Chapter 6 Empirical Model Identification
Check Your Reading Study Questions Thought Questions
The questions will be categorized according to the three key concepts in this chapter.
Experimental Method | Process Reaction Curve | Statistical Method |
Check Your Reading |
Solidify the Concepts |
6.1 Why do practicing engineers often use empirical models and not always develop fundamental models? |
6.2 To apply the process reaction curve (graphical) method, the process response must be... |
Process Reaction Curve |
6.3 What is the major deficiency in process reaction curve Method I? |
Process Reaction Curve |
6.4 What was the basis for selecting the times to be at 28% and 63% of the total change in Method II? |
Experimental Method |
6.5 How can we determine how close to linear a process behaves? |
Experimental Method |
|
In a strictly linear system, the parameters do
not change with operating conditions.
(Kp = gain, t = time constant, and q = dead time) |
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6.6 When we determine a model using the statistical method, the parameters a and b are estimated by minimizing the sum of the squares between the data and model. What key result simplifies the solution? |
Statistical Method |