01698464

Component

https://doi.org/10.1177/0361198119830308

This study investigated the energy harvesting performance of a piezoelectric module in asphalt pavements through laboratory testing and multi-physics based simulation. The energy harvester module was assembled with layers of Bridge transducers and tested in the laboratory. A decoupled approach was used to study the interaction between the energy harvester and the surrounding pavement. The effects of embedment location, vehicle speed, and temperature on energy harvesting performance were investigated. The analysis findings indicate that the embedment location and vehicle speed affects the resulted power output of the piezoelectric energy harvesting system. The embedment depth of the energy module affects both the magnitude and frequency of stress pulse on top of the energy module induced by tire loading. On the other hand, higher vehicle speed causes greater loading frequency and thus greater power output; the effect of pavement temperature is negligible. The analysis of total power output before reaching fatigue failure of the energy module can be used to determine the optimum embedment location in the asphalt layer. The proposed energy harvesting system provides great potential to generate green energy from waste kinetic energy in roadway pavements. Field study is recommended to verify these findings with long-term performance monitoring of pavement with embedded energy harvesters.

The Standing Committee on Resource Conservation and Recovery (ADC60) peer-reviewed this paper (19-04997). © National Academy of Sciences: Transportation Research Board 2019.

19-04997

English

pp 115-124

2019-3

Transportation Research Record: Journal of the Transportation Research Board

Digital/other

Figures; References; Tables

Energy storage systems; Pavement performance; Pavements; Piezoelectricity; Sustainable development

Energy; Highways; Pavements

TRIS, TRB, ATRI

Mar 4 2019 10:42AM