A Study on the Characteristics of a Valve-less Micropump with Piezoelectric Actuator
Date Issued
2007
Date
2007
Author(s)
Chou, Shih-Kai
DOI
zh-TW
Abstract
This thesis aims to investigate the design and performance differences of a Piezoelectric Valve-less Micropump (PVM) based upon different sizes of chamber volumes and the inlet/outlet positions. Observation is done through a set of monitoring devices, by changing various parameters to measure the performances and moving situations (pattern?). Data such as flow rate, and pressure etc of the PVM are obtained during measurement in order to provide explicit and valid data for the PVM. Finally the data will be used to further investigate the PVM efficiency.
Although many researches was conducted with regards to micropump, a complete comparison of chamber volume and the positions of inlet/outlet was incomplete. The control variables of this research are chamber height, positions of intlet/outlet, driving frequency and voltage.
The experiment is devided into three parts: The stability of micropump in different setups, fluid push influence of the micropump working pattern with different chamber height, and the performance analysis of the micropump inlet and outlate collocation. Analysis of the experiment data is discussed at the end.
The result discovered to have the largest mass flow rate of 5.8045g/min and the uppermost pressure is 106.6 mm H2O. The combinations of variables are at the chamber height of 1.6 mm, the driving voltage of 140V, frequency 130Hz, at the inlet/outlet combination shown as the diagram below: i.e. left inlet middle outlet.
Although many researches was conducted with regards to micropump, a complete comparison of chamber volume and the positions of inlet/outlet was incomplete. The control variables of this research are chamber height, positions of intlet/outlet, driving frequency and voltage.
The experiment is devided into three parts: The stability of micropump in different setups, fluid push influence of the micropump working pattern with different chamber height, and the performance analysis of the micropump inlet and outlate collocation. Analysis of the experiment data is discussed at the end.
The result discovered to have the largest mass flow rate of 5.8045g/min and the uppermost pressure is 106.6 mm H2O. The combinations of variables are at the chamber height of 1.6 mm, the driving voltage of 140V, frequency 130Hz, at the inlet/outlet combination shown as the diagram below: i.e. left inlet middle outlet.
Subjects
壓電
微幫浦
無閥門
piezoelectric
micropump
valve-less
Type
thesis
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