Design and fabrication of an indigenous confined bubble column: Investigation of single bubble ascent DOI Creative Commons
Sikandar Almani,

Muhammad Raheel Bawani,

Ubedullah Ansari

и другие.

Mehran University Research Journal of Engineering and Technology, Год журнала: 2025, Номер 44(2), С. 25 - 34

Опубликована: Апрель 9, 2025

In Chemical Process Industries (CPIs) like petrochemicals, biochemicals, and pharmaceuticals, gas-liquid interactions are crucial. Bubble columns preferred for their low maintenance, absence of moving parts, efficient mass transfer mixing. Liquid phases in such systems often shift from Newtonian to non-Newtonian behavior, as seen materials molasses, cooking oil, microalgae, affecting hydrodynamic parameters gas holdup, mixing time transfer. This study investigated single-bubble dynamics using an Indigenous confined bubble column (6 × 240 1140 mm³) water (Newtonian) CarboxyMethyl Cellulose (CMC) solutions (non-Newtonian) at 1 g/L, 2 3 g/L. The shadowgraphy technique measured size, terminal velocity, Reynolds number, count, trajectory. water, bubbles 1.48 mm, with sizes increasing 1.87 mm 2.08 g/L CMC due higher viscosity delaying detachment. Terminal velocity was 0.22 m/s dropping 0.11 m/s, 0.107 0.088 CMC, respectively. numbers declined sharply 335.2 31.5, 7.9, 3.5 solutions, reflecting viscosity's inverse effect. count increased 7 per frame 14, 15, 17 lower prolonged presence. Trajectories were zigzag but remained rectilinear across all concentrations. These findings highlight rheology's significant impact on which will be essential optimising process various CPIs.

Язык: Английский

CFD analysis of the intensification mechanism of bubble breakup by perforated plates in a bubble column DOI
Rongtao Wang,

Xianghua Guo,

Mengqin Zhan

и другие.

Chemical Engineering and Processing - Process Intensification, Год журнала: 2025, Номер 213, С. 110288 - 110288

Опубликована: Март 30, 2025

Язык: Английский

Процитировано

0
Design and fabrication of an indigenous confined bubble column: Investigation of single bubble ascent DOI Creative Commons
Sikandar Almani,

Muhammad Raheel Bawani,

Ubedullah Ansari

и другие.

Mehran University Research Journal of Engineering and Technology, Год журнала: 2025, Номер 44(2), С. 25 - 34

Опубликована: Апрель 9, 2025

In Chemical Process Industries (CPIs) like petrochemicals, biochemicals, and pharmaceuticals, gas-liquid interactions are crucial. Bubble columns preferred for their low maintenance, absence of moving parts, efficient mass transfer mixing. Liquid phases in such systems often shift from Newtonian to non-Newtonian behavior, as seen materials molasses, cooking oil, microalgae, affecting hydrodynamic parameters gas holdup, mixing time transfer. This study investigated single-bubble dynamics using an Indigenous confined bubble column (6 × 240 1140 mm³) water (Newtonian) CarboxyMethyl Cellulose (CMC) solutions (non-Newtonian) at 1 g/L, 2 3 g/L. The shadowgraphy technique measured size, terminal velocity, Reynolds number, count, trajectory. water, bubbles 1.48 mm, with sizes increasing 1.87 mm 2.08 g/L CMC due higher viscosity delaying detachment. Terminal velocity was 0.22 m/s dropping 0.11 m/s, 0.107 0.088 CMC, respectively. numbers declined sharply 335.2 31.5, 7.9, 3.5 solutions, reflecting viscosity's inverse effect. count increased 7 per frame 14, 15, 17 lower prolonged presence. Trajectories were zigzag but remained rectilinear across all concentrations. These findings highlight rheology's significant impact on which will be essential optimising process various CPIs.

Язык: Английский

Процитировано

0