Feasible integration in asphalt of piezoelectric cymbals for vibration energy harvesting
| Autor: | Julio F. Fernández, A. Moure, A. Pérez-Lepe, M.A. Izquierdo Rodríguez, D. Urquiza Cuadros, Ana Gonzalo, S. Hernández Rueda, Fernando Rubio-Marcos |
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| Rok vydání: | 2016 |
| Předmět: |
Engineering
Test bench Renewable Energy Sustainability and the Environment Embedment business.industry 020209 energy Electric potential energy Energy Engineering and Power Technology Mechanical engineering 02 engineering and technology 021001 nanoscience & nanotechnology Piezoelectricity Vibration Fuel Technology Nuclear Energy and Engineering 0202 electrical engineering electronic engineering information engineering Energy transformation 0210 nano-technology business Energy harvesting Energy (signal processing) |
| Zdroj: | Energy Conversion and Management. 112:246-253 |
| ISSN: | 0196-8904 |
| DOI: | 10.1016/j.enconman.2016.01.030 |
| Popis: | Piezoelectric cymbals with 29-mm diameter and different configurations are fabricated and tested to determine the best conditions to optimize the conversion of mechanical to electric energy. Then, the ones with the best results are integrated directly in asphalt to evaluate their performance as vibration energy harvesters in roads, in a test bench designed to characterize these parameters. The main cymbal parameters and their integration in the asphalt are determined. For the first time, the electrical energy that can be obtained with the embedment of cymbals in asphalt is evaluated. Each single piezoceramic cymbal recovers up to 16 μW for the pass of one heavy vehicle wheel. An extrapolation of the energy transformed by the integrated cymbals in roads with high vehicle densities, such as in a peri-urban motorway, is approached. Energy densities in the range of 40–50 MW h/m2 can be obtained at 100 m of road (use of 30,000 cymbals), which could account for more than 65 MW h in a year. All this with a relatively low cost for an emerging technology (less than 2 €/kW h). The conversion of wasted and unused vibrational energy in roads by piezoelectric cymbals is thus proved as a real possibility of energy harvesting. |
| Databáze: | OpenAIRE |
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