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APC Background

The papers provided in this section have been written by prominent specialists in the field of APC and its application to industrial processes and submitted to APC-network.com for publication. They provide the users with a background knowledge of the relevant technology. The copyright for these papers belong to the authors and any authorisation to quote or use of the contents should be addressed direcly to the authors.


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APC Background
A View From The Future
Andy Chatha, President Automation Research Company, Dedham, MA, NPRA, 1998 Computer Conference

Coming IT & Automation Unification, ...
A View from the past
Thomas Stout, Founder and First President Profimatics, Northridge, CA

Fifty years ago,...
A View From the TOP
Robert H. Campbell, Chairman & CEO Sunoco Inc., Philadelphia, PA, NPRA Computer Conference, 15-18 November, 1998

Eighteen days ago when John Glen and his travelling companions were ...
Advanced Control Smorgasbord
Gregory K. McMillan, Terrance L. Blevins and Willy K. Wojznis

By the time many of us were being assigned to our first electronic control room projects in the 70s, some very smart engineers had already developed ways to effectively exploit PID controllers. Relative-gain arrays and simple decoupling of the controller output were used to analyze and deal with interaction on a steady-state gain basis. The outputs from PID controllers, with a constraint variable defining its process variable, were sent to a signal selector to form an override control scheme to maximize or minimize a manipulated variable.
Advanced Process Control, Optimization and Information Technology in the Hydrocarbon Processing
George S. Birchfield

FOREWORD I write this perspective, not as a practitioner, but from the point of view of a business researcher who has tried to benchmark progress, levels of application, critical success factors and the impact on business profitability. Perspectives will differ by company, by discipline and by individual. By no means, do I claim to have the absolutely correct perspective. However I would like to share my perspective in the hope of learning more from other points of view. A historical perspective does heighten respect for the true practitioners and their ongoing saga to master a rapidly advancing technological wave for the economic benefit of their companies and all stakeholders.
Computer Control Catalytic Cracker
Movie presented by Prof Manfred Morari, Computing in Chemical Award Address, CAST Division Banquet, November 2002 Movie excerpts created by Peter Rony May 5, 2003

This is a marvelous video that portrays the early use of punched cards, card-image telecommunications, sensors, and so forth to achieve computer control of a catalytic cracker. For us old timers, it is a hoot; for current ChE students, it is a sobering reminder of how far computer and communications technology have progressed since the early 1960s.
The Champion of Dynamic Matrix Control
By Paul Studebaker March 01, 1998

Digital computers gained widespread acceptance by the process industry during the 1970s and by the mid-'80s there were about eight major distributed control system(DCS) vendors in the U.S. and about 15 worldwide. DCS digital control was established and accepted as best practice by the process industries, and the new computers promised the ability to implement multivariable, multi-unit control.

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