We ask Russ:
How does one Test Dynamic Models?
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
...We ask Russ:
How does one develop First-Principles Dynamic Models numerically?
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.
- Inventory - Decide the inventory that ...
We ask Russ:
What are the pros for first-principles models?
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
...We ask Russ:
What are the pros for empirical models?
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
...We ask Russ:
Why use phenomenological models based on first principles over data-based modeling options?
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
...We ask Russ:
What are some of the benefits of dynamic simulation over steady state simulation?
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
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