Petroleum Refining

Below you will find white papers on topics involving process control and automation.

What is Emissivity?

Submitted by Exergen

Emissivity is a surface property that determines how much radiation an object emits at a given temperature compared to a blackbody at the same temperature.

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What are your "Precision" Requirements?

Submitted by Corey Foster, Senior Automation Application Engineer

"Precision" is a term that needs to be broken down into several components including accuracy, repeatability, flatness, straightness, etc.

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How to Select Valve Actuators for Rotary Valves

Submitted by Jon Monsen, Ph.D.,

At times a process engineer must choose between a pneumatically or electrically actuated valve for a system. There are advantages to both styles, and it is valuable to have data available to make the best choice.

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