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Tuning and Control Loop Performance, Fourth Edition, 4th Edition by Gregory K. McMillan

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CHAPTER 4

EFFECT OF PROCESS DYNAMICS

4.1INTRODUCTION

Most engineers are not taught how equipment and piping design affect loop dynamics and performance. Many of the more demanding control applications are the result of poor process dynamics. Automation engineers can help bridge the gap and be able to intelligently discuss how plant design is affecting plant performance. The perspective, overview, recommendations, concepts, and relationships offered can provide the understanding and starting point for making the most of process knowledge. The result can be a better focus on process control and mechanical design improvements with the greatest impact on the bottom line.

4.1.1PERSPECTIVE

In general, an increase in back mixed volumes is beneficial ...

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