Fluid dynamic in bubble columns with heat exchanger internals
Other Title(s)
ديناميكية السوائل في الأعمدة الفقاعية ذات أعمدة التبادل الحراري الداخلية
Author
Source
Engineering and Technology Journal
Issue
Vol. 32, Issue 11A (30 Nov. 2014), pp.2815-2829, 15 p.
Publisher
Publication Date
2014-11-30
Country of Publication
Iraq
No. of Pages
15
Main Subjects
Topics
Abstract AR
Y)Q/3+1 -$QE;:) -$*>1"+1 2"3,51 #KU V.$E: W@ 30 15 !.QS1 C1T -$,./7 2"3,.: NP.@ – D.J -4KLH4 67 30-0.8 `$): -$bQ)?+1 D.)E+1 -,8)@ B)0*;>1 ")S .(-$*F+1 -_.?3+1 `4 %20 10 ^ 5 -%KZ4 [?H: 6\8]+1 ')*, -)$*>1"+1 2"3,511 8$A.< c.$S W$$/< W< .6+1K;+1 '*, W@ 30 15 !.QS1 C1T -,./7 2"3,5 .A/W@ 7.6-0.8 .NP.)?+1 2K)fb+1 #")3< -)$H/;: .)$9%8e< 6)*F+1 D.)E+1 hK);b4 c.)$S W)< .d)e3+1 -)$H/< X1"=;)@.: -),./0+1 -)$F$4.H%# 67 2#.%D [9?% -$*>1"+1 2"3,51 -Q@1K: 6\8]+1 YQ/3+1 -_.?4 `4 -$QE;+1 -9?I 67 2#.%j+1 a1 kP.;H+1 C8lM1 .-),./0+1 8)QS m)@K;4 N)$*/< -),./0+1 no)QI1 -,8)@ 6,.])f+1 D.)E+1 hK);b4 6)7 2#.)%D 6)*F+1 D.E+1 hK;b4 -)+#.]3+1 Oo)> `)4 6)*F+1 D.)E+1 hK);b3: p)9H;+1 `F3% 1.516 0.00286 U1.08 0.142 %int 0.086 0.165 r / R g = g + - e - sTK)3H+1 C1p)9H< -)I!./4 B)3< .6,.)/0+1 #K)3]*+ NP.)@ D.J X.LI 67 D.E+1 hK;b4 8%"/;+ C.R.9 -9))?I Y))4 .))l/:.Q< C8))lM1 -))$9%8e;+1 C.))I.$9+1 Y))4 .-$,./0+1 2"3,o+ -$3$3t;+1 C.:.?b+1 67 N%#K3+1 X1"=;@5
Abstract EN
The effects of vertical cooling internals on the gas hydrodynamics was studied in gas-liquid system (bubble columns) for column diameters, 15 and 30 cm in the absence and presence of internals (the % occluded area by internals 5, 10, and 20 %).
The superficial gas velocity was varied in the range 0.8-30 and 0.8-7.6 cm/s for 15 and 30 cm column diameters respectively.
The effect of internals on the bubble dynamics in columns was assessed using the electroresistivity probe technique.
The overall gas holdup is measured experimentally by bed expansion technique.
The experimental results show that the increased in percentage coverage of cross sectional area by internals causes an increase in the overall gas holdup values, gas holdup radial profiles, bubble rise velocity, bubble frequency and reduce average bubble diameters.
Correlations have been used for the estimation of the gas holdup in gasliquid system bubble column.
The overall gas holdup can be easily predicted from 1.516 0.
00286 U1.
08 0.142 %int 0.086 0.
165 r / R g = g + - e - .Comparison of the model predictions with the experimental data shows agreement with error 0.
017 which ensure the reliability and confidentiality of the adopted the correlations to be used in further designation and scale-up purposes.
American Psychological Association (APA)
Abd al-Razzaq, Burhan Sadiq. 2014. Fluid dynamic in bubble columns with heat exchanger internals. Engineering and Technology Journal،Vol. 32, no. 11A, pp.2815-2829.
https://search.emarefa.net/detail/BIM-516325
Modern Language Association (MLA)
Abd al-Razzaq, Burhan Sadiq. Fluid dynamic in bubble columns with heat exchanger internals. Engineering and Technology Journal Vol. 32, no. 11A (2014), pp.2815-2829.
https://search.emarefa.net/detail/BIM-516325
American Medical Association (AMA)
Abd al-Razzaq, Burhan Sadiq. Fluid dynamic in bubble columns with heat exchanger internals. Engineering and Technology Journal. 2014. Vol. 32, no. 11A, pp.2815-2829.
https://search.emarefa.net/detail/BIM-516325
Data Type
Journal Articles
Language
English
Notes
Text in English ; abstracts in English and Arabic.
Record ID
BIM-516325
