Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal Jurnal Energi Dan Manufaktur Jurnal ISOMETRI
W.M. Rumaherang
Unknown Affiliation
Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Perhitungan aliran dan peramalan karakteristik pompa sentrifugal bertingkat dengan penggunaan CAD blade’s system W.M. Rumaherang
Jurnal Energi Dan Manufaktur Vol 3, No.2 Desember 2008
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (509.607 KB)

Abstract

An Important problem in centrifugal pumps designing is characteristic works in theoretical calculations. They are precise or very close to practical characteristics and results of tests in laboratory. Hydrodynamics parameters influence on the inlet sides, blades of impeller, vaned diffusers, stage guide vanes and side go out of pump. In turn they have very strong influence on the characteristics. In consequence to the plan of centrifugal pump, an important problem is geometrical constructions of the blades impeller, vaned diffusers, stage guide vanes and outlet of pump. The solution of this problem lays accuracy in hydro dynamical calculations in the design process, manufacturing and installation of pump. Special CAD for the blades can simplify the design process. The obtained result is highly accurate. Sketch can be constructively conducted by AUTOCAD, KOMPAS (KOM?AC) or other programs to determine coordinates of fixed points in the blade lines. All that points are then arranged in formations according to axis r, x, y, z, in the dat.file as input file to CAD. The result presented in the drawing form of blades profile and in the forecasting of whole pumps characteristics: speed, loses, power (N), head (H) and efficiency (?) versus capacity (Q). Calculations made in the several times, get the construction pump with the optimal characteristics. The result indicates that optimal conditions obtain to profile with the main dimensions: impeller dbt=0.065 m, D2=0.240 m, D0=0.1312, z=7, b1=, b2=0.0414 m, ?1=26o, ?s2=23o, ?=103o, diffusers: ?d= ?s4= ?d= ?s5=40o, ?sc= ?bl3=12,0o , ?=40o, stage guide vanes: ?bs= ?s6=89,5o,?= 600.
STUDI PENGARUH PUTARAN TERHADAP KINERJA OPTIMUM POMPA ALIRAN SENTRIFUGAL Zulfikar Anihu; W.M. Rumaherang; J. Louhenapessy
Jurnal ISOMETRI Vol 5 No 1 (2026): Jurnal Penelitian Jurusan Teknik Mesin
Publisher : Jurusan Teknik Mesin Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/isometri.2026.5.1.8-13

Abstract

Pompa sentrifugal merupakan pompa dengan efisiensi tinggi, konstruksi sederhana dan banyak digunakan di dunia. Pemilihan dan pengoperasian pompa untuk aplikasi didasarkan pada kurva karakteristik yaitu hubungan antara head (H), Daya (P) dan efsiensi terhadap Debit (Q) dan kesesuaiannya dengan system pemompaan. Berapakah nilai optimal kinerja pompa dan sistemnya merupakan masalah utama riset ini yang harus diselesaikan dengan tujuan menentukan kondisi optimal kerja pompa dan system pemompaan .Penelitian dilakukan dengan menggunakan metode simulasi hidrodinamika berbasis Computational Fluid Dynamics (CFD) dengan variasi putaran pompa yang diuji adalah 500, 1000, 1500, dan 2000 rpm. Hasil penelitian menunjukkan bahwa putaran pompa mempunyai pengaruh yang signifikan terhadap kinerja optimum. Pada putaran 2000 rpm, efisiensi pompa mencapai nilai tertinggi, sedangkan pada putaran yang lebih tinggi, efisiensi cenderung menurun. Head dan daya pompa meningkat seiring dengan peningkatan putaran, namun efisiensi menunjukkan pola yang berbeda. Penelitian ini menyimpulkan bahwa untuk mencapai kinerja optimal, pompa sentrifugal sebaiknya dioperasikan pada putaran 2000 rpm.
Co-Authors J. Louhenapessy Zulfikar Anihu