Edwards / Harnby / Middleton Fluid Mixing II

A Symposium Organised by the Yorkshire Branch and the Fluid Mixing Processes Subject Group of the Institution of Chemical Engineers and Held at Bradford University, 3-5 April 1984
1. Auflage 2013
ISBN: 978-1-4831-3624-0
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 212 Seiten, Web PDF

Fluid Mixing II documents the proceedings of a symposium organized by the Yorkshire Branch and the Fluid Mixing Processes Subject Group of the Institution of Chemical Engineers and held at Bradford University, on 3-5 April 1984. The conference covers all aspects of mixing including the assessment of mixture quality, experimental and theoretical studies of mixing, chemical reaction and mass transfer, heat transfer, novel experimental techniques, scale-up and optimization. This volume contains 12 papers that deal with topics such as drawdown of floating solids into mechanically agitated vessels; effects of water/cement ratio, intensity of mixing, age and cement particle size and shape upon rheological properties of cement grouts with and without admixture; and mixing of non-absorbent solids with liquids. Other studies cover the flooding transition of a Rushton turbine operating in a gas-liquid system; power consumption in a three phase (liquid-solid-gas) mixing process in a stirred vessel; and an experimental technique for studying the rate of inter-zone mixing.

Autoren/Hrsg.

Edwards, M. F.

Harnby, N.

Middleton, J. C.

Inhaltsverzeichnis

1;Front Cover;1
2;Fluid Mixing II;2
3;Copyright Page ;3
4;Table of Contents;5
5;PREFACE;4
6;CHAPTER 1. THE DRAWDOWN OF FLOATING SOLIDS INTO MECHANICALLY AGITATED VESSELS;6
6.1;SYNOPSIS;6
6.2;INTRODUCTION;6
6.3;EXPERIMENTAL WORK;7
6.4;RESULTS;9
6.5;CONCLUSIONS;12
6.6;SYMBOLS;12
6.7;REFERENCES;13
7;CHAPTER 2. MIXING OF CEMENT-BASED GROUTS IN THE CONSTRUCTION INDUSTRY;20
7.1;INTRODUCTION;20
7.2;GROUT PROPERTIES;21
7.3;GROUT MIXERS;24
7.4;CONCLUSIONS;26
7.5;SYMBOLS USED;27
7.6;REFERENCES;27
7.7;ACKNOWLEDGEMENT;28
8;CHAPTER 3. SEGREGATION EFFECTS IN THE MIXING OF LIQUIDS WITH NON-ABSORBENT SOLIDS;34
8.1;INTRODUCTION;34
8.2;DISCUSSION;38
8.3;CONCLUSIONS;40
8.4;ACKNOWLEDGEMENTS;41
8.5;REFERENCES;41
8.6;NOTATION;42
9;CHAPTER 4. SUSPENSION OF SOLIDS WITH AERATED PITCHED BLADE TURBINES;54
9.1;SYNOPSIS;54
9.2;INTRODUCTION;55
9.3;EXPERIMENTAL;56
9.4;SINGLE PHASE SYSTEM;56
9.5;TWO PHASE SYSTEM LIQUID-SOLID;56
9.6;TWO PHASE SYSTEM GAS-LIQUID;57
9.7;GAS LIQUID SOLID SYSTEM;58
9.8;CONCLUSIONS;59
9.9;SYMBOLS USED;59
9.10;LITERATURE CITED;59
10;CHAPTER 5. THE FLOODING TRANSITION WITH GASSED RUSHTON TURBINES;64
10.1;ABSTRACT;64
10.2;INTRODUCTION;64
10.3;DEFINITION OF FLOODING;64
10.4;THEORETICAL CONTEMPLATION;65
10.5;EXPERIMENTAL TECHNIQUE;67
10.6;EXPERIMENTAL RESULTS- AND DISCUSSION;67
10.7;CONCLUSIONS;68
10.8;SYMBOLS USED;68
10.9;LITERATURE CITED;69
11;CHAPTER 6. POWER CONSUMPTION EFFECT IN THREE PHASE MIXING;74
11.1;INTRODUCTION;74
11.2;EXPERIMENTAL;76
11.3;MINIMUM SUSPENSION SPEED;77
11.4;RESULTS AND DISCUSSION;79
11.5;CONCLUDING REMARKS;84
11.6;SYMBOLS USED;85
11.7;REFERENCES;85
12;CHAPTER 7. A TECHNIQUE FOR STUDYING INTERVORTEX MIXING RATES IN A DUAL IMPELLER AGITATED VESSEL IN HIGH VISCOSITY FLUIDS;102
12.1;SUMMARY;102
12.2;INTRODUCTION;102
12.3;EXPERIMENTAL EQUIPMENT AND METHODS;102
12.4;THE DETERMINATION OF THE MIXING PARAMETERS;103
12.5;RESULTS AND DISCUSSION;104
12.6;CONCLUSIONS;106
12.7;ACKNOWLEDGEMENTS;106
12.8;NOMENCLATURE;106
12.9;REFERENCES;106
12.10;TABLES;107
13;CHAPTER 8. MINIMUM CONDITIONS FOR THE PRODUCTION OF LIQUID-LIQUID DISPERSIONS IN AGITATED TANKS;112
13.1;SYNOPSIS;112
13.2;INTRODUCTION;112
13.3;EXPERIMENTAL;115
13.4;RESULTS AND DISCUSSION;116
13.5;CONCLUSIONS;119
13.6;ACKNOWLEDGEMENTS;119
13.7;NOMENCLATURE;120
13.8;LITERATURE;121
14;CHAPTER 9. UTILITY OF NETWORKS OF INTERCONNECTED BACKMIXED ZONES TO REPRESENT MIXING IN A CLOSED STIRRED VESSEL;132
14.1;ABSTRACT;132
14.2;INTRODUCTION;132
14.3;NETWORKS OF INTER-CONNECTED BACKMIXED FLOW CELLS;133
14.4;FITTING PREDICTED RESPONSES TO EXPERIMENTAL OBSERVATIONS;138
14.5;OVERALL MIXING PERFORMANCE;142
14.6;SIMULATION OF ACID/ALKALI REACTIVE TRACERS;145
14.7;NOMENCLATURE;148
14.8;REFERENCES;149
15;CHAPTER 10. MIXING EFFICIENCIES AND ENERGY REQUIREMENTS OF VARIOUS MOTIONLESS MIXER DESIGNS FOR LAMINAR MIXING APPLICATIONS;152
15.1;ABSTRACT;152
15.2;INTRODUCTION;152
15.3;Conclusions;163
15.4;Acknowledgement;163
15.5;REFERENCES;164
15.6;Notation;166
16;CHAPTER 11. LOCAL AND AVERAGE MASS AND HEAT TRANSFER GENERATED BY PFAUDLER-TYPE IMPELLERS;182
16.1;SUMMARY;182
16.2;1. INTRODUCTION;182
16.3;2. EXPERIMENTAL;183
16.4;3. RESULTS;185
16.5;4. CONCLUSIONS;194
16.6;REFERENCES;195
16.7;SYMBOLS;195
17;CHAPTER 12. A STUDY OF LOCAL HEAT TRANSFER COEFFICIENTS IN AGITATED VESSELS;198
17.1;SYNOPSIS;198
17.2;INTRODUCTION;198
17.3;ELECTROCHEMICAL METHOD;199
17.4;EXPERIMENTAL EQUIPMENT AND PROCEDURE;200
17.5;RESULTS;201
17.6;CONCLUSIONS;207
17.7;NOMENCLATURE;208
17.8;REFERENCES;209