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All Journal Jurnal Bahan Alam Terbarukan Sainteknol : Jurnal Sains dan Teknologi
Najibulloh, Gunawan Muhammad
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Computer Science & IT Materials Science & Nanotechnology

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Taylor-Couette Column for Emulsion Liquid Membrane System: Characterisation Study Kusumastuti, Adhi; Anis, Samsudin; Najibulloh, Gunawan Muhammad
Jurnal Bahan Alam Terbarukan Vol 8, No 1 (2019): June 2019 [Nationally Accredited - Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v8i1.20162

Abstract

Study on the application of Taylor-Couette column for emulsion liquid membrane system has been done. To optimise extraction process under TCC, a research to investigate effect of viscosity and cylinders rotation is of important. Fluid viscosity was examined by varying volume ratio of kerosene to water. TCC was characterised to determine flow regimes, shear stress, and energy loss distribution. Volume ratio of oil to water was varied at 1:1, 1:3, 1:5, and 1:6 while inner and outer cylinders speed were maintained constant at 300 and 200 rpm, respectively. Investigation on the effect of volume ratio of oil to water towards flow regime ended to same flow regime of Featureless Turbulent. There was degradation of wall shear stress from 8.57x10-2 Pa to 7.42x10-2 Pa.
STUDI EKSPERIMENTAL PENGARUH RASIO VOLUME CAMPURAN MINYAK TANAH-AIR DAN PUTARAN SILINDER TERHADAP KARAKTERISTIK ALIRAN TAYLOR-COUETTE Najibulloh, Gunawan Muhammad; Anis, Samsudin
Sainteknol : Jurnal Sains dan Teknologi Vol 16, No 1 (2018): June 2018
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sainteknol.v%vi%i.14594

Abstract

Tujuan penelitian ini adalah meneliti pengaruh rasio volume campuran minyak tanah-air dan laju putaran silinder terhadap karakteristik dari aliran Taylor-Couette pada Taylor-Couette Column, seperti flow regime, shear stress dan energy loss distribution. Hasil penelitian menunjukkan bahwa penambahan rasio volume air menyebabkan viskositas campuran menjadi lebih kecil, dan bilangan Reynolds akan semakin besar, maka aliran yang terjadi akan semakin turbulen, sehingga mengurangi nilai shear stress dan juga energy loss. Laju putaran silinder dalam dan luar semakin tinggi maka bilangan Reynolds semakin besar, sehingga flow regime akan semakin turbulen dan menciptakan gaya viskos yang rendah. Dengan demikian aliran Taylor-Couette akan berturbulensi tinggi, dan meningkatkan nilai shear stress dan juga energy loss.
Co-Authors Adhi Kusumastuti Samsudin Anis