Bidirectional flow micropump based on dynamic rectification
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Elsevier B.V.
2014
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my.unimap-329052014-03-20T04:54:14Z Bidirectional flow micropump based on dynamic rectification Pei, Song Chee Ruzairi, Abdul Rahim, Prof. Dr. Rashidah @ Siti Saedah, Arsat, Dr. Uda, Hashim, Prof. Dr. Loew, Pei Ling, Dr. pschee2@live.utm.my ruzairi@fke.utm.my rashidah@fke.utm.my uda@unimap.edu.my leowpl@fke.utm.my Bi-directional micropumps Dynamic structure valve Electromagnetic actuation Numerical simulation Link to publisher's homepage at http://www.elsevier.com This paper proposes a new bidirectional pumping principle based on a dynamic rectification mechanism. The pump is composed of a moveable actuation platform and a gourd-shaped chamber, whose role is to behave as both a rectification and a pumping structure. An asymmetrically deflected membrane induces a differential pressure across the chamber and thus generates a pumping effect. The stream flow field inside the chamber was verified by numerical simulations. Furthermore, the feasibility of the pump was examined by developing a poly-dimethylsiloxane (PDMS)-based prototype using micro-electromechanical (MEMS) fabrication technology. Because the pumping performance is directional, the micropump characteristics were evaluated at different actuation points along the membrane. In addition, the operating performance was assessed over a range of low driving frequencies (1-10 Hz, in 1 Hz increments) and over a nominal frequency ranges (5-55 Hz, in 5 Hz increments). The proposed micropump exhibits maximum flow rates of 1.52 ml/min in the forward direction and 1.48 ml/min in the reverse direction, with resonance frequencies of 15 Hz and 20 Hz, respectively. The presented pump offers advantage in future disposable microfluidics applications due to its bi-directional properties, low fabrication cost and modular architecture. 2014-03-20T04:54:13Z 2014-03-20T04:54:13Z 2013 Article Sensors and Actuators, A: Physical, vol. 204, 2013, pages 107-113 0924-4247 http://www.sciencedirect.com/science/article/pii/S0924424713004822 http://dspace.unimap.edu.my:80/dspace/handle/123456789/32905 en Elsevier B.V. |
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English |
| topic |
Bi-directional micropumps Dynamic structure valve Electromagnetic actuation Numerical simulation |
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Bi-directional micropumps Dynamic structure valve Electromagnetic actuation Numerical simulation Pei, Song Chee Ruzairi, Abdul Rahim, Prof. Dr. Rashidah @ Siti Saedah, Arsat, Dr. Uda, Hashim, Prof. Dr. Loew, Pei Ling, Dr. Bidirectional flow micropump based on dynamic rectification |
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Link to publisher's homepage at http://www.elsevier.com |
| author2 |
pschee2@live.utm.my |
| author_facet |
pschee2@live.utm.my Pei, Song Chee Ruzairi, Abdul Rahim, Prof. Dr. Rashidah @ Siti Saedah, Arsat, Dr. Uda, Hashim, Prof. Dr. Loew, Pei Ling, Dr. |
| format |
Article |
| author |
Pei, Song Chee Ruzairi, Abdul Rahim, Prof. Dr. Rashidah @ Siti Saedah, Arsat, Dr. Uda, Hashim, Prof. Dr. Loew, Pei Ling, Dr. |
| author_sort |
Pei, Song Chee |
| title |
Bidirectional flow micropump based on dynamic rectification |
| title_short |
Bidirectional flow micropump based on dynamic rectification |
| title_full |
Bidirectional flow micropump based on dynamic rectification |
| title_fullStr |
Bidirectional flow micropump based on dynamic rectification |
| title_full_unstemmed |
Bidirectional flow micropump based on dynamic rectification |
| title_sort |
bidirectional flow micropump based on dynamic rectification |
| publisher |
Elsevier B.V. |
| publishDate |
2014 |
| url |
http://dspace.unimap.edu.my:80/dspace/handle/123456789/32905 |
| _version_ |
1643797026907881472 |
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13.222552 |