Jenkins Aeration Control System Design

A Practical Guide to Energy and Process Optimization
1. Auflage 2013
ISBN: 978-1-118-77768-8
Verlag: John Wiley & Sons
Format: EPUB
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 514 Seiten, E-Book

Learn how to design and implement successful aeration controlsystems
Combining principles and practices from mechanical, electrical,and environmental engineering, this book enables you to analyze,design, implement, and test automatic wastewater aeration controlsystems and processes. It brings together all the processrequirements, mechanical equipment operations, instrumentation andcontrols, carefully explaining how all of these elements areintegrated into successful aeration control systems. Moreover,Aeration Control System Design features a host of practical,state-of-the-technology tools for determining energy and processimprovements, payback calculations, system commissioning, andmore.
Author Thomas E. Jenkins has three decades of hands-onexperience in every phase of aeration control systems design andimplementation. He presents not only the most current theory andtechnology, but also practical tips and techniques that can only begained by many years of experience. Inside the book, readers willfind:
* Full integration of process, mechanical, and electricalengineering considerations
* Alternate control strategies and algorithms that provide betterperformance than conventional proportional-integral-derivativecontrol
* Practical considerations and analytical techniques for systemevaluation and design
* New feedforward control technologies and advanced processmonitoring systems
Throughout the book, example problems based on field experienceillustrate how the principles and techniques discussed in the bookare used to create successful aeration control systems. Moreover,there are plenty of equations, charts, figures, and diagrams tosupport readers at every stage of the design and implementationprocess.
In summary, Aeration Control System Design makes itpossible for engineering students and professionals to designsystems that meet all mechanical, electrical, and processrequirements in order to ensure effective and efficientoperations.

Autoren/Hrsg.

Jenkins, Thomas E.

Inhaltsverzeichnis

Preface xi
Acknowledgments xiii
List of Figures xv
List of Tables xxi
1 Introduction 1
1.1 Basic Concepts and Objectives 2
1.2 Safety 9
1.3 The Importance of an Integrated Approach 10
1.4 Importance of Operator Involvement 13
1.5 The Benefits of Successful Aeration Process Automation 14
Example Problems 19
2 Initial System Assessment 21
2.1 Define Current Operations 24
2.2 Evaluate Process and Equipment 37
2.3 Benchmark Performance 40
2.4 Estimate Potential Energy Savings and Performance Improvement 42
2.5 Prepare Report 45
Example Problems 47
3 Aeration Processes 49
3.1 Process Fundamentals 49
3.2 Loading Variations and Their Implications 68
3.3 Process Limitations and Their Impact on Control Systems 70
Example Problems 74
4 Mechanical and Diffused Aeration Systems 77
4.1 Oxygen Transfer Basics 78
4.2 Types of Aerators 87
4.3 Savings Determinations 106
Example Problems 111
5 Blowers and Blower Control 113
5.1 Common Application and Selection Concerns 114
5.2 Positive Displacement Blowers and Control Characteristics 134
5.3 Dynamic Blowers 143
Example Problems 157
6 Piping Systems 161
6.1 Design Considerations 162
6.2 Pressure Drop 178
6.3 Control Valve Selection 182
Example Problems 187
7 Instrumentation 191
7.1 Common Characteristics and Electrical Design Considerations 192
7.2 Pressure 202
7.3 Temperature 205
7.4 Flow 209
7.5 Analytic Instruments 216
7.6 Motor Monitoring and Electrical Measurements 224
7.7 Miscellaneous 226
Example Problems 230
8 Final Control Elements 233
8.1 Valve Operators 234
8.2 Guide Vanes 238
8.3 Motor Basics 239
8.4 Motor Control 247
8.5 Variable Frequency Drives 251
Example Problems 259
9 Control Loops and Algorithms 261
9.1 Control Fundamentals 264
9.2 Dissolved Oxygen Control 280
9.3 Aeration Basin Air Flow Control 287
9.4 Pressure Control 288
9.5 Most-Open-Valve Control 291
9.6 Blower Control and Coordination 293
9.7 Control Loop Timing Considerations 302
9.8 Miscellaneous Controls 303
Example Problems 305
10 Control Components 309
10.1 Programmable Logic Controllers 310
10.2 Distributed Control Systems 323
10.3 Human Machine Interfaces 323
10.4 Control Panel Design Considerations 328
Example Problems 330
11 Documentation 333
11.1 Specification Considerations 335
11.2 Data Lists 338
11.3 Process and Instrumentation Diagrams 341
11.4 Ladder and Loop Diagrams 342
11.5 One-Line Diagrams 344
11.6 Installation Drawings 345
11.7 Loop Descriptions 347
11.8 Operation and Maintenance Manuals 348
Example Problems 349
12 Commissioning 351
12.1 Inspection 354
12.2 Testing 357
12.3 Tuning 361
12.4 Training 365
12.5 Measurement and Verification of Results 368
Example Problems 369
13 Summary 371
13.1 Review of Integrated Design Procedure 371
13.2 Potential Problem Areas 374
13.3 Benefits 375
Example Problems 375
Appendix A: Example Problem Solutions 377
Appendix B: List of Equations and Variables 447
Bibliography 485
Index 487

Über Autor(innen)

THOMAS E. JENKINS, PE, is an owner and President ofJenTech Inc., where he provides consultation services to thewastewater treatment industry, including control systems, aerationsystems, energy conservation, blower systems, and process equipmentdesign. He also cofounded Energy Strategies Corporation in 1984.Mr. Jenkins is a Professor of Practice in the Department of Civiland Environmental Engineering at the University ofWisconsin-Madison. He also teaches water and wastewater treatmentclasses in the University's Department of Engineering ProfessionalDevelopment.