Chemical Handbook

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...

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?...

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

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

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

MolMass is a function for calculating the molar weight of a substance given in form of a chemical formula.Function call: MM = MolMass(substance)Substance is a string of the chemical formula of a substance.Example: MM = MolMass('Fe2(SO4)3');Substance can also be a vector of substances opened by...


Platforms: Matlab

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

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

The purpose of this program is to simulate the permeation time lag in a polymer hollow fiber membrane with a dual mode sorption isotherm and the partially immobilized diffusion model.The program plot the 3D time lag with two models:1) concentration gradient as the driving force for diffusion2)...


Platforms: Matlab

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

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

DISOPE + MOMENTUM + PARTAN Algorithm to improve convergence of a nonlinear dynamic system.Study covers application for chemical process industries, robotics, genomics, etc.


Platforms: Matlab

From undergraduate chemistry, we know how to test whether a reaction is 0th, 1st, or 2nd order by plotting different transformations of the data, and inspecting which plot fits the best.This program does the same thing. It transforms the data using different values of the order, attempting to...


Platforms: Matlab

The Mole Package contains 3 mfiles and 1 matfile. molecules2 calculates molecular masses pertable provides data on the elements sym2an converts a chemical symbol to a valid atomic number (useful for molecules2 and pertable). atoms contains atomic number data.


Platforms: Matlab

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

A reaction object contains parameters that describe a chemical reaction scheme in terms of reagents, reaction steps, rate constants and equilibrium constants. The reaction can be evaluated to provide concentrations of species as a function of time and starting concentration. The reaction can also...


Platforms: Matlab

SWF Embed is a simple developer-centered module for working with Macromedia Flash-based content. It provides the necessary hooks for adding Flash content on the server-side, as well as the necessary javascript and jQuery for working with the Flash on the client-side.Developers, get started by...


Platforms: PHP

An experimental module to enable true private downloads for Drupal 6.If you simply require .htaccess protection read the handbook page here:Restrict specific folders from public download (via .htaccess)Drupal Handbook - http://drupal.org/node/540754Or try one of the following private downloads...


Platforms: PHP

Taxonomy Sifter is a Drupal module that provides a block with terms which any or all selected must apply to a node for it to be listed when viewing a taxonomy term page, e.g. taxonomy/term/... The vocabularies used in the block is configurable.Read the module's handbook page for more...


Platforms: PHP

Note: I am deprecating this module. I may separate out useful or unique functionality of this module into a API using a separate module. In the mean time, great alternatives such as skinr and sweaver. Drupal 7's color module improvements will offer many improvements.Color.module NG is a solution...


Platforms: PHP