section: Harvesting By Means Of Cantilever Harvestersmentioning

confidence: 99%

Vibration Energy Harvesting by Means of Piezoelectric Patches: Application to Aircrafts

Tommasino

Moro

Bernay

et al. 2022

Sensors

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“…The Internet of Things (IoT) comprises physical devices, vehicles, robots, and living things, including humans, that are interconnected through networks. Data exchange through embedded terminals realizes innovative technologies, such as improved work efficiency through cooperation, automated driving systems, and real-time biological monitoring, for practical use. − To overcome power supply problems for embedded terminals, such as infrastructure sensors and smart watches, energy-harvesting technologies that generate power from ambient is essential for realizing IoT. − Energy-harvesting technologies that convert various ambient energies, such as light, heat, vibration, and static electricity, into power have been extensively explored. − Among these, thermoelectric generators (TEGs), which convert heat into electricity, have stable power generation regardless of weather conditions or mechanical drive mechanisms. Various types of TEGs have been developed, such as metal alloys with high thermoelectric conversion capabilities and flexible soft materials suitable for clothing applications. − Recently, single-walled carbon nanotubes (CNTs) have gained increasing attention as a potential thermoelectric material. − Theoretical and experimental studies have proven that controlling specific parameters, such as chirality, length, and carrier concentration, can lead to high thermoelectric conversion ability, as demonstrated by the power factor PF and figure of merit ZT .…”

Section: Introductionmentioning

confidence: 99%

Aerosol Doping System for Microscale Seamless p–n Patterning of Carbon Nanotube Films

Suzuki,

Terasaki

2024

ACS Appl. Mater. Interfaces

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Carbon nanotube (CNT) films are extensively researched as a promising material for wearable thermoelectric generators (TEGs) owing to their good flexibility and high thermoelectric conversion ability. Miniaturizing a pair of p- and n-type thermocouples and increasing the number of repeating elements can effectively increase the power of TEGs. However, conventional p–n patterning methods, such as dipping and printing, have a coarse resolution at the submillimeter level, thereby limiting the miniaturization rate. This study developed an aerosol doping system as a fine n-doping method. A dopant aerosol with a <3 μm diameter was formed through ultrasonic nebulization and air separation, while n-doping was achieved by exposing the CNT film to the dopant aerosol. Microscale p–n patterning of 1 μm was achieved through exposure using small-sized aerosols at an exceptionally slow rate of 3 Å/min. This resolution is 100 times higher than those of conventional p–n patterning methods. The developed aerosol doping system for CNTs can also be used on organic semiconductor materials, such as PEDOT/PSS and perovskite materials. Therefore, it has the potential to significantly impact the realization of Internet of Things (IoT) terminals, such as flexible TEGs, transistors, and solar cells.

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“…In the piezoelectric EH, the harvester generates electric power from kinetic energy in the environment (e.g., the weaving movement in bicycle riding) using piezoelectric materials. Several authors have researched this EH method in the bicycle context [15][16][17][18]. In the friction EH, using a transducer (e.g., a triboelectric generator), the harvester generates electric power from friction between surfaces in the environment, such as the friction produced by the bicycle breaking.…”

Section: Introductionmentioning

confidence: 99%

A Bicycle-Embedded Electromagnetic Harvester for Providing Energy to Low-Power Electronic Devices

Urbina,

Baron,

Carvajal

et al. 2023

Electronics

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Bicycles are rapidly gaining popularity as a sustainable mode of transportation around the world. Furthermore, the smart bicycle paradigm enables increased use through the Internet of Things applications (e.g., GPS tracking systems). This new paradigm introduces energy autonomy as a new challenge. The energy harvesting technology can capture the energy present in the cycling environment (e.g., kinetic or solar) to give this autonomy. The kinetic energy source is more stable and dense in this environment. There are several wheel kinetic harvesters on the market, ranging from low-complexity dynamos used to power bicycle lights to smart harvester systems that harvest kinetic energy while braking and cycling and store it for when it is needed to power sensors and other electronics loads. Perhaps the hub and the “bottle” dynamos are the most commercially successful systems because of their cost-effective design. Furthermore, the bottle generator is very inexpensive, yet it suffers from significant energy losses and is unreliable in wet weather due to mechanical friction and wheel slippage in the wheel/generator contact. This paper proposes a cost-effective bicycle harvester based on a novel kinetic-electromagnetic transducer. The proposed harvester allows for the generation and storage of harnessed kinetic energy to power low-power electronics loads when the user requires it (e.g., cell phone charging, lighting). The proposed harvester is made up of a power processing unit, a battery, and an optimized transducer based on a Halbach magnet array. An extensive full-wave electromagnetic simulation was used to evaluate the proposed transducer. Circuit simulation was also used to validate the proposed power unit. The proposed harvester generates a simulated output power of 1.17 W with a power processing unit efficiency of 45.6% under a constant bicycle velocity of 30 km/h.

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Energy Harvesting From Bicycle Vibrations

Cited by 6 publications

References 33 publications

Vibration Energy Harvesting by Means of Piezoelectric Patches: Application to Aircrafts

Vibration Energy Harvesting by Means of Piezoelectric Patches: Application to Aircrafts

Aerosol Doping System for Microscale Seamless p–n Patterning of Carbon Nanotube Films

A Bicycle-Embedded Electromagnetic Harvester for Providing Energy to Low-Power Electronic Devices

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