A Multi-resonances Valveless Micropump with High Fluid Transportation Efficiency
Poster Mar 17, 2015

Ming-Che Hsieh, Min-Fan Huang, and An-Bang Wang
Valveless pumping[1] is an ideal and biomimetic way of fluid transportation due to its simplicity and absence of moving elements which may cause fatigue problems. However, the issue of low efficiency makes against many microfluidic applications. In this research, the concept of multiple resonances was proposed to deal with the problem. The elastic chambers of intendedly-designed stiffness were equipped at inlet/outlet of valveless micropump. The second resonance is successfully induced for the enhancement of efficiency of fluid transportation by the interaction of fluid and structure with elastic boundary. The experiments showed that the size of elastic chamber had great effects on the operating frequency range and net flow rate. As Rb/Ra=1.2 (Ra: radius of actuating chamber; Rb: radius of and inlet/outlet chamber), the maximum net flow rate is 15 times larger than the model of Rb/Ra=0.12. Besides, a theoretical model relied on “Electric-Hydraulic-Analogy”[2] was proposed to effectively predict the dynamic behavior of the system. In conclusion, the novel concept of multiple resonances greatly enhances the applicability of valveless pumping, and the characteristic of multi-resonances micropump can be instantly and precisely estimated via the proposed model.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

OTHER POSTERS
The immune system is a striking example of an integrated information system, engaged in coordinated host-protective activities. Organs-on-chip approach (OOC) models allow the direct simultaneous observation of hundreds of different cells, moving, interacting and responding to signals coming from the microenvironment nearby, that give access to a number of parameters describing the system that must be properly measured and elaborated.
READ MORELike what you just read? You can find similar content on the communities below.
Drug DiscoveryTo personalize the content you see on Technology Networks homepage, Log In or Subscribe for Free
LOGIN SUBSCRIBE FOR FREE