to main test pageComprehensive examples for this procedure can be found
in the book of J. Hagen, Chemische Reaktionstechnik. The principle of the
procedure is to chose a stepwise set of mounting conversion values (U =
0.1;0.2;0.3;.....0.9;1.0) then calculate the temperature for each conversion
step with the adiabatic temperature rise formula, then calculate the rate
constant k(T) with the Arrhenius equation, then calculate the space time with
the well known 'Integral du/r(U,T)'-formula. You see: that is the same matter
as the graphical method in the 1/r(U,T)-plot !!
In
the case of an adiabatic STR you get for instance the values of the
temperatures in dependance of elapsed time (in the table following from the
procedure mentioned above). You can visualize that very good with the
simulation of the adiabatic stirred tank reactor ( see a snapshot : the
light blue curve - not very well visible - represents the temperature
plot).
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