Computer-aided design of fluid mixing equipment : a guide and tool for practicing engineers / W. Roy Penney.

Format:

Book

Author/Creator:

Penney, W. Roy, author.

Language:

English

Subjects (All):

Mixing machinery.

Physical Description:

1 online resource (470 pages)

Edition:

1st ed.

Place of Publication:

Amsterdam, Netherlands ; Oxford, England ; Cambridge, Massachusetts : Elsevier, [2021]

Summary:

Computer-Aided Design of Fluid Mixing Equipment: A Guide and Tool for Practicing Engineers helps practicing design and operations engineers in solving their agitation and mixing problems.

Contents:

Front cover

Half title

Title

Copyright

Contents

Chapter 1 Introduction

Best Use of Methods Offered Here

Other Resources - Consultants, Vendors, Couses and Videos

Training Resources Available for Fluid Mixing Technology

Appendix 1.1: Fluid mixing courses

Appendix 1.2: Videos - YouTube and IndustrialMixing Handbooks

YouTube Videos

Acknowledgements

REFERENCES

Chapter 2 Impeller fundamentals

Dimensionless Parameters

Flow and Shear

Torque per unit volume

Impeller Pumping Efficiency

Power-producing Flow and Power-producing Shear

Radial Flow Impellers

EXAMPLE PROBLEM 2.1. Viscous Syrup Bending with a Side Entering Agitator in a 30 kgal Tank

Problem Statement

Problem Solution

EXAMPLE PROBLEM 2.2. Viscous Syrup Blending with Propeller Pump in a 30 kgal Tank

Chapter 3 Equipment selection

Introduction

"Economy of Scale" is Increasing the Size and Complexity of Agitators

A Historical Perspective

Seventy-Five Years Ago

Forty Years Ago

Twenty Years Ago (the mid-1990s)

Move Ahead to Today

Examples of Impeller Improvements from the 1970s to Today

Fundamentals for Effective Selection of Fluid Mixing Equipment

The Standard Geometry

EXAMPLE PROBLEM 3.1. Making Lye Soap in the Laboratory and in 55 gal (200 L) Drums

EXAMPLE PROBLEM 3.2. Selecting a Commercially Available Agitator

EXAMPLE PROBLEM 3.3. Impeller Selection/Power Requirements

Agitator Vendors: Websites and Videos

Chapter 4 Impeller power and pumping

Impeller Power Requirements

Standard Impeller Speeds

Variable Frequency Drives

Power Correlations for Standard Impeller Geometries

Impeller Pumping Correlations

EXAMPLE PROBLEM 4.1. P, Q, tto, tb

6BD in 3 m Fully Baffled Vessel.

"Economy of Scale" is Increasing the Size and Complexity of Agitators

EXAMPLE PROBLEM 4.3. Pumping Rate: HE-3 Impeller Compared to the Performance of the 6BD of Example 4.2

EXAMPLE PROBLEM 4.4. HE-3 Impeller Compared to the Performance of the 6BD of Example 4.3 at the Same N

Chapter 5 Vortex depth

Unbaffled Vessels

Rotating Liquid in a Cylinder (Solid Body Rotation of a Liquid in a Cylinder)

Comparison of Solid Body Rotation with an Earlier Correlation for Two-bladed Flat Paddles

Correlations for Vortex Depth for Unbaffled Vessels

Anchor Impeller in Unbaffled Vessel

EXAMPLE PROBLEM 5.1. Vortex Depth in an Unbaffled Vessel with an Anchor Agitator

Partially Baffled Vessels

EXAMPLE PROBLEM 5.2. Prediction of the Vortex Depth for the Experimental Conditions Utilized for the Data Presented in Fig. 5.3

Selection of Impeller, Baffling, and Geometry to Minimize to Have the Vortex Reach the Impeller

Power Decrease Due to Partial Baffling

Selection of Optimum Geometry to Maximize Vortex Depth at Minimum Impeller Power

Chapter 6 Tank blending

Experimental Methods

Visual Determination

Colorimetric Methods and Image Processing

Transient Measurement of Salt Concentration after Injection of a Volume of Tracer Salt Solution

Transient Measurement of Temperatures after Starting an Impeller in a Temperature Stratified Tank

Correlation for Predicting Blending Uniformity

Blending in the Transition and Laminar Flow Regime (NRe, ≈≤ 100)

Blend Time for Multiple Impellers

EXAMPLE 6.1. BATCH BLENDING WITH AN HE-3 IMPELLER

EXAMPLE PROBLEM 6.2. BLENDING WITH A HELICAL RIBBON IMPELLER

Chapter 7 Pipeline mixing

Selection and Design Considerations

Pressure Drop

Blending Considerations

Mixing Indices.

Revelations Regarding the Validity of Blending Correlations

COVr for Tee Mixers

Drop or Bubble Size for Turbulent Flow Pipeline Mixers

EXAMPLE PROBLEM 7.1. Solute/Solvent Dispersion-Example Problem 7.3 [3, p. 452-454]

EXAMPLE PROBLEM 7.2. COV for a Square Duct

EXAMPLE PROBLEM 7.3. COV for a Kenics HEM Static Mixer

EXAMPLE PROBLEM 7.4. Mixing Air and Ammonia Feeding a Nitric Acid Plant

Chapter 8 Heat transfer

About this Chapter

Options for Heat Transfer Surfaces

Design Methods for the Utility Side of Heat Transfer Devices

Heat Transfer Capability of Various Heat Transfer Surfaces

Most Effective Geometry for Internal Surface

Heat Transfer Coefficients

Transient Heat-up or Cooldown Time

EXAMPLE PROBLEM 8.1. Overall Coefficient and Heat-up Time for a Water Batch

EXAMPLE PROBLEM 8.2. Overall Coefficient and Heat-up Time for a Water Batch/Coil

EXAMPLE PROBLEM 8.3. Helical Ribbon h and Heat-up Time for a Viscous Batch

EXAMPLE PROBLEMS 8.4a-8.4d. Various Utility Side Configurations - Open Jacket with Agitation Nozzles, Dimpled Jacket and Multiple Internal Helical Coils

Chapter 9 Solids suspension

Solids Suspension Correlations

Off-bottom Suspension Correlations

Homework Problem 9.2: Solve Example Problem 10-3.4.3 from Brown et al. [3, p. 383]

HOMEWORK PROBLEM 9.3: Check the Experimental Results of Chowdhury's [2, p. 171] Run No. 258

Chapter 10 Dissolving solids

Just Suspended Speed

Correlation for Particle Mass Transfer Coefficient (k)

Predictive Methods for Determining Particle Dissolving Time

EXAMPLE PROBLEM 10.1. Checking the Kulov Experimental Data for τ with the DesignMethod

EXAMPLE PROBLEM 10.2. Check Nienow and Miles' Experimental Dissolving Time Data with Correlational Results.

EXAMPLE PROBLEM 10.3. Dissolving Time Results for 3 mm Ice Cream Salt in a 1000 gal Vessel

Chapter 11 Gas-liquid dispersions

Impeller Selection

Industrial Importance of Gas-Liquid Mixing

What Will be Considered Here?

Back to the Fundamentals of Gas Dispersion in Agitated Vessels

Ungassed Power Requirement

Gassed Power Requirement

Impeller Flooding

Gas Holdup

Mass Transfer Coefficient

Gas Dispersion from the Vessel Headspace

EXAMPLE PROBLEM 11.1. Check of one experimental data point from Saravanan and Joshi [12] to verify (1) the units of Qg are L/s and (2) the accuracy of the correlation

EXAMPLE PROBLEM 11.2. Oxygenate Johnson Creek at the Johnson Mill, Fayetteville, AR

EXAMPLE PROBLEM 11.3. Batch Stripping of Oxygen from a Water Batch using Sparged Nitrogen

References of General Reviews

Chapter 12 Liquid-liquid dispersions

Literature Survey

What is Needed to Design/Evaluate Agitators for L/L Dispersions

Design Methods

Which Phase is Dispersed?

EXAMPLE PROBLEM 12.1. Suspension of 50% Sulfuric Acid in Benzene

Correlations for Predicting Drop Size

Equilibrium Drop Size

Transient Drop Size Variation

Mass Transfer

EXAMPLE PROBLEM 12.2. Data Reduction for Dahhan's [22] Data - Run Number 5

EXAMPLE PROBLEM. 12.3. Agitated Vessel to Saturate Water with Chlorobenzene

Consideration of the Dispersed Phase Resistance

Final Comments Regarding L/L Dispersion in Agitated Vessels

Chapter 13 Compartmented agitated columns

Design Methods Included in This Chapter

Vendors

Explanation of Mechanical Details

Interstage Backmixing with Zero Forward Flow

Entrainment

Reactor Model Development.

EXAMPLE PROBLEM 13.1. Saponification of Ethylchloroacetate in a 10 Stage, Agitated, Compartmented Column

Input (Feed) Variables for the Chemical Reactor (See Attached Excel Program, Sheet 4)

Output (Effluent) Variables for the Chemical Reactor (SEE attached Excel Program, Sheet 4)

Geometry-related Parameters (Input and Calculated)

Flow-related Parameters

Agitation Parameters

Reaction Parameters

Historical Footnote

Chapter 14 Fast competitive/consecutive (C/C) chemical reactions

Where Do We Start? Two Examples of Feed Blending Problems

Step-By-Step Guide for Education About Handling C/C Reactions

Literature Review

Kinetics of C/C Fast Reactions

Review of the Literature Pertinent to Scale up

Scale up of Pipeline Mixers Used for Fast C/C Fast Reactions

Simple Guidelines

Final Thoughts and Recommendations

BOOKS AND REVIEW PAPERS

KINETICS OF C/C FAST REACTIONS

SCALE UP OF C/C FAST CHEMICAL REACTIONS

Chapter 15 Scale up

Scale up of Process Results in Agitated Vessels

Scale-up Analysis Using Geometrical Similarity

EXAMPLE PROBLEM 15.1. Making Wallpaper Paste in 4 L and 200 L Vessels

EXAMPLE PROBLEM 15.2. Scale down of Example Problem 11.2-Aeration of Johnson Creek

EXAMPLE 15.3. Heat Transfer in Pigment Binder Reactors

EXAMPLE PROBLEM 15.4. Scale up of the Pigment Binder Reaction to Handle Feed Blending

EXAMPLE PROBLEM 15.5. Scale up of the APG Reactor from 1 L to 40,000 L

EXAMPLE PROBLEM 15.6. Scale Down of a 0.4mDiameter L-L Static Mixer Required to Satisfy the Requirements of Example 2 from Streiff et al. [17]

Original Problem Statement

EXAMPLE PROBLEM 15.7. Scale up of the Third Bourne Reaction in a Semibatch Agitated Reactor.

EXAMPLE PROBLEM 15.8. Scale up of a StaticMixer Reactor for the Fourth Bourne Reaction from 1/8 to 1 diameter.

Notes:

Includes index.

Description based on print version record.

Description based on publisher supplied metadata and other sources.

ISBN:

9780128189764

0128189762

OCLC:

1265460892