Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
622288 | Chemical Engineering Research and Design | 2009 | 19 Pages |
Abstract
In case of low H/D ratio bubble columns, sparger design governs the performance of bubble column reactors. Therefore, a comprehensive study was undertaken for single ring spargers, multiple ring spargers and spiders covering a wide range of hole diameters (2-6Â mm), ring diameter (0.4-1Â m), number of holes (19-90), number of rings (1-4), number of arms (3-5) and arm length (0.4-1Â m). The flow distribution and critical weep point velocity was related to geometric and operating parameters. CFD simulations (ANSYS CFX-10.0) have been performed for all these cases and very good agreement was observed between the CFD predictions and experimental values of pressure, hole velocity and the critical weep point velocity. A step-wise design procedure for all types of sparger is presented along with a worked example. Further a new sparger (Wheel type) is proposed which would be superior to the existing spargers.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Anand V. Kulkarni, Shrikant V. Badgandi, Jyeshtharaj B. Joshi,