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Sensors 2009, 9(5), 3666-3678; doi:10.3390/s90503666
Article

Optimal Design and Operation for a No-Moving-Parts-Valve (NMPV) Micro-Pump with a Diffuser Width of 500 µm

1,* , 2
 and 2
Received: 28 March 2009; in revised form: 28 April 2009 / Accepted: 15 May 2009 / Published: 15 May 2009
(This article belongs to the Section Physical Sensors)
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Abstract: A no-moving-parts-valve (NMPV) with a diffuser width of D = 500 microns was investigated in this study by numerical simulations at Reynolds numbers, ReD, ranging from 20 to 75, and expansion valve angles ranging from 30° < θ1 < 57° and 110° < θ2 < 120°. The D p,i value, 1.02 < D p,i < 1.14, is larger within the proposed range of the expansion valve angles. A flow channel structure with a depth of 500 micron is manufactured using yellow light lithography in this study. From prior analyses and experiments, it is found that piezoelectric films work better at a buzz driving frequency of f < 30Hz and the best operating frequency is at a driving frequency of f = 10Hz because it produces the largest net flow. In addition, the expansion angles θ1 = 30° and θ2 = 120° are the best expansion angles because they produce the largest net flow. These related results are very helpful for the actual design of no-moving-parts-valve micro-pump.
Keywords: no-moving-parts-valve (NMPV); expansion valve angle; net flow no-moving-parts-valve (NMPV); expansion valve angle; net flow
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Wang, C.-T.; Leu, T.-S.; Sun, J.-M. Optimal Design and Operation for a No-Moving-Parts-Valve (NMPV) Micro-Pump with a Diffuser Width of 500 µm. Sensors 2009, 9, 3666-3678.

AMA Style

Wang C-T, Leu T-S, Sun J-M. Optimal Design and Operation for a No-Moving-Parts-Valve (NMPV) Micro-Pump with a Diffuser Width of 500 µm. Sensors. 2009; 9(5):3666-3678.

Chicago/Turabian Style

Wang, Chin-Tsan; Leu, Tzong-Shyng; Sun, Jia-Ming. 2009. "Optimal Design and Operation for a No-Moving-Parts-Valve (NMPV) Micro-Pump with a Diffuser Width of 500 µm." Sensors 9, no. 5: 3666-3678.


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