Numerical Study of Fluid Flow Behavior in Closed Impeller Type Centrifugal Pump with Sharp Leading Edge Blade and Additional Slot on The Impeller Blade

Ramadhan, Kemal Aulia (2025) Numerical Study of Fluid Flow Behavior in Closed Impeller Type Centrifugal Pump with Sharp Leading Edge Blade and Additional Slot on The Impeller Blade. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perkembangan industri dan teknologi moden seiring berjalannya waktu telah menimbulkan dampak yang signifikan terhadap aspek penting dalam kehidupan manusia. Salah satu aspek penting itu adalah penyaluran fluida. Baik itu minyak, air, ataupun fluida lainnya. Salah satu perangkat yang digunakan untuk memindahkan adalah pompa sentrifugal. Pompa sentrifugal dalam beroperasi tidak terhindar dari losses. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan slot pada sudu impeller di iringi dengan penambahan jumlah sudu impeller. Variasi pada penelitian ini yaitu penambahan slot pada posisi 30% dan 40% dari leading edge dan masing – masing debit 0,00001 kg/s, 0,3846 kg/s, 1 kg/s, 3 kg/s. Tahapan pada penelitian ini spesifiknya pada pre- yaitu membuat geometri pada software SOLIDWORK 2023, selanjutnya melakukan pembuatan meshing dan mengatur kondisi batas menggunakan FLUENT 2021 R2. Aspek – aspek yang ditentukan pada tahap ini yaitu check, scale, smooth/swap grid, grid, solver, viscous, materials, unit boundary condition, soultions, initialization, monitoring residual, dan iterate. Simulasi ini nantinya akan menghasilkan data berupa head, kontur tekanan dan kecepatan , dan juga vector kecepatan. Hasil simulasi menunjukan bahwa penempatan slot memiliki pengaruh pada performa pompa. Penambahan slot ini menyebabkan bertambahnya momentum aliran yang memungkin kan fluida mengalirdari lower side ke uper side sudu impeller. Efisiensi terbesar dari pompa sentrifugal dengan penambahan slot didapatkan oleh variasi penempatan slot 30% sebesar 77,68%. Head tertinggi didapat dari variasi penempatan slot 30% sebesar 15,38 m.
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The development of modern industry and technology over time has had a significant impact on important aspects of human life. One important aspect is fluid distribution. Be it oil, water, or other fluids. One of the devices used to move is a centrifugal pump. Centrifugal pumps in operation are not protected from losses. The aim of this research is to determine the effect of adding slots to the impeller blades accompanied by increasing the number of impeller blades. Variations in this research are the addition of slots at positions 30% and 40% of the leading edge and respectively the discharge is 0.00001 kg/s, 0.3846 kg/s, 1 kg/s, 3 kg/s.
The stages in this research are specifically pre-, namely creating geometry in SOLIDWORK 2023 software, then creating meshing and setting boundary conditions using FLUENT 2021 R2. The aspects determined at this stage are check, scale, smooth/swap grid, grid, solver, viscous, materials, unit boundary conditions, soultions, initialization, residual monitoring, and iterate. This simulation will later produce data in the form of head, pressure and velocity contours, and also a velocity vector.
The simulation results show that slot placement has an influence on pump performance. The addition of this slot causes an increase in flow momentum which allows fluid to flow from the lower side to the upper side of the impeller blade. The greatest efficiency of the centrifugal pump with the addition of slots was obtained by varying the slot placement by 30%, amounting to 77.68%. The highest head was obtained from a 30% slot placement variation of 15.38 m.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	centrifugal pump, slot, blade number, flowrate, numerical method
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ903 Pumping machinery.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	Kemal Aulia Ramadhan
Date Deposited:	31 Jan 2025 06:33
Last Modified:	31 Jan 2025 06:33
URI:	http://repository.its.ac.id/id/eprint/117498

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