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Ask Russ Rhinehart - How does one Test Dynamic Models? automation test systems multi-purpose dynamic simulation russ rhinehart Mar 14, 2025

 

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

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Ask Russ Rhinehart - How does one develop First-Principles Dynamic Models numerically? automation test systems multi-purpose dynamic simulation russ rhinehart Mar 07, 2025

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.

  1. Inventory - Decide the inventory that
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Ask Russ Rhinehart - What are the pros for first-principles models? automation test systems multi-purpose dynamic simulation russ rhinehart Feb 28, 2025

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

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Ask Russ Rhinehart - What are the pros for empirical models? automation test systems multi-purpose dynamic simulation russ rhinehart Feb 13, 2025

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

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Ask Russ Rhinehart - Why use phenomenological models based on first principles over data-based modeling options? automation test systems multi-purpose dynamic simulation russ rhinehart Jan 29, 2025

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

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Ask Russ Rhinehart - What are some of the benefits of dynamic simulation over steady state simulation? automation test systems multi-purpose dynamic simulation russ rhinehart Dec 04, 2024

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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