O'Reilly logo

Process Control: Modeling, Design, and Simulation by B. Wayne Bequette

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

1.6. Summary

You should now be able to formulate a control problem in terms of the following:

  • Control objective

  • Inputs (manipulated or disturbance)

  • Outputs (measured or unmeasured)

  • Constraints (hard or soft)

  • Operating characteristics (continuous, batch, semibatch)

  • Safety, environmental, and economic issues

  • Control structure (feedback, feed forward)

You should also be able to sketch control and instrumentation diagrams, and control block diagrams. In addition, you should be able to recommend whether a control valve should be fail-open or fail-closed.

The following terms were introduced in this chapter:

  • Actuator

  • Air-to-close

  • Air-to-open

  • Algorithm

  • Control block diagram

  • Control valve

  • Controller

  • Deadtime or time-delay

  • Digital

  • Fail-closed

  • Fail-open

  • Gain

  • Integrating ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required