Spout diameter in fine particle conical spouted beds: Assessing the influence of draft tubes by PTV
The spout diameter is an essential parameter for designing spouted bed contactors, as it conditions the gas–solid contact and heat and mass transfer rates. Several correlations have been proposed in the literature to estimate the spout size, but they do not provide accurate results in beds made up o...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Chemical Engineering Journal Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666821124001133 |
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| author | Maider Bolaños Xabier Sukunza Mikel Tellabide Idoia Estiati Haritz Altzibar Miriam Arabiourrutia Martin Olazar |
| author_facet | Maider Bolaños Xabier Sukunza Mikel Tellabide Idoia Estiati Haritz Altzibar Miriam Arabiourrutia Martin Olazar |
| author_sort | Maider Bolaños |
| collection | DOAJ |
| description | The spout diameter is an essential parameter for designing spouted bed contactors, as it conditions the gas–solid contact and heat and mass transfer rates. Several correlations have been proposed in the literature to estimate the spout size, but they do not provide accurate results in beds made up of fine particles, especially when they are equipped with open-sided draft tubes. Accordingly, the spout–annulus interface has been determined by means of Particle Tracking Velocimetry (PTV) and the spout shape has been delineated under different operating conditions in fountain confined conical spouted beds of varying geometric parameters. The air inlet diameter and gas velocity, as well as the aperture ratio of the open-sided draft tubes, are the parameters of greatest influence. Accordingly, a new correlation has been proposed, which allows predicting accurately the spout size in beds without draft tube, as well as those equipped with open-sided ones. |
| format | Article |
| id | doaj-art-8dd40a0cf24c418badb2028f15f451de |
| institution | Kabale University |
| issn | 2666-8211 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Engineering Journal Advances |
| spelling | doaj-art-8dd40a0cf24c418badb2028f15f451de2025-02-03T04:17:02ZengElsevierChemical Engineering Journal Advances2666-82112025-03-0121100696Spout diameter in fine particle conical spouted beds: Assessing the influence of draft tubes by PTVMaider Bolaños0Xabier Sukunza1Mikel Tellabide2Idoia Estiati3Haritz Altzibar4Miriam Arabiourrutia5Martin Olazar6Corresponding author.; Dept. of Chemical Engineering, University of the Basque Country, UPV/EHU, PO Box 644 E48080 Bilbao, SpainDept. of Chemical Engineering, University of the Basque Country, UPV/EHU, PO Box 644 E48080 Bilbao, SpainDept. of Chemical Engineering, University of the Basque Country, UPV/EHU, PO Box 644 E48080 Bilbao, SpainDept. of Chemical Engineering, University of the Basque Country, UPV/EHU, PO Box 644 E48080 Bilbao, SpainDept. of Chemical Engineering, University of the Basque Country, UPV/EHU, PO Box 644 E48080 Bilbao, SpainDept. of Chemical Engineering, University of the Basque Country, UPV/EHU, PO Box 644 E48080 Bilbao, SpainDept. of Chemical Engineering, University of the Basque Country, UPV/EHU, PO Box 644 E48080 Bilbao, SpainThe spout diameter is an essential parameter for designing spouted bed contactors, as it conditions the gas–solid contact and heat and mass transfer rates. Several correlations have been proposed in the literature to estimate the spout size, but they do not provide accurate results in beds made up of fine particles, especially when they are equipped with open-sided draft tubes. Accordingly, the spout–annulus interface has been determined by means of Particle Tracking Velocimetry (PTV) and the spout shape has been delineated under different operating conditions in fountain confined conical spouted beds of varying geometric parameters. The air inlet diameter and gas velocity, as well as the aperture ratio of the open-sided draft tubes, are the parameters of greatest influence. Accordingly, a new correlation has been proposed, which allows predicting accurately the spout size in beds without draft tube, as well as those equipped with open-sided ones.http://www.sciencedirect.com/science/article/pii/S2666821124001133Conical spouted bedsDraft tubeSpout diameterFine particlesFountain confiner |
| spellingShingle | Maider Bolaños Xabier Sukunza Mikel Tellabide Idoia Estiati Haritz Altzibar Miriam Arabiourrutia Martin Olazar Spout diameter in fine particle conical spouted beds: Assessing the influence of draft tubes by PTV Chemical Engineering Journal Advances Conical spouted beds Draft tube Spout diameter Fine particles Fountain confiner |
| title | Spout diameter in fine particle conical spouted beds: Assessing the influence of draft tubes by PTV |
| title_full | Spout diameter in fine particle conical spouted beds: Assessing the influence of draft tubes by PTV |
| title_fullStr | Spout diameter in fine particle conical spouted beds: Assessing the influence of draft tubes by PTV |
| title_full_unstemmed | Spout diameter in fine particle conical spouted beds: Assessing the influence of draft tubes by PTV |
| title_short | Spout diameter in fine particle conical spouted beds: Assessing the influence of draft tubes by PTV |
| title_sort | spout diameter in fine particle conical spouted beds assessing the influence of draft tubes by ptv |
| topic | Conical spouted beds Draft tube Spout diameter Fine particles Fountain confiner |
| url | http://www.sciencedirect.com/science/article/pii/S2666821124001133 |
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