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Magnetic resonance imaging for 3D-printed structured packings
Publikationstyp
Conference Presentation
Date Issued
2024-09-03
Sprache
English
Citation
16th International Conference on Gas–Liquid and Gas–Liquid–Solid Reactor Engineering, GLS-16: (2024)
Contribution to Conference
Structured packings are introduced as column internals for gas-liquid contacting to improve mass transfer and hydraulic parameters. The flow conditions within the column strongly depend on the design of the structured packings and correlate directly with the liquid holdup, mass-transfer rates, capacity, and pressure drop. The usually opaque columns prevent the direct optical measurement of parameters, such as the spatial distribution of the involved phases, thus impeding an evaluation and exploitation for the optimization of the design. To overcome this limitation, tomographic techniques can be utilized, which enable non-intrusive, temporally and spatially resolved measurements.
In this study, we use magnetic resonance imaging (MRI) to measure the flow and the spatial distribution of water and air in a column with structured packings. The measurements are performed with a novel and worldwide unique vertical MRI scanner at Hamburg University of Technology. Structured packings with a diameter of 54 mm and a total height of 1 m are studied. Several 3D-printed packing designs, optimized with CFD simulations are measured with varying gas and liquid velocities. The detailed measurements of gas-liquid hydrodynamics within structured packings might enable the validation of numerical simulations and provide a comparison to established X-ray tomography data.
In this study, we use magnetic resonance imaging (MRI) to measure the flow and the spatial distribution of water and air in a column with structured packings. The measurements are performed with a novel and worldwide unique vertical MRI scanner at Hamburg University of Technology. Structured packings with a diameter of 54 mm and a total height of 1 m are studied. Several 3D-printed packing designs, optimized with CFD simulations are measured with varying gas and liquid velocities. The detailed measurements of gas-liquid hydrodynamics within structured packings might enable the validation of numerical simulations and provide a comparison to established X-ray tomography data.
Subjects
MRI
Structured packings
Gas-liquid flow
DDC Class
600: Technology