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A CFD Study of the Effects of Feed Diameter on the Pressure Drop in Acyclone Separator

  • A. Rezvanivand Fanayi EMAIL logo and A. M. Nikbakht
Published/Copyright: January 20, 2015
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International Journal of Food Engineering
From the journal International Journal of Food Engineering Volume 11 Issue 1

Abstract

This work presents a Computational Fluid Dynamics approach to evaluate the effects of feed diameter on the pressure drop and magnitude velocity in an aerocyclone utilized in feed processing machinery. Traditionally cyclone separators have been used in agro-industry as pre-screening devices to separate coarse suspended particles (diameter>10 µm) from a gas stream, which is subsequently cleaned of fine particles using some other techniques. Hence particle diameter plays a major role in the quality of separation. Study includes five levels of particle diameters (10, 15, 25, 50 and 100 µm) and their impact on the performance of the cyclone. Pressure drop values were estimated to be 601, 668, 787, 840 and 894 Pa for diameters of 10, 15, 25, 50 and 100 µm, respectively. Also magnitude velocity values were estimated to be 19.4, 19.6, 20.3, 20.6 and 20.9 ms−1 for diameters of 10, 15, 25, 50 and 100 µm.

Keywords: cyclone; CFD; particles diameter; Reynolds stress model

Nomenclature

CD

drag coefficient

d

particle diameter, m

d¯

characteristic diameter

Fk

momentum transport coefficient

g

acceleration due to gravity, ms−2

m

particle mass, kg

n

distribution parameter

p′

dispersion pressure, pa

rp

radius of particle, m

Re

Reynolds number

t

time, s

u

instantaneous velocity, ms−1

u′

dispersion velocity, ms−1

u¯

time average velocity in axial direction, ms−1

up

particle instantaneous velocity in axial direction, ms−1

vp

particle instantaneous velocity in radial direction, ms−1

v¯

time average velocity in radial direction, ms−1

wp

particle instantaneous velocity in tangential direction, ms−1

w¯

time average velocity in radial direction, ms−1

x

axis, m

δ

Kroneker factor

μ

fluid velocity, kg m−1 s−1

ρ

density, kg m−3

Subscript
g

Gas

i,j,k

1,2,3

P

Particle

t

tangential direction

z

axial direction

References

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Published Online: 2015-1-20
Published in Print: 2015-2-1

©2015 by De Gruyter

Articles in the same Issue

  1. Frontmatter
  2. Research Articles
  3. Investigation of UF and MF Membrane Residual Fouling in Full-Scale Dairy Production Using FT-IR to Quantify Protein and Fat
  4. Mathematical Modeling of Betanin Extraction from Red Beet (Beta vulgaris L.) by Solid–Liquid Method
  5. Rapid Discrimination of Apple Varieties via Near-Infrared Reflectance Spectroscopy and Fast Allied Fuzzy C-Means Clustering
  6. Formulation Development of Multilayered Fish Oil Emulsion by using Electrostatic Deposition of Charged Biopolymers
  7. Reduction of Turbidity of Beet Sugar Solutions by Mechanical and Chemical Treatment
  8. Purification of a Bacteriocin from Lactobacillus plantarum ZJ217 Active Against Methicillin-Resistant Staphylococcus aureus
  9. Influence of Different Wall Materials on the Microencapsulation of Virgin Coconut Oil by Spray Drying
  10. A CFD Study of the Effects of Feed Diameter on the Pressure Drop in Acyclone Separator
  11. Electrolyzed Water Generated Using a Circulating Reactor
  12. Determination of Volatile Compounds of Chinese Traditional Aromatic Sunflower Seeds (Helianthus annulus L.)
  13. Static Rheological Study of Ocimum basilicum Seed Gum
  14. Finite Element Model to Predict the Bioconversion Rate of Glucose to Fructose using Escherichia coli K12 for Sugar Production from Date
  15. Influence of Hot Bed Spray Dryer Parameters on Physical Properties of Peppermint (Mentha piperita L.) Tea Powder
  16. Foam-Mat Drying of Muskmelon
  17. Simulating Continuous Time Production Flows in Food Industry by Means of Discrete Event Simulation
  18. Shorter Communication
  19. Effect of Vacuum Soaking on the Properties of Soybean (Glycine max (L.) Merr.)
https://doi.org/10.1515/ijfe-2014-0125
Keywords for this article
cyclone; CFD; particles diameter; Reynolds stress model

Articles in the same Issue

  1. Frontmatter
  2. Research Articles
  3. Investigation of UF and MF Membrane Residual Fouling in Full-Scale Dairy Production Using FT-IR to Quantify Protein and Fat
  4. Mathematical Modeling of Betanin Extraction from Red Beet (Beta vulgaris L.) by Solid–Liquid Method
  5. Rapid Discrimination of Apple Varieties via Near-Infrared Reflectance Spectroscopy and Fast Allied Fuzzy C-Means Clustering
  6. Formulation Development of Multilayered Fish Oil Emulsion by using Electrostatic Deposition of Charged Biopolymers
  7. Reduction of Turbidity of Beet Sugar Solutions by Mechanical and Chemical Treatment
  8. Purification of a Bacteriocin from Lactobacillus plantarum ZJ217 Active Against Methicillin-Resistant Staphylococcus aureus
  9. Influence of Different Wall Materials on the Microencapsulation of Virgin Coconut Oil by Spray Drying
  10. A CFD Study of the Effects of Feed Diameter on the Pressure Drop in Acyclone Separator
  11. Electrolyzed Water Generated Using a Circulating Reactor
  12. Determination of Volatile Compounds of Chinese Traditional Aromatic Sunflower Seeds (Helianthus annulus L.)
  13. Static Rheological Study of Ocimum basilicum Seed Gum
  14. Finite Element Model to Predict the Bioconversion Rate of Glucose to Fructose using Escherichia coli K12 for Sugar Production from Date
  15. Influence of Hot Bed Spray Dryer Parameters on Physical Properties of Peppermint (Mentha piperita L.) Tea Powder
  16. Foam-Mat Drying of Muskmelon
  17. Simulating Continuous Time Production Flows in Food Industry by Means of Discrete Event Simulation
  18. Shorter Communication
  19. Effect of Vacuum Soaking on the Properties of Soybean (Glycine max (L.) Merr.)
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