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Hydrodynamic cavitation on high resistant microfluidic chips

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Talebian Gevari, Moein (2020) Hydrodynamic cavitation on high resistant microfluidic chips. [Thesis]

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Official URL: https://risc01.sabanciuniv.edu/record=b2486353 _ (Table of Contents)

Abstract

Cavitation is one of the phase change phenomena, which occurs as a result of a sharp static pressure drop in a fluidic system. The required pressure drop could be obtained either by acoustic wave propagation, known as acoustic cavitation, or by hydrodynamic pressure drop, known as hydrodynamic cavitation. There are different parameters affecting flow patterns in hydrodynamic cavitation such as geometry of the flow path, thermophysical properties of the working fluid, and roughness elements. In this thesis, high pressure resistive microfluidic devices are fabricated and tested at high inlet pressures. The flow behavior is characterized using cavitation number, Reynolds number, and cavitation flowrate. Different working fluids such as ethanol, PBS, and PFC5 droplets suspension in water are used and the performances of the devices are compared with the case of water. The effect of different lateral wall roughness elements on the flow pattern is studied and the general geometry of the devices is optimized. In addition, applications of hydrodynamic cavitation are considered. The energy harvesting application of hydrodynamic cavitation is implemented and the amount of the possible power generation of the microfluidic devices in the case of coupling with μ−TEGs is analytically investigated. Finally, the bacteria removal performances of the microfluidic devices are assessed. The advantages of the designed and fabricated microfluidic devices are presented and explored as well

Item Type:Thesis
Uncontrolled Keywords:Microfluidics. -- Hydrodynamic Cavitation. -- Energy Harvesting. -- Bacteria Inactivation, Cavitation on a Chip. -- Mikroakıskanlar. -- Hidrodinamik Kavitasyon. -- Enerji Depolama. -- Bakteri Inaktivasyonu. -- Çipin Üzerindeki Kavitasyon.
Subjects:T Technology > TJ Mechanical engineering and machinery > TJ163.12 Mechatronics
ID Code:41175
Deposited By:IC-Cataloging
Deposited On:23 Oct 2020 21:54
Last Modified:23 Oct 2020 21:56

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