Micronozzle/diffuser flow and its application in micro valveless pumps

Jiang, Xiaoning; Zhou, Zhaoying; Huang, Xiaoyang; Li, Yang; Yang, Yiping; Liu, C.Y.

doi:10.1016/s0924-4247(98)00115-0

Cited by 116 publications

(72 citation statements)

References 5 publications

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“…These include piezoelectrically actuated [11], electromagnetically actuated [14], and bubble micropumps [ 15]. Use of nozzle-diffuser elements in magnetohydrodynamic micropumps has also been reported [16].…”

Section: Introductionmentioning

confidence: 99%

Low Reynolds number flow through nozzle-diffuser elements in valveless micropumps

Singhal

Garimella

Murthy

2004

Sensors and Actuators A: Physical

124

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Section: Introductionmentioning

confidence: 99%

Low Reynolds number flow through nozzle-diffuser elements in valveless micropumps

Singhal

Garimella

Murthy

2004

Sensors and Actuators A: Physical

124

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“…Region3 During one actuation period T, the average volume output flow rate (Q) of the pump can be expressed as [5]:…”

Section: Fig 1 Sem Of Micro Diffuser/nozzle With Flat Wall � the Difmentioning

confidence: 99%

A Micro Diffuser/Nozzle Pump with Fins on the Sidewall

Zhang

et al. 2007

TRANSDUCERS 2007 - 2007 International Solid-State Sensors, Actuators and Microsystems Conference

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“…In an attempt to resolve these problems, researchers have proposed a variety of valveless peristaltic micro pump schemes [5,6], or reciprocating diaphragm pumps, integrated with nozzles/diffusers [7][8][9][10][11]. Such systems are generally fabricated on a substrate, using MEMS techniques, and are not intended to provide a high flow rate in a closed system with flow resistance.…”

Section: Introductionmentioning

confidence: 99%

Application of a Valveless Impedance Pump in a Liquid Cooling System

Wen

Yeh

Leong

et al. 2013

IEEE Trans. Compon., Packag. Manufact. Technol.

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In this study, a novel valveless impedance pump is applied, for the first time, in the thermal management of high performance electronic systems. This small pump comprises an amber latex rubber tube, connected at both ends to rigid copper tubes of different acoustic impedance, and a simple, economic, quiet and energy-efficient actuation mechanism, which combines a small DC motor and a cam. The motor activated cam periodically compresses the elastic tube at a position asymmetric from the tube ends.Traveling waves, emitted from the compression, combine with reflected waves, at the impedance-mismatched positions (rubber tube/copper tube interfaces). The resulting wave interference creates a pressure gradient, with the potential to generate a net flow. Several experimental set-ups for performance tests, using a single impedance pump, open system, with isothermal flow, and a closed liquid cooling system were designed and implemented.The performance of the impedance pump was affected significantly by the actuation This is the Pre-Published Version.

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Micronozzle/diffuser flow and its application in micro valveless pumps

Cited by 116 publications

References 5 publications

Low Reynolds number flow through nozzle-diffuser elements in valveless micropumps

Low Reynolds number flow through nozzle-diffuser elements in valveless micropumps

A Micro Diffuser/Nozzle Pump with Fins on the Sidewall

Application of a Valveless Impedance Pump in a Liquid Cooling System

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