Properties of Car-Embedded Vibrating Type Piezoelectric Harvesting System
| Autor: | Minsoo Kim, Dong-Hwan Lim, In-Sung Kim, Bo-Gun Koo, Soon-Jong Jeong, Dong-Jin Shin |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
energy harvesting
Technology Cantilever Materials science QH301-705.5 QC1-999 Acoustics resonance frequency power Energy transformation Cylinder block General Materials Science Biology (General) QD1-999 Instrumentation Fluid Flow and Transfer Processes Physics Process Chemistry and Technology automobile General Engineering Resonance Engineering (General). Civil engineering (General) Piezoelectricity Computer Science Applications Power (physics) piezoelectric generator Vibration Chemistry TA1-2040 Energy harvesting |
| Zdroj: | Applied Sciences, Vol 11, Iss 7449, p 7449 (2021) Applied Sciences Volume 11 Issue 16 |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11167449 |
| Popis: | We investigated the harvesting performance of a double piezoelectric generator, which was embedded into the engine block of a small passenger car. The resonance frequency is approximately between 37 and 52 Hz, where the cantilever showed maximum displacement. In reality, the cantilever has a vibrating characteristic, which dramatically reduces displacement, even when the operating frequency deviates slightly from the resonance frequency. To acquire a large mechanical energy-to-electrical energy conversion, a multiple-piezoelectric generator was employed to absorb the energy even when the vibration switched from a resonance to a non-resonance frequency. In this study, a variable mass box was designed and installed in the engine block of a car. The variable mass box consisted of the serial connection of two masses with different weights. The operating frequency deviated from a resonance to a non-resonance frequency within a few hertz (3~4 Hz) the reduction in vibration was lower, leading to a significant acquisition of the resulting power. This is due to the variable matching of the generator, realized by the action of dual mass. This type of generator was installed in the engine block and produced up to 0.038 and 0.357 mW when the engine was operating at 2200 and 3200 rpm, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|