Type of Document	Thesis
Author	Hendrix, Jason Ryan
Author's Email Address	jasonrhendrix@hotmail.com
URN	etd-04162004-105219
Title	Design and Analysis of Mechanical Micropumps
Degree	Master of Science
Department	Mechanical Engineering, Department of
Advisory Committee	Advisor Name Title Yousef Haik Committee Chair Ching-Jen Chen Committee Member David Cartes Committee Member
Keywords	MEMS Doppler Shiftiscous Drag Statistical Modeling Multipath Micropump Micro Spiral Crescent
Date of Defense	2004-04-15
Availability	unrestricted
Abstract This work focuses on the steps taken to characterize three of the mechanical micropumps developed by the Biomagnetic Engineering Laboratory at Florida State University. This study illustrates the steps taken to bring fluid to the microdevice, corrections of original design failures, computational analysis of the fluid flow in the pumps, development of performance equations and experimental studies to demonstrate the pressure-flow rate curve for one of the three pumps. The entire research serves as a foundation for the characterization of three micropumps, the spiral pump, the crescent pump and the Von Karman pump. Methods were developed to both plumb, prime, and isolate the system for pumping. The first task was to correct flaws in the original design for the pumps. Many deficiencies were present that required redesigns. The redesigns varied from the strengthening of cantilever members to the introduction of new gear transmissions. The new designs introduced in this study overcome the shortcomings in the original design. The research performed on the spiral pump focuses primarily on a computational study. The analysis is used to support the work that previously determined performance equations for the device. The study also offers support for several key assumptions that were used to reach these performance equations. The spiral pump was then subjected to internal resistance tests that were used validate the computational study. Computational studies were also performed on the Von Karman pump. This analysis led to expected output flow rates for the device. The study also justified the concept of naming the pump after the classical flow of the Von Karman pump and used this justification for the formulation of a scaled performance equation for the system. Finally, the crescent pump was characterized experimentally. Output flow rates were then measured, thus providing evidence on the viability of the operation of these devices. A performance equation for the system was also developed which predicts the output flow rate of the pump to within 6%.
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