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

被引：19

作者：

Do Hong, Seong ^{[1
]}

Ahn, Jung Hwan ^{[2
]}

Kim, Kyung-Bum ^{[1
]}

Kim, Jeong Hun ^{[1
]}

Cho, Jae Yong ^{[2
]}

Woo, Min Sik ^{[1
]}

Song, Yewon ^{[1
]}

Hwang, Wonseop ^{[1
]}

Jeon, Deok Hwan ^{[1
]}

Kim, Jihoon ^{[3
]}

Jeong, Se Yeong ^{[1
]}

Woo, Sang Bum ^{[1
]}

Ryu, Chul Hee ^{[1
]}

Song, Yooseob ^{[4
]}

Sung, Tae Hyun ^{[1
]}

机构：

[1] Hanyang Univ, Dept Elect Engn, Seoul 133791, South Korea

[2] Korea Elect Power Res Inst, 105 Munji Ro, Daejeon, South Korea

[3] Hanyang Univ, Dept Automot Engn, Seoul 133791, South Korea

[4] Univ Texas Rio Grande Valley, Dept Civil Engn, Edinburg, TX 78539 USA

来源：

ENERGY | 2022年 / 239卷

关键词：

Road-capable piezoelectric energy harvester; Uniform stress distribution structure; Free fixed end; Pavement technology; Real road; Black ice;

D O I：

10.1016/j.energy.2021.121812

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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 per-formance of up to 2.38 mW/cm(3) 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. (C) 2021 Elsevier Ltd. All rights reserved.

引用

页数：11

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