Cálculo de pontos de orvalho em misturas binárias com vaporização retrógrada dupla via otimização global
Keywords:
Vaporização retrógrada dupla, Curva de ponto de orvalho, Misturas binárias.Abstract
Vaporização retrograda dupla ́e um fenômeno termodinâmico que comumente surge na vizinhança de um ponto crítico de transição de fase de sistemas do tipo multicomponente. Em tais casos, o envelope de fases apresenta uma curva de ponto de orvalho
com um formato atípico, assemelhando-se a um “S”. A predição desse fenômeno ́e importante na simulação de diferentes processos da engenharia, incluindo a recuperação terciária de petróoleo. O presente trabalho mostra que o algoritmo PSO, equipado com uma técnica de polarização para problemas multimodais, ́e capaz de determinar de maneira robusta a ocorrência de vaporização retrograda dubla em onze misturas binárias previamente estudadas na literatura.
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