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)

Metadata
Show full item recordAbstract
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 velocitySource:
Powder Technology, 2016, 289, 95-103Publisher:
- Elsevier
Funding / projects:
DOI: 10.1016/j.powtec.2015.11.047
ISSN: 0032-5910
WoS: 000370095400014
Scopus: 2-s2.0-84948799422
Collections
Institution/Community
IHTMTY - 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 . .