Chemical Engineering Consulting
In the program, an example from the field of nonlinear chemical dynamics is presented. Governing equation and reaction scheme can be found in G. Nicolis, Dynamique Chimique, Thermodynamique, cindoTetique et mdoTecanique statistique, Dunod, Paris 2005. We use the arc length continuation method to...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (58): Screenshot Application of the arc length continuation method in nonlinear chemical dynamics Download |
ChemProV is a tool used by chemical engineering students to solve material balance problems. The project is maintained by Washington State University. For more information on how to install ChemProV, please visit the project's website.
Platforms: Windows, Mac, Linux
License: Freeware | Size: 5 MB | Download (87): ChemProV Download |
The OptControlCentre (OCC) is an user-friendly software package for the optimization of dynamic systems in energy and chemical engineering. Optimization methods include SQP methods as well as a stochastic approach using Simulated Annealing.
Platforms: Windows, Mac, Linux
License: Freeware | Size: 4.45 MB | Download (62): OptControlCentre Download |
The control of both bottom and distillate compositions is achieved by using conventional two point feedback control (WoodandBerry1) and non-interacting control (WoodandBerry2). Because of coupling, conventional control has a poorer performance when compared to the non interacting control system....
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (44): Control of the Wood and Berry Distillation Column Using Simulink Download |
The program computes the tie lines, the operating and mixing points and the number of equilibrium stages using the Hunter and Nash graphical method of a liquid-liquid extraction problem. One feed of acetic acid (35 wt %) in water which flow rate = 1000 kg/hr is extracted using a solvent...
Platforms: Matlab
License: Freeware | Size: 30.72 KB | Download (44): Hunter and Nash Graphical Equilibrium Stage Method Download |
This is a nonlinear system of differential and algebriac equations, that describe the dynamics of a continuous bioreactor. The bioreactor simulates the production of ethanol through yeast fermentation. The model is described in:Z. K. Nagy, Model Based Control of a Fermentation Bioreactor using...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (52): Yeast Fermentation Bioreactor for Ethanol Production Download |
Two tanks in are disposed in series. The level of tank 2 must be controlled despite a sine wave disturbance in the flow F3. This is achieved by changing the flow rate F0 of liquid to tank 1. The tanks areas are A1 and A2. Flow equations depends on constants K1 and K2. A proportional control with...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (56): Level control of two tanks in series Download |
The programs compute the bifurcation diagram for the cubic map and a realistic population dynamics model. The value of parameter r, when the cycle of period three appears, is indicated. As expected, for higher values of r, we observe chaotic behaviour. Both models are given in the problems?...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (52): Bifurcation Diagram for the cubic map and a realistic model for population dynamics Download |
The five programs provided solve several process design problems. These examples were originally provided as applications of process design optimization by Edgar, Himmelblau and Lasdon in their excellent book entitled Optimization of Chemical Processes, McGraw-Hill International Edition, 2001....
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (48): Application of Optimization to the Study of Chemical Processes Download |
We use a batch column with four theoretical plates to separate a binary mixture of water and methanol at 1 bar. Temperature and concentration profiles versus time are obtained for a reflux ratio equal to 10. In addition, the total moles in the still and distillate are plotted versus time. This...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (52): Separation of a water-methanol mixture using a four stage batch distillation column Download |
We would like to rise water temperature with a heater. Oulet temperature must be equal to the set point temperature (80dlT-C). Proportional-Integral-Derivative (PID) control is used. Inlet water temperature is equal to 20dlT-C. Water flow is equal to 10 m3/hr. Tank volume is equal to 100 m3....
Platforms: Matlab
License: Freeware | Size: 40.96 KB | Download (45): Controlling the temperature of a tank filled with water using Simulink Download |
In the program, we obtain equilibrium constants, compressibility factors, molar volumes and densities using the Soave-Redlich-Kwong equation of state. We find the same results as those given by Henley and Seader in Equilibrium-Stage Separation Operations in Chemical Engineering, Wiley, 1981...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (46): Equilibrium Constants Computation using the Soave-Redlich-Kwong equation of state Download |
The program computes the composition of benzene, toluene and p-xylene versus time in all column plates. The steady state values are plotted versus the plate number for all three components. This MATLAB program is adapted from an example given in Chemical Engineering Dynamics by Ingham et al.,...
Platforms: Matlab
License: Freeware | Size: 40.96 KB | Download (45): Dynamics of a continuous distillation column for the separation of a mixture of Benzene, Toluene Download |
PID control over the exit raffinate composition (x5) of a five stages column is obtained by changing solvent flow rate (G). The set point is equal to 0.1. The model equations include backmixing effects. This problem is solved using Berkeley-Madonna in Chemical Engineering Dynamics, Ingham et al.,...
Platforms: Matlab
License: Freeware | Size: 30.72 KB | Download (45): A Five Stage Extraction Cascade with Backmixing and Control Download |
DWSIM is a Chemical Process Simulator for Windows, Linux and Mac. Built for the Microsoft .NET 2.0 and Mono Platforms and featuring a rich Graphical User Interface (GUI), DWSIM allows chemical engineering students and chemical engineers to better understand the behavior of their chemical systems...
Platforms: Mac
License: Freeware | Size: 14.9 MB | Download (82): DWSIM Download |
Gas absorption is a very ubiquitous unit operation in any chemical plant. It has in common with liquid-liquid extraction that there are two carrier streams and one solute to be partioned between them. Here, we use the McCabe and Thiele graphical method to study the separation of acetone from air....
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (44): Absorption of Acetone in Air Using Water Download |
We would like to rise water temperature with a heater. Oulet temperature must be equal to the set point temperature (80dlT-C). Proportional (P), Proportional-Integral (PI) and Proportional-Integral-Derivative (PID) control are used and the respective results are compared. Inlet water temperature...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (44): Temperature Control of a Water Tank Download |
It is desired for modern process systems to achieve optimal operation. However, operation at a pre-designed nominally optimal point may not necessarily be actually optimal due to realtime disturbances, measurement and control errors and uncertainties. Self-optimizing control aims to tackle this...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (44): Bidirectional Branch and Bound Solvers for Worst Case Loss Minimization Download |
The two programs computes residue curve maps for the methyl acetate and isopropyl acetate chemistries at atmospheric pressure. These calculations involve solving a complex system of differential algebraic equations (DAEs). This can be readily achieved using the built-in function of MatLab,...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (51): Residue Curve Map for Homogeneous Reactive Quaternary Mixtures Download |
DWSIM is a Chemical Process Simulator for Windows, Linux and Mac. Built for the Microsoft .NET 2.0 and Mono Platforms and featuring a rich Graphical User Interface (GUI), DWSIM allows chemical engineering students and chemical engineers to better understand the behavior of their chemical systems...
Platforms: *nix
License: Freeware | Size: 17.27 MB | Download (50): DWSIM Mono Edition Download |