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Prediction of bed expansion of polydisperse quartz sand mixtures fluidized with water

Authorized Users Only
2016
Authors
Đuriš, Mihal
Kaluđerović-Radoičić, Tatjana
Arsenijević, Zorana
Garić Grulović, Radmila
Grbavčić, Željko
Article (Published version)
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Abstract
In this paper, the minimum fluidization velocity and bed expansion of polydisperse sand mixtures fluidized with water were investigated. The fluidization experiments were carried out using 19 different fractions of quartz filtration sand with sieve diameters in the interval d(m) = 0.359 to 2.596 mm. The intercept fluid velocity U-E was determined from the plot of fluid superficial velocity vs. porosity. The results obtained indicated that U-E was about 11% higher than particle terminal velocity U-t, for all of the sand fractions investigated. Based on the experimental data, the new model for bed expansion of quartz filtration sand was proposed. Using the proposed model, the mean absolute deviation in predicting the bed porosity epsilon, for a given superficial velocity U, was 2.66%, while the mean absolute deviation in predicting U at a given epsilon was 8.75%. For the prediction of the minimum fluidization velocity, U-mf, several literature models were tested. The best results were ob...tained using the Ergun model, with mean absolute deviation in predicting U-mf of 12.42%. A new simple correlation for the prediction of the minimum fluidization velocity U-mf was proposed. The proposed correlation is the function only of the mean sieve diameter of the filtration sand fraction. The mean absolute deviation between the experimental and the predicted values of U-mf was 7.65%.

Keywords:
Quartz filtration sand / Liquid fluidization / Bed expansion / Expansion index / Minimum fluidization velocity
Source:
Powder Technology, 2016, 289, 95-103
Publisher:
  • Elsevier
Funding / projects:
  • The development of efficient chemical-engineering processes based on the transport phenomena research and process intensification principles (RS-172022)

DOI: 10.1016/j.powtec.2015.11.047

ISSN: 0032-5910

WoS: 000370095400014

Scopus: 2-s2.0-84948799422
[ Google Scholar ]
10
8
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/1945
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Đuriš, Mihal
AU  - Kaluđerović-Radoičić, Tatjana
AU  - Arsenijević, Zorana
AU  - Garić Grulović, Radmila
AU  - Grbavčić, Željko
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1945
AB  - In this paper, the minimum fluidization velocity and bed expansion of polydisperse sand mixtures fluidized with water were investigated. The fluidization experiments were carried out using 19 different fractions of quartz filtration sand with sieve diameters in the interval d(m) = 0.359 to 2.596 mm. The intercept fluid velocity U-E was determined from the plot of fluid superficial velocity vs. porosity. The results obtained indicated that U-E was about 11% higher than particle terminal velocity U-t, for all of the sand fractions investigated. Based on the experimental data, the new model for bed expansion of quartz filtration sand was proposed. Using the proposed model, the mean absolute deviation in predicting the bed porosity epsilon, for a given superficial velocity U, was 2.66%, while the mean absolute deviation in predicting U at a given epsilon was 8.75%. For the prediction of the minimum fluidization velocity, U-mf, several literature models were tested. The best results were obtained using the Ergun model, with mean absolute deviation in predicting U-mf of 12.42%. A new simple correlation for the prediction of the minimum fluidization velocity U-mf was proposed. The proposed correlation is the function only of the mean sieve diameter of the filtration sand fraction. The mean absolute deviation between the experimental and the predicted values of U-mf was 7.65%.
PB  - Elsevier
T2  - Powder Technology
T1  - Prediction of bed expansion of polydisperse quartz sand mixtures fluidized with water
VL  - 289
SP  - 95
EP  - 103
DO  - 10.1016/j.powtec.2015.11.047
ER  - 
@article{
author = "Đuriš, Mihal and Kaluđerović-Radoičić, Tatjana and Arsenijević, Zorana and Garić Grulović, Radmila and Grbavčić, Željko",
year = "2016",
abstract = "In this paper, the minimum fluidization velocity and bed expansion of polydisperse sand mixtures fluidized with water were investigated. The fluidization experiments were carried out using 19 different fractions of quartz filtration sand with sieve diameters in the interval d(m) = 0.359 to 2.596 mm. The intercept fluid velocity U-E was determined from the plot of fluid superficial velocity vs. porosity. The results obtained indicated that U-E was about 11% higher than particle terminal velocity U-t, for all of the sand fractions investigated. Based on the experimental data, the new model for bed expansion of quartz filtration sand was proposed. Using the proposed model, the mean absolute deviation in predicting the bed porosity epsilon, for a given superficial velocity U, was 2.66%, while the mean absolute deviation in predicting U at a given epsilon was 8.75%. For the prediction of the minimum fluidization velocity, U-mf, several literature models were tested. The best results were obtained using the Ergun model, with mean absolute deviation in predicting U-mf of 12.42%. A new simple correlation for the prediction of the minimum fluidization velocity U-mf was proposed. The proposed correlation is the function only of the mean sieve diameter of the filtration sand fraction. The mean absolute deviation between the experimental and the predicted values of U-mf was 7.65%.",
publisher = "Elsevier",
journal = "Powder Technology",
title = "Prediction of bed expansion of polydisperse quartz sand mixtures fluidized with water",
volume = "289",
pages = "95-103",
doi = "10.1016/j.powtec.2015.11.047"
}
Đuriš, M., Kaluđerović-Radoičić, T., Arsenijević, Z., Garić Grulović, R.,& Grbavčić, Ž.. (2016). Prediction of bed expansion of polydisperse quartz sand mixtures fluidized with water. in Powder Technology
Elsevier., 289, 95-103.
https://doi.org/10.1016/j.powtec.2015.11.047
Đuriš M, Kaluđerović-Radoičić T, Arsenijević Z, Garić Grulović R, Grbavčić Ž. Prediction of bed expansion of polydisperse quartz sand mixtures fluidized with water. in Powder Technology. 2016;289:95-103.
doi:10.1016/j.powtec.2015.11.047 .
Đuriš, Mihal, Kaluđerović-Radoičić, Tatjana, Arsenijević, Zorana, Garić Grulović, Radmila, Grbavčić, Željko, "Prediction of bed expansion of polydisperse quartz sand mixtures fluidized with water" in Powder Technology, 289 (2016):95-103,
https://doi.org/10.1016/j.powtec.2015.11.047 . .

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