Equilibrium

The toolbox draws:phase portrait,vector fieldLyapunov exponents,graphic solutionbifurcation diagram,iteration graphtime seriesIterated function.Are analyzed:fixed points, periodic and equilibrium,Hamiltonian systems,system stabilityFor systems in one, two or three dimensions in real variable.It...

Computation of the residue curve map for the MTBE chemistry is presented in the program. The equilibrium, taking place in the liquid phase, transforms methanol and isobutene into MTBE with n-butane being an inert component. Thermodynamic data can be found in the excellent paper by Niang and...

The program computes the liquid-liquid equilibrium diagrams for a type I ternary system based on the NRTL model. The ternary mixture: water-ethylacetate-acetone is an example of type I systems. The equilibrium diagram is obtained at a temperature of 288.15 K.


Platforms: Matlab

Uses Simulink to compute Vapor-Liquid Equilibrium diagrams for ethanol-water binary mixture. To compute activity coefficients, program uses Van-Laar Model. This mixture presents a positive azeotrope.


Platforms: Matlab

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

This GUI uses a constant relative volatility (alpha) to estimate the equilibrium curve. From there, the GUI uses the "McCabe and Thiele Graphical Method" to estimate the ideal number of plates in the column.A reference is provided in the GUI: look in Help/About.Comments, suggestions or bugs,...


Platforms: Matlab

Elastic network models (ENMs) have been shown to generate the dominant functional equilibrium motions of biomolecules quickly and efficiently. MAVEN simplifies ENM generation, allows for diverse models to be used, and facilitates useful analyses.


Platforms: Windows, Mac, Linux

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

The program shows how to plot figure 14.4 page 248 presented in T. L. Hill, An Introduction to Statistical Thermodynamics, Dover, New York, 1986. The Bragg-Williams approximation gives pressure-volume isotherms similar to those obtained using the van der Waals equation and it predicts first-order...


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

In the programs, we perform flash calculations of a mixture of hydrocarbons (ethane, propane, n-butane and n-pentane) using the Rachford-Rice equation. The phi-phi method, based on the SRK equation of state, is used to compute the equilibrium constants. We also find the True Vapor Pressure. All...


Platforms: Matlab

The program can determine the stability of AQM networks [1-3].The detailed algorithm is provided in Ref. [1].Copyright (C) Yang XIAO, Beijing Jiaotong Univ., Oct. 26, 2007Contact Add: Prof. Yang XIAOInstitute of Information ScienceBeijing Jiaotong UniversityBeijing 100044, China E-Mail:...


Platforms: Matlab

The programs compute the vapor-liquid diagram of an ethane-benzene mixture at 25dlT-C and 175dlT-C. This binary mixture exhibits a peculiar behavior because the volatilities of ethane and benzene are very different. We use the SRK equation of state to compute equilibrium constants. This problem...


Platforms: Matlab

Simulink implementation of a General Economic Equilibrium with 2 firms and 2 consumers. The model features two general level-2 masked s-functions. The first one implements the consumer, which maximizes his utility function, and the second implements the firm, which maximizes its profit.This was...


Platforms: Matlab

We solve a binary distillation problem using the solution of a Riccati equation. We find that four plates are needed to achieve the desired product purity. We also compute the number of stages with the classical approach by stepping off stages using the equilibrium curve and the operating line....


Platforms: Matlab

This is a simple class definition for an Antoine object to facilitate computation of pure component saturation temperatures and pressures. An object corresponding to a pure component is instantiated by specifying the Antoine parameters. Methods include the computation of saturation pressure,...


Platforms: Matlab

The MDApproachToEquilibriumThreePartitions program simulates a system of particles in two dimensions interacting via the Lennard-Jones potential. The program shows the particles in the box as a function of time once the partitions dividing the box into three sections are removed....


Platforms: Mac

The Real Option Valuation template combines a set of option pricing tools to quantify the embedded strategic value for a range of financial analysis and investment scenarios. Traditional discounted cash flow investment analysis will only accept an investment if the returns on the project exceed...


Platforms: Windows, Mac, Windows 8, Windows 7

It uses an optimization formulation of n-person non-co-operative games as described in the paper "An Optimization Formulation to Compute Nash Equilibrium in finite Games" presented by the author, available at http://ieeexplore.ieee.org/xpl/freeabs_all...rnumber=5397970. The method is capable of...


Platforms: Matlab

Performs polynomial fits that pass through a specified point (x0,y0).The application is to give a least squares fit that is 'exact' at a desired data point, e.g. an equilibrium point in a nonlinear equation of motion implemented via polynomial approximation. Discussion of theory included in...


Platforms: Matlab