Madihally, S. V.
Sundararajan V. Madihally is a Professor in the School of Chemical Engineering at Oklahoma State University. He worked in the industry for 2 yr prior to obtaining a PhD in chemical engineering. He has published numerous articles and proceedings related to his research in tissue regeneration, as well as novel educational paradigms in biomedical engineering. Recently, he published the second edition. of his textbook, Principles of Biomedical Engineering. Dr. Madihally has received numerous teaching and mentoring awards, including the AIChE Outstanding Advisor Award.
APC maintenance scheduling—Part 2
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.
APC maintenance scheduling—Part 1
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.
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