Uniform stress distribution road piezoelectric generator with free-fixed-end type central strike mechanism

Hong, S.D.; Ahn, J.H.; Kim, K.-B.; Kim, J.H.; Cho, J.Y.; Woo, M.S.; Song, Y.; Hwang, W.; Jeon, D.H.; Kim, J.; Jeong, S.Y.; 우상범; Ryu, C.H.; Song, Y.; Sung, T.H.

doi:10.1016/j.energy.2021.121812

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Uniform stress distribution road piezoelectric generator with free-fixed-end type central strike mechanism

Hong, S.D.;
Ahn, J.H.;
Kim, K.-B.;
Kim, J.H.;
Cho, J.Y.;
외 10명

Citations

SCOPUS

34

초록

A self-powered energy harvester for real roads to predict and detect black ice formation and pinpoint dangerous road sections was developed. An open-type piezoelectric device was developed for a high-efficiency module to achieve uniform stress distribution for enhanced energy harvesting performance by free-fixed-end type central strike mechanism. The output performance of the open-type device was 80% higher than that of the closed-type device. A uniform stress distribution road piezoelectric generator (URPG) with 120 open-type devices was installed on real roads. The URPG showed output power performance of up to 2.38 mW/cm3 when a vehicle passed once under the condition of being buried 2.5 cm below the road surface. The URPG can operate a wireless temperature sensor monitoring system for 83 s and charge a cellphone battery for 53 s. The developed self-powered energy harvesters can be used to reduce accidents caused by black ice on real roads. © 2021 Elsevier Ltd

키워드

Black ice; Free fixed end; Pavement technology; Real road; Road-capable piezoelectric energy harvester; Uniform stress distribution structure; Electric generators; Energy harvesting; Piezoelectric transducers; Roads and streets; Black ice; Fixed ends; Free fixed end; Pavement technology; Piezoelectric energy harvesters; Piezoelectric generators; Real roads; Road-capable piezoelectric energy harvester; Uniform stress distribution structure; Uniform stress distributions; Piezoelectricity; accident prevention; energy storage; monitoring system; piezoelectricity; road; road construction; Miletinae

제목: Uniform stress distribution road piezoelectric generator with free-fixed-end type central strike mechanism

저자: Hong, S.D.; Ahn, J.H.; Kim, K.-B.; Kim, J.H.; Cho, J.Y.; Woo, M.S.; Song, Y.; Hwang, W.; Jeon, D.H.; Kim, J.; Jeong, S.Y.; 우상범; Ryu, C.H.; Song, Y.; Sung, T.H.

DOI: 10.1016/j.energy.2021.121812

발행일: 2022-01

유형: Article

저널명: Energy

권: 239

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