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Novel Techniques for Slurry Bubble Column Hydrodynamics Final Technical Report - 1999

Dudukovic, M.P.

Washington University, St. Louis

Table of Contents

Section 1
47kb		 Disclaimer ii
Abstract iii
Table of Contents iv
List of Figures vi
List of Tables xi
Executive Summary xii

1

 Introduction and Motivation 1
  1.1 Bubble Columns (BC)/Slurry Bubble Columns (SBC) 1
1.2 Focus of the Investigation 3

2

 Objectives 5
  2.1 Review of the Overall Objectives and Accomplishments 5
2.2 Accomplishments During Year 1 7
2.3 Accomplishments During Year 2 7
2.4 Objectives and Accomplishments for Year 3 8
Section 2
346kb

3

 Gas Holdup in High Pressure Bubble Columns by Computed Tomography (CT) 9
  3.1 Introduction and Objective 9
3.2 The High Pressure Experimental Facility 10
3.3 Results and Discussion 14
  3.3.1 Radial Gas Holdup Distribution 14
3.3.2 Cross-Sectional Average Gas Holdup 17
Section 3
32kb		 3.4 Comparison with Various Correlations in the Literature 21
3.5 Summary 26
3.6 Nomenclature 26
3.7 References 27
Section 4
1877kb

4

 Computer Automated Radioactive Particle Tracking (CARPT) in High Pressure Bubble Columns 29 
  4.1 Introduction 29
4.2 High Pressure Experimental Set-Up 29
  4.2.1 CARPT Facility 29
4.2.2 Experimental Applications 30
4.3 Results and Discussion 35
4.4 References 37
Section 5
65kb

5

 Monte Carlo Simulations of NaI(TI) Scintillation Detectors for Multiphase Flow Mapping and Visualization using CARPT 39
  5.1 Introduction 39
5.2 Research Objectives 40
5.3 Mathematical Description 41
  5.3.1 Determination of Solid Angle 42
5.3.2 Photon Interaction with Reactor Media and Detector Crystal 45
5.3.3 Computation of Simulated Counts 52
Section 6
208kb		 5.3.4 Optimization 53
5.4 Theoretical Validation 54
5.5 Experimental Validation 54
5.6 Conclusions 59
5.7 References 59
Section 7
411kb

6

 Fluid Dynamics in High Pressure Slurry Bubble Columns 60
  6.1 Introduction 60
6.2 Experimental Set-Up 60
6.3 Single Bubble Rise Velocity 61
6.4 Bubble Size Distribution 65
6.5 Theoretical Model and Numerical Method 69
  6.5.1 Liquid Phase Model 69
6.5.2 Gas Phase Model 69
6.5.3 Dispersed Particle Model 70
6.5.4 Coupling Among Individual Phase 71

6.6

 Results from Numerical Study 72
  6.6.1 Bubble Rising in Liquid-Solid Fluidized Medium 72
6.6.2 Particle Entrainment 72

6.7

 References 74
Section 8
1242kb

7

 Dynamic Simulation of Bubble Flow in Bubble Column by Eulrian/Eulerian Method 76
  7.1 Introduction 76
7.2 Ensemble Averaged Equations for Two-Phase Flow 78
7.3 Numerical Details 82
7.4 Large Structures in Bubble Columns 85
Section 9
764kb		 7.5 Effects of Gas Distributors 92
7.6 Quantitative Comparison with Experiments 92
7.7 Conclusions 99
7.8 Notation 99
7.9 Literature Cited 100

8

 Summary and Conclusions 103