Plants tend to run longer in between turnarounds, or the period of time in which a plant is shut down for maintenance. These turnaround time intervals can be three, four, five, or even longer depending on the process and the industry. Emerson's Riyaz Ali, whom you may...
control valve
Control Valve Impact on Process Variability
The March/April edition of Intech magazine features an article by ModelingAndControl.com's Greg McMillan--Key design components of final control elements. The article is derived from Greg's new book, Essentials of Modern Measurements and Final Elements in the Process...
Control Valves in Process Uptime
OK, the folks in Emerson's Fisher valve division get pretty excited about control valves, but do you? Control valves, after all, have been around for a while: The concept of a control valve goes at least as far back as the bronze plug cocks used by the Romans in their...
Exceptional Process Control Opportunities Greg McMillan Presentation
ModelingAndControl.com's and Emerson technologist, Greg McMillan, will be presenting tomorrow at the ISA's Boston section. His presentation, Exceptional Process Control Opportunities describes how advances in measurements, valves, and control can make a dramatic...
Wireless versus Fieldbus Cost Comparison
At last week's Emerson Exchange, John Rezabek of ISP presented Wireless or Fieldbus? You might recall John from his columns in Control magazine and on the ControlGlobal.com site. He presented a cost comparison for a plant expansion considering Foundation fieldbus...
Refinery Solves Crude Unit Issues by Getting Back to Basics
Sometimes plants go through a revamp and things just don't work right. Loops that used to run fine in automatic mode now run in manual mode and require constant attention. I caught up last week with Emerson's James Beall, a principal process control consultant, whom...
A Few Tips to Optimize Your Process
I've featured quite a number of experts around Emerson over these past three years. Some categories, like Process Optimization, have more than 50 posts. There is quite a bit of wisdom mixed in all those posts. A few months ago, I was asked by Plant Engineering...
Guidance for Good Dynamic Control Loop Performance
If ever there were a need for dynamic control, it would be for the global bond and equity markets this week. Instead of tackling that global challenge, with today's post I'll highlight Emerson senior process control consultant Mark Coughran's Emerson Exchange...
Advice for Batch Reactor Temperature Control
Emerson's Mark Coughran has been busy sharing his process control expertise lately. His latest article, Improve Batch Reactor temperature control, appears in the June issue of Chemical Processing magazine. Mark describes three batch reactor temperature control cases...
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