A novel road energy harvesting system based on a spatial double V-shaped mechanism for near-zero-energy toll stations on expressways

Sun, Mengdie; Wang, Wei; Zheng, Pengwu; Luo, Dabing; Zhang, Zutao

doi:10.1016/j.sna.2021.112648

Cited by 31 publications

(6 citation statements)

References 32 publications

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“…Similarly to the work [ 21 ] published in 2018, the authors give the impulse peak power of the prototype at the level of several dozen watts. Analogous as before based on the articles published in 2012–2021 [ 19–23 ] and other analyzed publications, it was estimated that in typical electromagnetic systems the range of energy obtainable from a single system is 20–2000 mJ per single‐vehicle pass.…”

Section: Systems Of Harvesting Energy Directly From Vehiclesmentioning

confidence: 76%

“…In prototype tests, the power was 3 mW. The article [ 23 ] published in 2021 is in its formal structure very similar to the work published in 2018. [ 21 ] A system using speed bumps and a complex mechanical gear transforming the vertical reciprocating motion into unidirectional rotary motion of the generator is presented here.…”

Section: Systems Of Harvesting Energy Directly From Vehiclesmentioning

confidence: 86%

“…Electromagnetic systems 20-2000 mJ/single vehicle pass [19][20][21][22][23] 27.7% Solar energy Photovoltaic systems 2.5-250 W m À2 [1][2][3]5,6,25] 17.3%…”

Section: Road Energy Harvesting Methodsmentioning

confidence: 99%

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Essential Assessment of Last‐Decade Progress in Road Energy Harvesting Systems

Ligęza

2023

Energy Tech

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An important contemporary challenge regarding sustainable development is the analysis of the possibilities of obtaining and recovering energy, also from unconventional areas. One such issue harvests energy from roads. This idea seems to be so attractive that numerous scientific teams around the world conduct research in this area. The author's systematic analysis of review articles from the last decade raises the question, whether harvesting energy from roads is really as attractive and promising as many researchers predict in their publications. The author hypothesizes that in last decade basically no significant progress has been made in the development and improvement of energy harvesting from roads methods and systems. In many cases, the solutions presented are more technical than scientific novelties. Known solutions are modeled and tested again and again, the systems are complex and expensive, and the energy and economic efficiency is relatively low. In this article, the author focuses on critically revealing the flaws, shortcomings, weaknesses, and erroneous assumptions of large part studies conducted in this field. Based on the criticism, it is aimed to indicate prospective directions of development and encourage researchers to look for innovative, effective solutions in the field of energy harvesting from roads.

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Section: Systems Of Harvesting Energy Directly From Vehiclesmentioning

confidence: 76%

Section: Systems Of Harvesting Energy Directly From Vehiclesmentioning

confidence: 86%

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Essential Assessment of Last‐Decade Progress in Road Energy Harvesting Systems

Ligęza

2023

Energy Tech

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“…This makes it possible to create zero‐energy toll stations, whether they are needed for distant locations or to transform existing toll booths. China's primary source of energy production is still thermal power, [ 39 ] which will pollute the environment and eat up nonrenewable resources. Zero‐energy toll booths will not use the grid at all; only renewable energy will be used.…”

Section: Resultsmentioning

confidence: 99%

“…Hybrid evolutionary methods were used to optimize the linear generator, and tests were conducted to verify the suggested design. To generate electricity for highway toll booths, Sun et al [ 39 ] designed a V‐shaped device that makes use of speed bumps. The average efficiency, according to the bench tests, might be as high as 59.42%.…”

Section: Introductionmentioning

confidence: 99%

A High‐Voltage Mechanical Energy Harvester Using Crank‐Shaft Mechanism for Applications in Toll Stations on Expressways

Bano,

Kong,

et al. 2024

Energy Tech

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Due to the continuous increase of expressways and toll stations, there is a high potential for energy harvesting for sideway electronic devices. This article proposes a novel road energy harvester (REH) based on a crank‐shaft mechanism using bidirectional to unidirectional phenomenon to be installed on expressway toll stations. The REH contains four main components: the oscillation input from the suspension, the transfer unit, the generator unit, and the energy storage unit. The REH uses a crank‐shaft with spur gears as a mechanical motion rectifier and one‐way bearings, which can convert the oscillatory vibration into unidirectional generator rotation. In the energy storage module, electrical energy is being stored in supercapacitors. This study covers the design, modeling, and simulation of a crank‐shaft‐based energy harvester for harvesting suspension vibration energy. The energy harvester's dynamic modeling is used to assess the damping features. Simulated tests are conducted to demonstrate the proposed energy harvester's efficacy. Experiments are conducted, and the highest output voltage of 6.9 V peak is recorded for 5 mm/s with an efficiency of 53.66% which is enough for self‐powered applications at expressway toll booths such as traffic lights, caution lights, LED displays, sensors, etc.

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