The tuning of proportional-integral-derivative (PID) control loops was an important change at HollyFrontier’s Navajo Refinery in Artesia, N.M. Its hands-on, “mandraulic” culture was no longer cutting ...
David Greenfield, Media and Events Director, Automation World, interviews Igor Valuyev, Chief Electrical and Automation Engineer, New Belgium Brewery, about their cascading PID loops, process water ...
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