Performance evaluation of twin piezoelectric wind energy harvesters under mutual interference

被引：132

作者：

Hu, Gang ^{[1
]}

Wang, Junlei ^{[2
]}

Su, Zhen ^{[2
]}

Li, Guoping ^{[2
]}

Peng, Huayi ^{[3
]}

Kwok, K. C. S. ^{[1
]}

机构：

[1] Univ Sydney, Sch Civil Engn, Ctr Wind Waves & Water, Sydney, NSW 2006, Australia

[2] Zhengzhou Univ, Sch Chem Engn & Energy, Zhengzhou 450000, Henan, Peoples R China

[3] Harbin Inst Technol, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2019年 / 115卷 / 07期

基金：

中国国家自然科学基金;

关键词：

EFFICIENCY;

D O I：

10.1063/1.5109457

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This study evaluated the performance of twin adjacent galloping-based piezoelectric wind energy harvesters based on mutual interference. The relative position between the twin harvesters is crucial to their energy generation efficiency. A series of wind tunnel tests were conducted to test energy generation of the two harvesters in tandem or staggered arrangements. The optimal relative position, a streamwise center to center spacing of 1.2B (B is the width of the harvester's square prism) and a transverse center to center spacing of 1.0B, was identified. The total output power of the two harvesters placed in the optimal relative position is up to 2.2 times that of two isolated harvesters. The output power is also much larger than that of the harvesters in tandem arrangements that have been widely tested in previous studies. Therefore, it is recommended to position two adjacent harvesters in optimal relative position(s) to deliver an optimal power output.

引用

页数：4

共 30 条

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