What is Taking So Long?
Estimates of the savings from control technology like dynamic matrix control can save large refineries from $1.5 to $10.5 million a year. It is also generally recognized that implementing advanced process control technology can result in significant operating savings, so why hasn’t everyone already used this technology?
That is the premise of Dave Harrold’s article in the May issue of Control magazine, “What is Taking So Long?” (147KB PDF) Emerson’s Terry Blevins lends his considerable experience to the article discussing valve positioners and techniques to eliminate tuning problems.

