On the experimental investigation of gas-liquid flow in bubble columns using ultrafast X-ray tomography and radioactive particle tracking

2017 ◽  
Vol 170 ◽  
pp. 320-331 ◽  
Author(s):  
Salar Azizi ◽  
Ashutosh Yadav ◽  
Yuk Man Lau ◽  
Uwe Hampel ◽  
Shantanu Roy ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Liquid Flow ◽  
Particle Tracking ◽  
Bubble Columns ◽  
X Ray ◽  
Radioactive Particle Tracking ◽  
Radioactive Particle ◽  
Gas Liquid Flow

Experimental investigation of solid particles flow in a conical spouted bed using radioactive particle tracking

AIChE Journal ◽  
2015 ◽  
Vol 62 (1) ◽  
pp. 26-37 ◽  
Author(s):  
Laurent Spreutels ◽  
Benoit Haut ◽  
Robert Legros ◽  
Francois Bertrand ◽  
Jamal Chaouki
Keyword(s):  
Experimental Investigation ◽  
Particle Tracking ◽  
Solid Particles ◽  
Spouted Bed ◽  
Radioactive Particle Tracking ◽  
Radioactive Particle

scholarly journals Experimental investigation of two-phase gas-liquid flow in microchannel with T-junction

2017 ◽  
Vol 159 ◽  
pp. 00004 ◽  
Author(s):  
German Bartkus ◽  
Igor Kozulin ◽  
Vladimir Kuznetsov
Keyword(s):  
Experimental Investigation ◽  
Liquid Flow ◽  
Two Phase ◽  
Gas Liquid Flow

Scale Effects on Fluidized Bed Hydrodynamics

2005 ◽  
Vol 3 (1) ◽  
Author(s):  
Rachid Mabrouk ◽  
Ramin Radmanesh ◽  
Jamal Chaouki ◽  
Christophe Guy
Keyword(s):  
Fluidized Bed ◽  
Particle Tracking ◽  
Fluidized Beds ◽  
Fiber Optic ◽  
Scale Effects ◽  
Scale Up ◽  
Radial Profile ◽  
Radioactive Particle Tracking ◽  
Industrial History ◽  
Radioactive Particle

Industrial history is full of events related to scale-up challenges. Failure at the scale-up stage is no longer surprising. Engineers and scientists have been trying to gather all the key parameters for decades, but, unfortunately, there are still no exact and well-established rules ensuring an accurate transition from one scale to another. Even the minimum lab-scale fluidized bed is still undefined.In this work, the effect of bed diameter on gas-solid behavior is investigated in three fluidized beds, 152mm, 78mm, and 50mm in diameter, in which the conventional scale-up rules are respected. The experiments were carried out using sand and alumina particles.The results were obtained and confirmed using fiber optic techniques and radioactive particle tracking, respectively. The results show that radial solid hold-up behavior on a small bed diameter scale is completely different from that on the intermediate bed diameter scale. The radial profile of solid hold-up on a small and very small bed diameter indicates an increase from a low value near the wall to a high value at the center at different heights from the distributor. By contrast, the opposite profile is observed on the intermediate bed diameter, similar to what is usually reported in the literature.

Sign in / Sign up

Export Citation Format

Share Document