Rhinehart, R. R.

Oklahoma State University, Stillwater, Oklahoma

R. Russell Rhinehart has experience in both industry (13 yr) and academics. He has served as the Head of the School of Chemical Engineering at Oklahoma State University, President of the American Automatic Control Council, and Editor-in-Chief of ISA Transactions. He is a Fellow of both ISA and AIChE, a CONTROL Automation Hall of Fame inductee, and has received numerous teaching and innovation recognitions. Dr. Rhinehart has authored textbooks on engineering statistics and nonlinear regression modeling, and engineering optimization. Now “retired,” his focus is on professional education and disseminating best-in-class techniques for modeling, optimization and control.

APC maintenance scheduling—Part 1

Mayo, S. M., Rhinehart, R. R., Madihally, S. V., Oklahoma State University

Advanced process control (APC) projects are supervisory programs that are often thought of as a layer of control above the base regulatory control for a process. The benefits of APC include increased throughput, reduced variation, constraint avoidance, etc., and can be combined to represent a daily economic-equivalent benefit for the application—the same anticipated benefit that led to the justification of the APC installation. Several articles report that after 18 mos–24 mos, more than half of APC installations are performing at either pre-installation levels or have been removed.1,2,3 Although diverse reasons exist for the performance shortfall, a primary reason is that the process characteristics drift from those that generated the controller model.