Parasu Veera, U. ; Joshi, J. B. (1999) Measurement of gas hold-up profiles by gamma ray Tomography: effect of sparger design and height of dispersion in bubble columns Chemical Engineering Research and Design, 77 (4). pp. 303-317. ISSN 0263-8762
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1205/026387699526232
Abstract
Radial variation of the gas hold-up was investigated in 0.385m i.d. bubble column using gamma ray tomography. Radial profiles were measured at three axial locations (HD/D= 0.259, 3 and 5). In all the experiments water was liquid phase and air was gas phase. Superficial gas velocity was varied from 0.06 to 0.3ms−1. Perforated plates were used as spargers. The free area of sparger plates (FA) and the hole diameter (d0) were varied in the range of 0.135 to 5.4% and 0.8 to 87mm respectively. The hold-up profiles were found to depend strongly on the sparger design, at least near the sparger. Further, the height of dispersion was found to influence the hold-up profiles near the sparger. All the results have been correlated on the basis of drift flux model and parabolic holdup profile.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institution of Chemical Engineers. |
| Keywords: | Bubble Columns; Perforated Spargers; Hold-up Profiles; Sparger Design; Aspect Ratio; Tomography |
| ID Code: | 60123 |
| Deposited On: | 08 Sep 2011 09:46 |
| Last Modified: | 08 Sep 2011 09:46 |
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