A micropump was developed for a fluidic system that requires fluid transport in the 100+ μL/min flow range. The constraints on the design included the ability to control the flow rate over a reasonable range of flow rates, operate at fairly high pressure loads, and non-contact of the working fluid with the pump actuation system. The design was based on a displacement style pump, actuated by a piezoelectric element, with one-way polymer membrane check valves. The valves provided essentially zero backflow based on the elastic character of the material. Results are presented for three membrane thicknesses, three valve opening diameters, over a range of operating frequencies. The flow rate versus frequency curves show a characteristic trend with three regions of operation, the first a linear region at low frequencies, the second a region of decreasing slope resulting in a maximum flow rate regime and the third a region of reduced flow rate with increasing frequency. Results also show that a suction lift could be overcome with the micropump whose value depends on the valve size. The performance is compared to an ideal case indicating that larger diameter valves with thinner membranes obtain the best performance.
Skip Nav Destination
ASME 3rd International Conference on Microchannels and Minichannels
June 13–15, 2005
Toronto, Ontario, Canada
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4185-5
PROCEEDINGS PAPER
Performance Characteristics of a Membrane Driven Variable Flow Rate Micro-Pump
Su-Young Jeong,
Su-Young Jeong
Oregon State University, Corvallis, OR
Search for other works by this author on:
Jonathan D. Thorud,
Jonathan D. Thorud
Oregon State University, Corvallis, OR
Search for other works by this author on:
Deborah V. Pence,
Deborah V. Pence
Oregon State University, Corvallis, OR
Search for other works by this author on:
James A. Liburdy
James A. Liburdy
Oregon State University, Corvallis, OR
Search for other works by this author on:
Su-Young Jeong
Oregon State University, Corvallis, OR
Jonathan D. Thorud
Oregon State University, Corvallis, OR
Deborah V. Pence
Oregon State University, Corvallis, OR
James A. Liburdy
Oregon State University, Corvallis, OR
Paper No:
ICMM2005-75208, pp. 281-286; 6 pages
Published Online:
November 11, 2008
Citation
Jeong, S, Thorud, JD, Pence, DV, & Liburdy, JA. "Performance Characteristics of a Membrane Driven Variable Flow Rate Micro-Pump." Proceedings of the ASME 3rd International Conference on Microchannels and Minichannels. ASME 3rd International Conference on Microchannels and Minichannels, Part B cont’d. Toronto, Ontario, Canada. June 13–15, 2005. pp. 281-286. ASME. https://doi.org/10.1115/ICMM2005-75208
Download citation file:
5
Views
Related Proceedings Papers
Related Articles
Simulation and Analysis of a Magnetoelastically Driven Micro-Pump
J. Fluids Eng (June,2001)
A MEMS-Based Drug Delivery Device With Integrated Microneedle Array—Design and Simulation
J Biomech Eng (August,2021)
Design and Performance of Small Scale Solar Powered Water Desalination Systems, Utilizing Reverse Osmosis
J. Sol. Energy Eng (November,2000)
Related Chapters
Introduction
Axial-Flow Compressors
Introduction
Design of Mechanical Bearings in Cardiac Assist Devices
Subsection NCA—General Requirements for Division 1 and Division 2
Companion Guide to the ASME Boiler & Pressure Vessel Codes, Volume 1 Sixth Edition