In this paper, a centrifugal micropump was designed, fabricated and characterized. The proposed micropump is able to provide a 1.4L/min flow rate and a 75KPa pressure head at 24000 rpm with an oversize of 46mm wide and 69mm long. The hydrodynamic components were designed based on partial emission pump. Meanwhile, the geometric profiles of both impeller and volute were simplified for manufacturing. A computational fluid dynamics (CFD) analysis was performed to predict the effects of blade inlet angle and vane number on hydraulic performance. Experiments were conducted at 4 different rotational speeds to validate the numerical results. The results showed that the numerical simulation has a high accuracy to predict the micropump flow field with the overall average deviation less than 3%. As expected, the micropump prototype performed obvious partial emission pump features. In terms of the external characteristic, the pressure head at a given rotational speed decreased little with flow rate increasing. While, in the flow field, complex secondary flow was significant in the impeller passage, due to the joint action of the blade tip clearance leakage and axial vortex. Regression analysis and statistical evaluation showed that the flow nondimensional coefficients at different rotational speeds correlated well, indicating that classical similarity rules was still applicable to this micropump.
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ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems collocated with the ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels
July 6–9, 2015
San Francisco, California, USA
Conference Sponsors:
- Electronic and Photonic Packaging Division
ISBN:
978-0-7918-5688-8
PROCEEDINGS PAPER
Design, Fabrication and Characterization of a Mechanical Micropump
Bin Duan,
Bin Duan
Huazhong University of Science and Technology, Wuhan, China
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Tinghui Guo,
Tinghui Guo
Huazhong University of Science and Technology, Wuhan, China
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Minqing Luo,
Minqing Luo
Huazhong University of Science and Technology, Wuhan, China
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Xiaobing Luo
Xiaobing Luo
Huazhong University of Science and Technology, Wuhan, China
Search for other works by this author on:
Bin Duan
Huazhong University of Science and Technology, Wuhan, China
Tinghui Guo
Huazhong University of Science and Technology, Wuhan, China
Minqing Luo
Huazhong University of Science and Technology, Wuhan, China
Xiaobing Luo
Huazhong University of Science and Technology, Wuhan, China
Paper No:
IPACK2015-48017, V001T09A048; 9 pages
Published Online:
November 19, 2015
Citation
Duan, B, Guo, T, Luo, M, & Luo, X. "Design, Fabrication and Characterization of a Mechanical Micropump." Proceedings of the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems collocated with the ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels. Volume 1: Thermal Management. San Francisco, California, USA. July 6–9, 2015. V001T09A048. ASME. https://doi.org/10.1115/IPACK2015-48017
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