Effect of throat size on pressure and void fraction fluctuation in venturi tube microbubble generator

Hamdan, Noor Saffreena and Kaneko, Akiko (2024) Effect of throat size on pressure and void fraction fluctuation in venturi tube microbubble generator. In: 9th International Conference and Exhibition on Sustainable Energy and Advanced Materials, Putrajaya, Malaysia.

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EFFECT OF THROAT SIZE ON PRESSURE AND VOID FRACTION FLUCTUATION IN VENTURI TUBE MICROBUBBLE GENERATOR.pdf
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Abstract

The Venturi type microbubble generator generates microbubble through the breakup of air bubbles that flowed together with the flowing liquid. The breakup occurred as pressure fluctuated inside the tube due to the change of geometry along the tube. As pressure changed, the void fraction varied too. However, this fluctuation was not discussed in regard to the change of throat size. Therefore, we aim to investigate the effect of throat size on the pressure and void fraction fluctuation. The investigation took place using 2 different throat size Venturi tube while other geometry was made constant. Measurement of pressure and void fraction was done referring to a similar setup by the previous study. The result showed that at the same inlet pressure, reduced throat size resulted in lower outlet pressure and increased pressure loss. The void fraction was not significantly different but, the result of generated microbubbles was more promising for the 4 mm Venturi tube.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Venturi, Microbubble, Void fraction
Divisions: Faculty Of Mechanical Technology And Engineering
Depositing User: NUR FARISAH JAFRIN
Date Deposited: 08 Jul 2026 04:47
Last Modified: 08 Jul 2026 04:47
URI: http://eprints.utem.edu.my/id/eprint/29770
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