Threeq5

Name: Threeq5 - Exothermic reversible reaction in a CSTR
Source: Gupta, Y.P. (1995). Ind. Eng. Chem. Res. 34, 536-544
Reference/s      
       
       
Model: 3 implicit equations, indep. variables X,T and h
  Lower difficulty level
  Constraints: 0<=X<=1, h>0
  Discontinuities: Undefined for h<=0
  Initial estimates: 1. X=0.5, T=500, h=0.5; 2. X=0.5, T=200, h=0.1;
  3. X=0.7, T=700, h=0.2 4. X=0.001, T=400, h=0.01
       
Solved by Shacham, M., POLYMATH 5.1, build 19, April 5, 2001
       
Model Eqs. Exothermic reversible reaction in a CSTR |POLVER05_1

EXCEL FILE 

f(X) = -0.16*X*F0/h+k1*(1-X)-k2*X #

TEXT FILE 

f(T) = 0.16*F0*T0/h-0.16*T*F0/h+5*(k1*(1-X)-k2*X) #

POLYMATH FILE 

f(h) = 0.16*F0-0.4*sqrt(h) #
  k1 = 3e5*exp(-5000/T) #
  k2 = 6e7*exp(-7500/T) #
  F0 = 1 #
  T0 = 300 #
  X(0)=0.5
  T(0)=500
  h(0)=0.5
       
Variable/function values Variable Value f(x)
  X 0.5 -2.5271E+00
  T 500 -7.5835E+01
  h 0.5 -1.2284E-01
  k1 13.62  
  k2 18.35  
  F0 1.00  
  T0 300.00  
       
Solution 1 Variable Value f(x)
  X 0.0171035426725 -2.1759E-17
  T 300.08551771340 -2.4702E-14
  h 0.16 0.0000E+00
  k1 0.0174157678841  
  k2 0.0008392344635