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Paper FrD9.5

Hsu, Yi-Chu (Southern Taiwan University), Le, N. B. (Southern Taiwan University), Lin, M. S. (Southern Taiwan University), Jang, Ling-Sheng (Cheng-Kung University)

Optimum Design and Investigation on Diffuser Polymethylmethacrylate (PMMA) Peristaltic Micropumps

Scheduled for presentation during the Regular Sessions "Micro/Nano Robotics - IV" (FrD9), Friday, May 15, 2009, 16:50−17:10, Room: 501

2009 IEEE International Conference on Robotics and Automation, May 12 - 17, 2009, Kobe, Japan

This information is tentative and subject to change. Compiled on January 24, 2022

Keywords Life Sciences: Biotechnology, Pharmaceutical and Health Care, Dynamics, Product Design, Development and Prototyping

Abstract

Utilizing micro-electro-mechanical-systems (MEMS) techniques and a solvent-assisted bonding process, this study designs, optimizes and fabricates a new generation of diffuser peristaltic polymethylmethacrylate (PMMA) micropumps. The experimental results were validated by comparing with previous generation which had not been optimized the diffuser element. Specifically, the experimental results indicate that, with similar diffuser element inlet area (about 160000 m2), with and without optimized micropumps yield maximum flow rates of 246.4 μL/min and 194.8 μL/min, respectively. Furthermore, it is shown that the back pressure in the optimized micropump is 6.9 kPa, while that in the un-optimized pump is 5.69 kPa. The effect of diffuser element inlet cross-sectional area to pump flow rate and back pressure was investigate by comparing the experimental results of two design, one with 80 m 80 m and the other with 127 m 127 m cross-sectional area. The results indicated that, the design with larger inlet area gives higher flow rate. However, the rate of reduction in the maximum flow rate with increasing back-pressure increases at the higher inlet area design setting due to the greater pressure dissipation/loss associated with a larger channel cross-sectional area.

 

 

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