Russ' Response:

Yes!  It is very useful for some economic, operational, and control evaluations. Environmental vagaries would include continually drifting raw material

Russ' Response:

Calibrate means to adjust coefficient values. In process instruments calibration usually means to adjust the zero and span knobs to convert the sensor response to the measurement (for instance conductivity to conce

Russ' Response:

Test means to review the model predictions (output values) with both data and logical expectations.  If your model outputs adequately match the process data and expectations over a wide range of operating conditions, then you

Russ' Response:

Here are eight steps in developing a dynamic model. Details and examples can be accessed under the Modeling/Simulation menu on my web site, www.r3eda.com.

1. Inventory - Decide the inventory that
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Russ' Response:

Earlier I shared that I typically classify models as empirical or phenomenological.

In phenomenological models, the mathematical functions are grounded in a mechanistic relation. These models could be termed rigoro

Russ' Response:

I would broadly classify models as empirical or phenomenological.  

Empirical models are developed by matching flexible mathematical functions to data.  The functions might be neural networks, or classic statistical power

Russ' Response:

I would broadly classify models as empirical or phenomenological.

Empirical models are developed by matching flexible mathematical functions to data.  The functions migh

Russ' Response:

Traditionally, process design uses steady state (SS) simulation, and it serves its purpose well.  Most analysis of processes and textbook instruction on how processes work use SS r