In the cost optimization, the proposed function can perform the
enthalpic, exergetic, and profit optimizations in any combination of
the fixed conditions and the optimal objects. The enthalpic and
exergetic optimizations can determine the operating conditions with
the minimization of the input cost flows and themaximization of the
amount of products at the same time, and the profit optimization can
determine the operating conditions with the maximization of profit.
The profit optimization can bemore reasonable, because the purpose
of the system installation is to obtain more profit, and this analysis is
clearly the right answer for any combination.