Abstract
Recent research efforts show that piezoelectric polymers such as PVDF are competitive alternatives to the conventional piezoelectric ceramics. While possessing extraordinary toughness and fatigue resistance, however, piezoelectric polymers suffer from limited applications due to a large amount of deformation required for high power output. Here, we design and demonstrate a PVDF-based, high-power piezoelectric module installed on a local highway, for the first time. The module contains a bridge-type displacement amplification capability, demonstrating the 2.5 mm vertical displacement converted into 13 mm horizontal deformation, suitable for the uninterrupted driving experience. We provide the design guidelines and optimization strategies for the module, in terms of the piezoelectric power output. With 80 bimorph-shaped energy harvesters, the module achieves up to 16.5 W/m2 energy density when the test vehicle passes by at 80 km/h. The matching impedance decreases with vehicle speed, suggesting that different matching impedance should be used for highway and local roadways. The output power exhibits a linear relation to the vehicle speed and weight, implying the module's potential application as a self-powered speed sensor. The study demonstrates that PVDF-based energy harvesters provide a competitive power output at small vertical displacements with relevant module design, making the tough piezoelectric materials suitable for efficient and durable roadway energy harvesting.
| Original language | English |
|---|---|
| Pages (from-to) | 741-750 |
| Number of pages | 10 |
| Journal | Applied Energy |
| Volume | 216 |
| DOIs | |
| Publication status | Published - 2018 Apr 15 |
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Keywords
- Displacement amplification
- On-site installation study
- Piezoelectricpolymers
- PVDF
- Roadway energy harvesting
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Energy(all)
- Mechanical Engineering
- Management, Monitoring, Policy and Law
Cite this
Piezoelectric polymer-based roadway energy harvesting via displacement amplification module. / Shin, Youn Hwan; Jung, Inki; Noh, Myoung Sub; Kim, Jeong Hun; Choi, Ji Young; Kim, Sangtae; Kang, Chong-Yun.
In: Applied Energy, Vol. 216, 15.04.2018, p. 741-750.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Piezoelectric polymer-based roadway energy harvesting via displacement amplification module
AU - Shin, Youn Hwan
AU - Jung, Inki
AU - Noh, Myoung Sub
AU - Kim, Jeong Hun
AU - Choi, Ji Young
AU - Kim, Sangtae
AU - Kang, Chong-Yun
PY - 2018/4/15
Y1 - 2018/4/15
N2 - Recent research efforts show that piezoelectric polymers such as PVDF are competitive alternatives to the conventional piezoelectric ceramics. While possessing extraordinary toughness and fatigue resistance, however, piezoelectric polymers suffer from limited applications due to a large amount of deformation required for high power output. Here, we design and demonstrate a PVDF-based, high-power piezoelectric module installed on a local highway, for the first time. The module contains a bridge-type displacement amplification capability, demonstrating the 2.5 mm vertical displacement converted into 13 mm horizontal deformation, suitable for the uninterrupted driving experience. We provide the design guidelines and optimization strategies for the module, in terms of the piezoelectric power output. With 80 bimorph-shaped energy harvesters, the module achieves up to 16.5 W/m2 energy density when the test vehicle passes by at 80 km/h. The matching impedance decreases with vehicle speed, suggesting that different matching impedance should be used for highway and local roadways. The output power exhibits a linear relation to the vehicle speed and weight, implying the module's potential application as a self-powered speed sensor. The study demonstrates that PVDF-based energy harvesters provide a competitive power output at small vertical displacements with relevant module design, making the tough piezoelectric materials suitable for efficient and durable roadway energy harvesting.
AB - Recent research efforts show that piezoelectric polymers such as PVDF are competitive alternatives to the conventional piezoelectric ceramics. While possessing extraordinary toughness and fatigue resistance, however, piezoelectric polymers suffer from limited applications due to a large amount of deformation required for high power output. Here, we design and demonstrate a PVDF-based, high-power piezoelectric module installed on a local highway, for the first time. The module contains a bridge-type displacement amplification capability, demonstrating the 2.5 mm vertical displacement converted into 13 mm horizontal deformation, suitable for the uninterrupted driving experience. We provide the design guidelines and optimization strategies for the module, in terms of the piezoelectric power output. With 80 bimorph-shaped energy harvesters, the module achieves up to 16.5 W/m2 energy density when the test vehicle passes by at 80 km/h. The matching impedance decreases with vehicle speed, suggesting that different matching impedance should be used for highway and local roadways. The output power exhibits a linear relation to the vehicle speed and weight, implying the module's potential application as a self-powered speed sensor. The study demonstrates that PVDF-based energy harvesters provide a competitive power output at small vertical displacements with relevant module design, making the tough piezoelectric materials suitable for efficient and durable roadway energy harvesting.
KW - Displacement amplification
KW - On-site installation study
KW - Piezoelectricpolymers
KW - PVDF
KW - Roadway energy harvesting
UR - http://www.scopus.com/inward/record.url?scp=85042848373&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85042848373&partnerID=8YFLogxK
U2 - 10.1016/j.apenergy.2018.02.074
DO - 10.1016/j.apenergy.2018.02.074
M3 - Article
AN - SCOPUS:85042848373
VL - 216
SP - 741
EP - 750
JO - Applied Energy
JF - Applied Energy
SN - 0306-2619
ER -