Solid motion in a three-phase bubble column examined with Radioactive Particle Tracking
Radioactive Particle Tracking (RPT) is a powerful advanced technique for studying the solid motion within industrial scale multiphase reactors. However, it is rather difficult to implement in actual industrial installations, mainly due to the required calibration stage under actual operating conditi...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_09555986_v62_n_p196_Salierno |
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todo:paper_09555986_v62_n_p196_Salierno2023-10-03T15:51:47Z Solid motion in a three-phase bubble column examined with Radioactive Particle Tracking Salierno, G. Maestri, M. Piovano, S. Cassanello, M. Cardona, M.A. Hojman, D. Somacal, H. Axially aligned detectors Radioactive Particle Tracking Solid motion Three-phase bubble column Atmospheric movements Bubble columns Fluidized beds Phase comparators Radioactive tracers Axial dispersion coefficients Calcium alginate beads Flow regime transition Industrial installations Operating condition Radioactive particle tracking Solid motions Three phase Radioactivity Radioactive Particle Tracking (RPT) is a powerful advanced technique for studying the solid motion within industrial scale multiphase reactors. However, it is rather difficult to implement in actual industrial installations, mainly due to the required calibration stage under actual operating conditions. This work has the aim of comparing the motion of calcium alginate beads in a three-phase bubble column examined either with RPT or with an array of the same scintillation detectors used for RPT, but located vertically aligned beside the analyzed vessel. Liquid and solid used for the experiments were in batch mode and mixed by circulating air. The homogeneous and heterogeneous regimes have been explored. Results arising from both techniques, like axial tracer trajectories, axial profiles of tracer positions probabilities, solid axial mixing times and solid axial dispersion coefficients are compared, for highlighting the relevant information that can be extracted from the simplified method, validated by RPT. It is found that the simplified method fairly coincides with the classic technique for estimating several relevant parameters. Finally, the estimated flow regime transition inferred from the simplified method by symbolic analysis is compared with the one arising from chordal holdup trends determined by gamma densitometry, also with satisfactory agreement. © 2017 Elsevier Ltd JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09555986_v62_n_p196_Salierno |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Axially aligned detectors Radioactive Particle Tracking Solid motion Three-phase bubble column Atmospheric movements Bubble columns Fluidized beds Phase comparators Radioactive tracers Axial dispersion coefficients Calcium alginate beads Flow regime transition Industrial installations Operating condition Radioactive particle tracking Solid motions Three phase Radioactivity |
| spellingShingle |
Axially aligned detectors Radioactive Particle Tracking Solid motion Three-phase bubble column Atmospheric movements Bubble columns Fluidized beds Phase comparators Radioactive tracers Axial dispersion coefficients Calcium alginate beads Flow regime transition Industrial installations Operating condition Radioactive particle tracking Solid motions Three phase Radioactivity Salierno, G. Maestri, M. Piovano, S. Cassanello, M. Cardona, M.A. Hojman, D. Somacal, H. Solid motion in a three-phase bubble column examined with Radioactive Particle Tracking |
| topic_facet |
Axially aligned detectors Radioactive Particle Tracking Solid motion Three-phase bubble column Atmospheric movements Bubble columns Fluidized beds Phase comparators Radioactive tracers Axial dispersion coefficients Calcium alginate beads Flow regime transition Industrial installations Operating condition Radioactive particle tracking Solid motions Three phase Radioactivity |
| description |
Radioactive Particle Tracking (RPT) is a powerful advanced technique for studying the solid motion within industrial scale multiphase reactors. However, it is rather difficult to implement in actual industrial installations, mainly due to the required calibration stage under actual operating conditions. This work has the aim of comparing the motion of calcium alginate beads in a three-phase bubble column examined either with RPT or with an array of the same scintillation detectors used for RPT, but located vertically aligned beside the analyzed vessel. Liquid and solid used for the experiments were in batch mode and mixed by circulating air. The homogeneous and heterogeneous regimes have been explored. Results arising from both techniques, like axial tracer trajectories, axial profiles of tracer positions probabilities, solid axial mixing times and solid axial dispersion coefficients are compared, for highlighting the relevant information that can be extracted from the simplified method, validated by RPT. It is found that the simplified method fairly coincides with the classic technique for estimating several relevant parameters. Finally, the estimated flow regime transition inferred from the simplified method by symbolic analysis is compared with the one arising from chordal holdup trends determined by gamma densitometry, also with satisfactory agreement. © 2017 Elsevier Ltd |
| format |
JOUR |
| author |
Salierno, G. Maestri, M. Piovano, S. Cassanello, M. Cardona, M.A. Hojman, D. Somacal, H. |
| author_facet |
Salierno, G. Maestri, M. Piovano, S. Cassanello, M. Cardona, M.A. Hojman, D. Somacal, H. |
| author_sort |
Salierno, G. |
| title |
Solid motion in a three-phase bubble column examined with Radioactive Particle Tracking |
| title_short |
Solid motion in a three-phase bubble column examined with Radioactive Particle Tracking |
| title_full |
Solid motion in a three-phase bubble column examined with Radioactive Particle Tracking |
| title_fullStr |
Solid motion in a three-phase bubble column examined with Radioactive Particle Tracking |
| title_full_unstemmed |
Solid motion in a three-phase bubble column examined with Radioactive Particle Tracking |
| title_sort |
solid motion in a three-phase bubble column examined with radioactive particle tracking |
| url |
http://hdl.handle.net/20.500.12110/paper_09555986_v62_n_p196_Salierno |
| work_keys_str_mv |
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