  Thermodynamic simulation of chemical and metallurgical systems is the only
method to predict their equilibrium composition and is the most important
application of chemical thermodynamics. The conventional strategy of simulation
is always to find the most probable composition of the system, corresponding to
thermodynamic equilibrium. Traditional simulation methods do not account for
interactions within the chemical system. The Method of Bound Affinity (MBA) is
based on the theory that explicitly takes into account interactions between
subsystems of a complex chemical system and leads sometimes to essential
differences in simulation results. This article discusses peculiarities of MBA
application, exemplified by results for a complex system with a set of
subsystems.
