J
James J. Downs
Researcher at Eastman Chemical Company
Publications - 12
Citations - 2806
James J. Downs is an academic researcher from Eastman Chemical Company. The author has contributed to research in topics: Fractionating column & Distillation. The author has an hindex of 6, co-authored 11 publications receiving 2394 citations.
Papers
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Journal ArticleDOI
A plant-wide industrial process control problem
James J. Downs,E.F. Vogel +1 more
TL;DR: In this article, a model of an industrial chemical process for the purpose of developing, studying and evaluating process control technology is presented, which is well suited for a wide variety of studies including both plantwide control and multivariable control problems.
Journal ArticleDOI
An industrial and academic perspective on plantwide control
James J. Downs,Sigurd Skogestad +1 more
TL;DR: In this article, the authors stress the importance of selecting the right plantwide control structure and the need for a formalized approach that can encompass the many issues that arise in plant-wide control design.
Journal ArticleDOI
Renovating the undergraduate process control course
TL;DR: The roles of simulation and laboratory experiments are highlighted, and alternative ways of teaching control in the future are described, including problem-based learning, case studies, and use of multimedia classrooms.
Journal ArticleDOI
Dividing wall column control: Common practices and key findings
Melissa M. Donahue,Bailee J. Roach,James J. Downs,Terrence L. Blevins,Michael Baldea,R. Bruce Eldridge +5 more
TL;DR: In this paper, the authors focus on DWCs as a ternary separation technology for hydrocarbon mixtures relevant to the chemical and refining industries and conclude that, although achieving stable DWC operation is certainly possible, the development of a comprehensive framework that incorporates (multiple and often conflicting) process operating objectives, and equipment and process constraints, into a transparent control strategy remains an open research question.
Book ChapterDOI
Distillation Control in a Plantwide Control Environment
TL;DR: The role of distillation columns as a unit operation that separates components usually makes the operation of the distillation column central to the control of component inventories within a process as discussed by the authors.