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Research Papers: Flows in Complex Systems

Characterization of a Commercial Synthetic Jet Actuator for Air Quality Applications

[+] Author and Article Information
Miles Abarr

Department of Mechanical Engineering,
University of Colorado Boulder,
ECME 220, UCB 427,
Boulder, CO 80309-0427
e-mail: Miles.Abarr@colorado.edu

Denise Mauney

Department of Civil, Environmental
and Architectural Engineering,
University of Colorado Boulder,
ECOT 441, UCB 428,
Boulder, CO 80309-0428
e-mail: Denise.Mauney@colorado.edu

Jean Hertzberg

Department of Mechanical Engineering,
University of Colorado Boulder,
ECME 220, UCB 427,
Boulder, CO 80309-0427
e-mail: Jean.Hertzberg@colorado.edu

Lupita D. Montoya

Department of Civil, Environmental
and Architectural Engineering,
University of Colorado Boulder,
ECOT 441, UCB 428,
Boulder, CO 80309-0428
e-mail: Lupita.Montoya@colorado.edu

1Corresponding author.

Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received September 13, 2016; final manuscript received January 23, 2017; published online April 24, 2017. Assoc. Editor: Riccardo Mereu.

J. Fluids Eng 139(7), 071103 (Apr 24, 2017) (7 pages) Paper No: FE-16-1601; doi: 10.1115/1.4035948 History: Received September 13, 2016; Revised January 23, 2017

In this study, a commercial electromagnetic synthetic jet actuator (SJA) was characterized to determine its flow patterns and sphere of influence within a room. Its axisymmetry was also evaluated. The objective of this research is to explore the potential application of this commercial SJA for indoor air quality (IAQ) control and its limitations for such application. A small fan of similar size was also partially characterized. Results showed that the SJA is axisymmetric, and it uses a small power input to impact the airflow over 1 m from the jet exit. Further, while the SJA showed less flow output than the fan in this study, it had significantly greater dynamic pressure per unit power. This feature could be potentially useful for indoor air quality control applications.

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Figures

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Fig. 1

Basic schematic of a SJA: (a) with deflecting membrane at rest, (b) pulling air in, and (c) imparting a net momentum to the flow

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Fig. 2

Three-dimensional (3D) computer-aided design (CAD) of Nuventix SynJet Zflow 87 LED Cooler

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Fig. 3

Three-dimensional CAD of axial fan

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Fig. 4

Schematic of the experimental setup

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Fig. 5

Y and z velocity profiles for SJA at x/D = 1.5

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Fig. 6

Y and z velocity profiles for SJA at x/D = 7.4

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Fig. 7

Y and z velocity profiles for fan at x/D = 2.6

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Fig. 8

(a) SJA two-dimensional velocity profile evolution at varying x/D distances and (b) SJA 3D velocity profile evolution at varying x/D distances

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Fig. 9

Fan velocity profiles at x/D = 2.6 and x/D = 7.6

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Fig. 10

SJA and fan normalized peak velocity measured at various distances from the device exit (x direction)

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Fig. 11

SJA flow properties at various distances from the SJA exit (x direction)

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