Process Modeling, Simulation, and Control for Chemical EngineersThe purpose of this book is to convey to undergraduate students an understanding of those areas of process control that all chemical engineers need to know. The presentation is concise, readable and restricted to only essential elements. The methods presented have been successfully applied in industry to solve real problems. Analysis of closedloop dynamics in the time, Laplace, frequency and sample-data domains are covered. Designing simple regulatory control systems for multivariable processes is discussed. The practical aspects of process control are presented sizing control valves, tuning controllers, developing control structures and considering interaction between plant design and control. Practical simple identification methods are covered. |
Contents
Introduction | 1 |
Mathematical Models | 13 |
of Chemical Engineering Systems | 40 |
Copyright | |
18 other sections not shown
Other editions - View all
Process Modeling, Simulation, and Control for Chemical Engineers William L. Luyben No preview available - 1990 |
Process Modeling, Simulation, and Control for Chemical Engineers William L. Luyben No preview available - 1990 |
Common terms and phrases
Bode plots Calculate chemical engineering closedloop characteristic equation closedloop system closedloop unstable component composition condenser constant control system control valve controlled variable controller gain cooling water CSTR curve deadtime derivative distillation column dynamic Example feed feedback controller feedforward feedforward control FIGURE first-order lag flow rate frequency G(io gives GM(s HGM(z holdup input integration K₁ Laplace transformation linear liquid manipulated variable matrix multivariable Nichols chart Nichols plots nonlinear Nyquist plot openloop transfer function output parameters phase angle phase margin PI controller plane poles pressure drop proportional controller psig radians reaction reactor reboiler reflux drum root locus plot sampled-data sampling period second-order setpoint shown in Fig signal sketched in Fig stability steadystate gain step change SUBROUTINE t₁ tank temperature transmitter tray ultimate gain unit circle vapor x₁ Xset z transformation zero zero-order hold ίω τρ
