Design and Performance Testing of a 3D Printed Mini DC Powered Pump for Microbubble Generator

Tulus Hidayat Yusanto; James Julian; Fitri Wahyuni; Adi Winarta; I Wayan M. Managi Marlon Managi

doi:10.12962/j25481479.v8i4.18826

Design and Performance Testing of a 3D Printed Mini DC Powered Pump for Microbubble Generator

Tulus Hidayat Yusanto, James Julian, Fitri Wahyuni, Adi Winarta, I Wayan M. Managi Marlon Managi

Abstract

Centrifugal pumps are the most commonly utilized in industries, agriculture, and households. In the microbubble generator, the centrifugal pump is driven by a DC motor for efficiency. This research was conducted to determine the optimal centrifugal pump design for microbubble generators using 3D-printed PLA material. The pump drive uses a brushless DC motor. With impeller dimensions r₁=16mm, r₂=26mm, β₁=46.8, β₂=62.8, and number of blades = 8, the resulting head is 2m at a constant operational current of 3A and a flowrate of 0 L/m. The same operational current input yields a maximum flow rate of 14 L/min with a head of 0.5 m. Maximum head exists when there is no liquid on the outlet side. At current ≥ 6.5A, there is a deviation from the previously formed trend. The input power of 58W is generated when the maximum flow rate is 25L/m. Maximum efficiency can be achieved as the input current increases to ≤6.5A and 18L/m. At conditions ≥6.5A, efficiency decreases drastically as the input current increases. This centrifugal pump design can work optimally at a constant input current of 6.5A with an input power 58W for the microbubble generator.

Keywords

Centrifugal pump; DC pump; 3d Printed; Efficiency; Flowrate; Head

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DOI: http://dx.doi.org/10.12962/j25481479.v8i4.18826