Fluid Dynamics Properties of Barium Hexaferrite Particle

https://doi.org/10.22146/jfi.24411

Perdamean Sebayang(1*), Muljadi -(2), Anggito Tetuko(3), Priyo Sardjono(4)

(1) Pusat Penelitian Fisika LIPI Komplek Puspiptek Gedung 440, Tangerang Selatan, 15314 Telp : (021) 7560570, Fax : (021) 7560554
(2) Pusat Penelitian Fisika LIPI Komplek Puspiptek Gedung 440, Tangerang Selatan, 15314 Telp : (021) 7560570, Fax : (021) 7560554
(3) Pusat Penelitian Fisika LIPI Komplek Puspiptek Gedung 440, Tangerang Selatan, 15314 Telp : (021) 7560570, Fax : (021) 7560554
(4) Pusat Penelitian Fisika LIPI Komplek Puspiptek Gedung 440, Tangerang Selatan, 15314 Telp : (021) 7560570, Fax : (021) 7560554
(*) Corresponding Author

Abstract


Particle size distribution of Barium Hexaferrite sample has been performed with commonly used methods of mathematical models by Rosin-Rammler (RR model) distribution. By using sieving method from 20-400 mesh, the basis of network analysis distribution function F(d) and density function, f(d) were obtained. Particle size estimation was performed using sedimentation gravitation based on Stokes law to obtained Reynolds numbers and terminal velocity of flocs in medium value has been calculated. The results of Reynolds numbers shows that Barium hexaferrite flocs in ethanol medium in laminar flow, whereas terminal velocity increases as larger particle size and density, however, bulk density reduce due to contained highly porous in the sample which yields lower bulk density. The relationship of turbidity with the floc size has been evaluated. The results show that turbidity and bulk density increases as smaller particle size, meanwhile, terminal velocity reduced. Differences in turbidity for each sample (20-400 mesh) has been determined which shows two region instead, with first region from 150-850 µm yields larger differences compared to the second region: 37-105 µm.  


Full Text:

PDF



DOI: https://doi.org/10.22146/jfi.24411

Article Metrics

Abstract views : 147 | views : 91

Refbacks

  • There are currently no refbacks.


Copyright (c) 2017 Jurnal Fisika Indonesia



JFI Journal is indexed by:

Creative Commons License
Jurnal Fisika Indonesia, its website and the articles published are licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. © Universitas Gadjah Mada.
web
analytics View My Stats