Title :
Numerical design and performance of a valveless micropump
Author :
Dinh, Thien X. ; DAU, Van T. ; Ogami, Y. ; Sugiyama, S.
Author_Institution :
Dept. of Mech. Eng., Ritsumeikan Univ., Kusatsu
Abstract :
This paper presents design and numerically study performance of a valveless micropump. The micropump consists of two inlet channels, a pump chamber, and an outlet channel. These components are connected through a specific throat on one planar layer. A side of the pump chamber is enclosed by a vibrating plate which deforms volume of the pump chamber with time, therefore excites fluid from the inlet to the outlet. The plate was supposed to be made of PDMS which ensures a large deformation. The obtained results show that the flow rate of the pump increases linearly with increasing amplitude of the vibrating plate. With the exiting frequency of 50 Hz and deflection of 40 mum, the flow rate attains 4.25 mL/min and pump pressure is 1 kPa for the pump chamber diameter of 7 mm. Since there are two inlets, mixing feature of the pump is considered. It shows that the pump can work as an efficient micromixer.
Keywords :
micropumps; mixers (circuits); PDMS; inlet channels; micromixer; numerical design; outlet channel; pump chamber; pump pressure; valveless micropump; Biomembranes; Communications technology; Frequency; Magnetic devices; Magnetic materials; Microfluidics; Micropumps; Paper technology; Permanent magnets; Pumps; PDMS; micromixer; micropump; vibrating micro-plate;
Conference_Titel :
Advanced Technologies for Communications, 2008. ATC 2008. International Conference on
Conference_Location :
Hanoi
Print_ISBN :
978-1-4244-2680-5
Electronic_ISBN :
978-1-4244-2681-2
DOI :
10.1109/ATC.2008.4760587