John Wiley & Sons Aeration Control System Design Cover Taking an integrated, cross-disciplinary approach to this critical process, Aeration Control System .. Product #: 978-1-118-38998-0 Regular price: $111.21 $111.21 Auf Lager

Aeration Control System Design

A Practical Guide to Energy and Process Optimization

Jenkins, Thomas E.

Cover

1. Auflage August 2014
514 Seiten, Hardcover
Wiley & Sons Ltd

ISBN: 978-1-118-38998-0
John Wiley & Sons

Kurzbeschreibung

Taking an integrated, cross-disciplinary approach to this critical process, Aeration Control System Design comprehensively addresses the concept and system design of aeration activated wastewater treatment. Author Thomas E. Jenkins, a veteran in the field, covers complete treatment of aeration system controls, processes, and instrumentation and includes a theoretical and mathematical treatment of case histories, complete with design procedures and analysis methodology. Equations, charts, figures, and diagrams are used extensively throughout, making this a vital resource for civil/environmental engineers, mechanical engineers, and electrical/instrumentation engineers.

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Learn how to design and implement successful aeration control systems

Combining principles and practices from mechanical, electrical, and environmental engineering, this book enables you to analyze, design, implement, and test automatic wastewater aeration control systems and processes. It brings together all the process requirements, mechanical equipment operations, instrumentation and controls, carefully explaining how all of these elements are integrated into successful aeration control systems. Moreover, Aeration Control System Design features a host of practical, state-of-the-technology tools for determining energy and process improvements, payback calculations, system commissioning, and more.

Author Thomas E. Jenkins has three decades of hands-on experience in every phase of aeration control systems design and implementation. He presents not only the most current theory and technology, but also practical tips and techniques that can only be gained by many years of experience. Inside the book, readers will find:
* Full integration of process, mechanical, and electrical engineering considerations
* Alternate control strategies and algorithms that provide better performance than conventional proportional-integral-derivative control
* Practical considerations and analytical techniques for system evaluation and design
* New feedforward control technologies and advanced process monitoring systems

Throughout the book, example problems based on field experience illustrate how the principles and techniques discussed in the book are used to create successful aeration control systems. Moreover, there are plenty of equations, charts, figures, and diagrams to support readers at every stage of the design and implementation process.

In summary, Aeration Control System Design makes it possible for engineering students and professionals to design systems that meet all mechanical, electrical, and process requirements in order to ensure effective and efficient operations.

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
THOMAS E. JENKINS, PE, is an owner and President of JenTech Inc., where he provides consultation services to the wastewater treatment industry, including control systems, aeration systems, energy conservation, blower systems, and process equipment design. He also cofounded Energy Strategies Corporation in 1984. Mr. Jenkins is a Professor of Practice in the Department of Civil and Environmental Engineering at the University of Wisconsin-Madison. He also teaches water and wastewater treatment classes in the University's Department of Engineering Professional Development.