Read more
Informationen zum Autor CECIL L. SMITH, PHD, has over thirty-five years' experience in process control, his expertise encompassing every control technology being applied in industrial production facilities. In continuous processes, he has worked with oil refining, pulp/paper, power generation, and ore processing. In batch processes, he has experience with both single-product processes (such as PVC reactors and pulp digesters) and the multiproduct (flexible batch) processes that are the norm in specialty chemicals. His primary focus is on designing a control strategy for a process and then commissioning the controls; that is, the process aspects as opposed to systems aspects. He also develops and teaches continuing education courses for practicing engineers on various aspects of process control and instrumentation. Klappentext Practical troubleshooting advice that's easy to understand and easy to implement Practical Process Control shows you how to analyze and troubleshoot process control systems in process manufacturing plants. Easy to read and understand, the book stresses practical solutions that don't require complex mathematics. This book offers several advantages that you won't find in comparable texts. For example, the presentation is totally in the time domain--the word "Laplace" is nowhere to be found. In addition, the focus of the book is troubleshooting, not tuning. The author effectively demonstrates why tuning difficulties are almost always symptoms of other problems. By showing you how to recognize the clues, identify the root causes of the problem, and make needed corrections, you'll learn how to effectively troubleshoot problems before they mushroom into disasters. Practical Process Control gives you even more support in troubleshooting process control systems by... Focusing on the relationship of process control to steady-state process characteristics rather than to dynamic process characteristics Demystifying PID control equations by explaining them in the time domain Helping you develop and analyze process and instrument (P&I) diagrams and demonstrating why they are critical to troubleshooting Filled with real-world examples, the book enables engineers to easily implement the author's troubleshooting guidelines in order to ensure that their plants operate safely, efficiently, and economically. Zusammenfassung Practical Process Control (loop tuning and troubleshooting). This book differs from others on the market in several respects. First! the presentation is totally in the time domain (the word "LaPlace" is nowhere to be found). The focus of the book is actually troubleshooting! not tuning. Inhaltsverzeichnis Preface. Chapter 1: Introduction. 1.1. The Process Industries and Regulatory Control. 1.2. P&I Diagrams. 1.3. Regulatory Control Example. 1.4. Control Loop. 1.5. Example Process. 1.6. Cascade Control. 1.7. Summary. Chapter 2: Gain or Sensitivity. 2.1. Process Design versus Process Control. 2.2. What Do We Mean by "Process Gain" 2.3. Linear versus Nonlinear Processes. 2.4. Operating Lines and Gains from Process Tests. 2.5. Action. 2.6. Impact of Process Nonlinearities on Tuning. 2.7. Scheduled Tuning. 2.8. Heat Transfer Processes. 2.9. Vacuum Processes. 2.10. Summary. Chapter 3: Process Dynamics. 3.1. First-Order Lag and Time Constant. 3.2. Integrating Process. 3.3. Self-Regulated versus Non-Self-Regulated Processes. 3.4. Dead Time. 3.5. Measurement Issues. 3.6. Effect of Dead Time on Loop Performance. 3.7. Mixing. 3.8. Process Models. 3.9. Approximating Time Constants. 3.10. Ultimate Gain and Ultimate Period. 3.11. Damping. 3.12. Simple Performance Measures. ...
