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Micro-macro transition for numerical simulation of submerged membrane bioreactor

Moutafchìeva Dessislava

Moutafchìeva Dessislava

Department of Chemical Engineering, University of Chemical Technology and MetallurgySofia, Bulgaria
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Dessislava, Moutafchìeva
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Iliev Veselin

Iliev Veselin

Department of Applied Mechanics, University of Chemical Technology and MetallurgySofia, Bulgaria
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Veselin, Iliev
  
30 kwi 2020
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Kategoria artykułu: Research Article
Data publikacji: 30 kwi 2020
Zakres stron: 82 - 88
DOI: https://doi.org/10.2478/ebtj-2020-0009
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© 2020 Moutafchìeva Dessislava, Iliev Veselin, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Figure 1

Picture of the membrane.
Picture of the membrane.

Figure 2

Geometric model of the bubble column with membrane module.
Geometric model of the bubble column with membrane module.

Figure 3

Geometric model of the cell, created with a CAD modeler. (a – basic volume of the single-cell; b- the added volume of the fluid in front and behind the membrane)
Geometric model of the cell, created with a CAD modeler. (a – basic volume of the single-cell; b- the added volume of the fluid in front and behind the membrane)

Figure 4

Geometrical model of the fluid part for a different number of single cells.
Geometrical model of the fluid part for a different number of single cells.

Figure 5

The permeability of the membrane by simulation of one, two and four cells from the representative area of the membrane structure and for fluids with different viscosity.
The permeability of the membrane by simulation of one, two and four cells from the representative area of the membrane structure and for fluids with different viscosity.

Figure 6

The fluid flow depending on the viscosity.
The fluid flow depending on the viscosity.

Figure 7

Water volume fraction (a), gas holdup (b), water velocity (c) and air velocity (d) in bubble column at the numerical solution with superficial gas velocity 0,5 m/s and bubble diameter 3 mm.
Water volume fraction (a), gas holdup (b), water velocity (c) and air velocity (d) in bubble column at the numerical solution with superficial gas velocity 0,5 m/s and bubble diameter 3 mm.

Table 1

k(m2)Q (numerical)(m3/s)Q (Darsy’s law)(m3/s)
1.00 E-135.65 E-095.56 E-09
1.00 E-105.60 E-065.56 E-06
1.00 E-085.61 E-045.56 E-04
1.00 E-075.56 E-035.56 E-03
1.00 E-063.90 E-025.56 E-02
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Nauki biologiczne, Genetics, Biotechnologia, Bioinformatyka, Nauki biologiczne, inne
Kanał RSS czasopisma