1. Poster Presentation Session
November 2001
CREL Annual Meeting
CREL meeting, 15th November 2001

2. Hydrodynamics of 2D Gas-Liquid Reactors:
Posters presented by Peter Spicka
Hydrodynamics of 2D Gas-Liquid Reactors:
Experimental Study and CFD Simulations
Laboratory of Separation and Reaction Engineering Department of Chemical Engineering, University of Porto
Experimental Characterization of Gas-Liquid Column:
Effect of Nozzle Orientation and Pressure
CHEMICAL REACTION ENGINEERING LABORATORY
CREL meeting, 15th November 2001

3. CREL meeting, 15th November 2001
Peter Spicka
Education
1994 Eng. degree at Slovak Technical University in Bratislava
2001 PhD degree at University of Porto
Participation on European project ADMIRE
CREL
joined in April 2001
Research Focus
CARPT, CT experiments in multiphase columns
Trickle bed reactors filled with structured packing
CFD simulations - turbulence modeling, pressure effect
Experimental study 2D gas-liquid column, effect of structured packing, LDV, PIV, Imaging
CFD simulations effect of lift forces and turbulence on phase distribution
CREL meeting, 15th November 2001

4. CREL meeting, 15th November 2001
2D Gas-Liquid Column
Experiment & Simulations
LDV data
Experimental techniques
Pressure transducers
Imaging
BIV
LDV
Simulations
CFD simulations
Study of lift forces
Turbulence models
Euler/Euler Model
No mass transfer
Uniform bubble size
Neglected interfacial pressure drop
Column dimensions
(600  200  2) mm
Packing
Placed in diamond shaped structure at
porosity = 0.6
CREL meeting, 15th November 2001

5. CT & CARPT Results Effect of Pressure and Nozzle Orientation Objective
Study the sparger nozzle orientation effect on gas hold-up, liquid velocity and turbulence in gas-liquid column
Gas Holdup
Turbulent kinetic energy
Experiment
6” stainless steel column
Cross-sparger, two nozzle orientations: facing upward and downward
Air-water system
Pressure: 1 bar and 4 bars
UGS= 5 cm/s (only CT) and 20 cm/s
CREL meeting, 15th November 2001

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