CALCULATION OF MULTIPHASE AND MULTICOMPONENT CHEMICAL EQUILIBRIUM USING GENETIC AL GORITHM
This paper proposes a stochastic optimal technique based on Genetic Algorit hm ( GA ) for t he calculation of multip hase and multicomponent chemical equilibrium by minimization of Gibbs f ree energy1 Three aspect s are improved based on t he drawbacks of t he conventional GA. An alternative decimal encoding st rategy is adopted to enhance t he precision of calculation. A dynamic encoding met hod t hat can limit t he bounds of optimized variables wit hin t heir feasible regions is developed to cope wit h t he complex const raint s of t he problem. Finally , sequential search technique is applied to improve GA to approach global optima. It is shown t hrough t he calculation of complex chemical systems , in which non2ideal , multireaction and multip hase coexistence are simultaneously involved , t hat t he presented GA is general and efficient for t he addressed