Chapter 12 : Compartment Models

Example 12.1 page no : 289

In [1]:
# Variables
tg = (8.*(9.-6)*(0.5)+11.*(15.-9)*(0.5))/((15.-6)*0.5)              #sec
tl = 40.                                                            #sec
vg = 0.5
vl = 0.1;

# Calculations
Vg = tg*vg;
Vl = tl*vl;
G = Vg*10
L = Vl*10
Stagnant = (100-G-L)

# Results
print " fraction of gas is %.f %%"%(G)
print " fraction of liquid is %.f %%"%(L)
print " fraction of Stangnant liquid is %.f %%"%(Stagnant)

 fraction of gas is 50 %
 fraction of liquid is 40 %
 fraction of Stangnant liquid is 10 %

Example 12.2 page no : 290

In [3]:
# Variables
CAo = 1.;
XA = 0.75               #present
CA = 1-XA;

# Calculations
kt1 = (CAo-CA)/CA;
kt2 = 3*kt1;            #volume is reduced by 1/3
CA_unconverted = 1./(kt2+1);
XA = 1-CA_unconverted   #New XA after replacing the stirrer

# Results
print " New Conversion expected is %.1f %%"%(XA*100)

 New Conversion expected is 90.0 %
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