Example 8-5 Production of Acetic Anhydride with Heat Exchange (Variable Ta)   |POLVER05_0
d(X)/d(V) =     -ra/Fao     #
d(T)/d(V) =    (Ua*(Ta-T)+ra*deltaH)/(Fao*(Cpa+X*delCp))    #
d(Ta)/d(V) =   Ua*(T-Ta)/mc/Cpc   #
Fao =     .0376     #
Cpa =     163     #
delCp =     -9     #
Cao =     18.8     #
To =     1035     #
deltaH =     80770+delCp*(T-298)     #
ra =     -Cao*3.58*exp(34222*(1/To-1/T))*(1-X)*(To/T)/(1+X)     #
Ua =    16500    #
mc =   .111   #
Cpc =   34.5   #
V(0)=0
X(0)=0
T(0)=1035
Ta(0)=1250
V(f)=1e-3