Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Design and Electrical Properties of Piezoelectric Energy Harvester for Roadway

도로용 압전발전발판 설계 및 발전특성 평가

  • Kim, Chang-Il (Optic & Electronic Ceramics Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Lee, Joo-Hee (Optic & Electronic Ceramics Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Kim, Kyung-Bum (Optic & Electronic Ceramics Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Jeong, Young-Hun (Optic & Electronic Ceramics Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Cho, Jeong-Ho (Optic & Electronic Ceramics Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Paik, Jong-Hoo (Optic & Electronic Ceramics Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Lee, Young-Jin (Optic & Electronic Ceramics Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Nahm, Sahn (Department of Materials Science and Engineering, Korea University)
  • 김창일 (한국세라믹기술원 광.전자세라믹본부) ;
  • 이주희 (한국세라믹기술원 광.전자세라믹본부) ;
  • 김경범 (한국세라믹기술원 광.전자세라믹본부) ;
  • 정영훈 (한국세라믹기술원 광.전자세라믹본부) ;
  • 조정호 (한국세라믹기술원 광.전자세라믹본부) ;
  • 백종후 (한국세라믹기술원 광.전자세라믹본부) ;
  • 이영진 (한국세라믹기술원 광.전자세라믹본부) ;
  • 남산 (고려대학교 신소재공학과)
  • Received : 2011.05.09
  • Accepted : 2011.06.17
  • Published : 2011.07.01
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Abstract

Piezoelectric energy harvester (PEH) as a box type was fabricated in order to harvest mechanical energy imparted to roadways from passing vehicles and convert it into electricity. The PEH was composed of 72 piezoelectric cantilevers with 9 springs with elasticity stick to a bottom of the PEH. For the single piezoelectric cantilever, when a single push with approximately 5 mm displacement was incident to it, power of 0.355 mW was produced at $100\;k{\Omega}$. It is found that the power from the single piezoelectric cantilever increases when spring constant is high. We investigated power of PEH when the moving vehicle passes in it. Power was increased with increasing vehicle speed. When vehicle speed is 30 km/h, power is 20.6 mW.

Keywords

References

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