Haque, M. W. ; Nigam, K. D. P. ; Viswanathan, K. ; Joshi, J. B. (1988) Studies on bubble rise velocity in bubble columns employing non-Newtonian solutions Chemical Engineering Communications, 73 (1). pp. 31-42. ISSN 0098-6445
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Official URL: http://www.tandfonline.com/doi/abs/10.1080/0098644...
Related URL: http://dx.doi.org/10.1080/00986448808940431
Abstract
A new method is developed to estimate the bubble sizes in a large scale bubble column employing non-Newtonian solutions. It is based on estimating the single bubble rise velocity (ubr) from a plot of the square of superficial gas velocity (U2 G) and the measured gas hold-up raised to a power of 2.5 ( ε2.5) and back calculation of volume to surface mean bubble diameter (dus) from Hirose and Moo-Young's correlation for ubr<0.3m/s or Davies and Taylor's equation for ubr>0.3m/s. The experimental data collected with carboxymethyl cellulose solutions confirm the validity of the method.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Taylor and Francis Group. |
| Keywords: | Bubble Columns; Bubble Rise Velocity; Bubble Diameter; Gas Hold-up; Non-Newtonian; Multiphase Reactors |
| ID Code: | 61164 |
| Deposited On: | 13 Sep 2011 10:51 |
| Last Modified: | 13 Sep 2011 10:51 |
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