Development and performance comparison of valveless piezoelectric pumps with asymmetrical channels

被引：23

作者：

Huang, Jun ^{[1
]}

Zou, Lei ^{[1
]}

Li, Zhongjie ^{[2
]}

Wang, Xu ^{[3
]}

Zhang, Quan ^{[2
]}

Wang, Yuan ^{[4
]}

机构：

[1] Jiangsu Univ, Res Ctr Fluid Machinery Engn & Technol, Zhenjiang, Jiangsu, Peoples R China

[2] Shanghai Univ, Sch Mechatron Engn & Automat, Shanghai, Peoples R China

[3] Nanjing Forestry Univ, Coll Mech & Elect Engn, Nanjing, Peoples R China

[4] Army Engn Univ PLA, Coll Commun Engn, Nanjing, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2020年 / 314卷

基金：

上海市自然科学基金; 中国国家自然科学基金;

关键词：

Valveless; Piezoelectric pump; Y-shaped tube; Asymmetrical structure; MICROCHANNEL HEAT SINK; EXPERIMENTAL-VERIFICATION; FLOW; MICROPUMP; FABRICATION; DESIGN;

D O I：

10.1016/j.sna.2020.112241

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The piezoelectric pumps are the power source of piezoelectric water cooling systems, and the output performances of the piezoelectric pump determine the overall characteristics of the water cooling system. In order to improve the output effectiveness of the valveless piezoelectric pump, a valveless piezoelectric pump with asymmetrical structures is proposed by combining a diffuser/nozzle and Y-shaped tubes. The proposed hybrid structure not only retains the heat transfer advantages of the large-area watershed of the Y-shaped tube, but also maintains the characteristics of the unequal flow resistance which can achieve one-way flow. The flow rate equation of the valveless piezoelectric pump is developed, and the parameter eta', which is adopted to describe the output performance of the valveless piezoelectric pump, is also investigated. The internal flow fields of the valveless piezoelectric pump are compared and analyzed through the finite element method, and the prototypes of the valveless piezoelectric pumps with different structures are experimentally studied. The results demonstrate that the output performance of the valveless piezoelectric pump with asymmetrical structures is superior to those of the piezoelectric pumps with symmetrical structures. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：11

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