The differential equations are used in four modules of the STELLA model as
shown in Figs. 7.1, 7.2, 7.3, and 7.4. Each of the state variables is treated as a
concentration.
The results (Fig. 7.5) show a temporary decline in the concentration of the
enzyme as it gets locked up in the production of I. As the concentration of the
intermediate product declines—in response to the formation of the final product
F—the concentration of E increases again. As the substrate D gets depleted, no
more reactions take place and the system settles down to a set of equilibrium
concentrations for E and F. What is the continuous addition rate of D such that
withdrawal can be achieved for F at a rate of 0.1 units per time step?
Fig. 7.3
Fig. 7.4
7.1 Catalyzed Product Model
71
shown in Figs. 7.1, 7.2, 7.3, and 7.4. Each of the state variables is treated as a
concentration.
The results (Fig. 7.5) show a temporary decline in the concentration of the
enzyme as it gets locked up in the production of I. As the concentration of the
intermediate product declines—in response to the formation of the final product
F—the concentration of E increases again. As the substrate D gets depleted, no
more reactions take place and the system settles down to a set of equilibrium
concentrations for E and F. What is the continuous addition rate of D such that
withdrawal can be achieved for F at a rate of 0.1 units per time step?
Fig. 7.3
Fig. 7.4
7.1 Catalyzed Product Model
71