ISSN:
1572-9567
Keywords:
equation-of-state calculations
;
polydisperse fluid
;
vapor/liquid equilibrium
;
variational approximation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A method is presented for approximate vapor/liquid equilibrium calculations using an equation of state. The method reduces the number of variables in the free-energy minimization problem by the introduction of suitably chosen additional constraints. It is based on a representation of a multicomponent fluid as a mixture of a small number of weakly polydisperse components. The approximation method can be used to accelerate sequences of vapor/liquid equilibrium calculations, such as are encountered in many engineering applications [plant design, hydrocarbon (oil/gas) reservoir simulation]. In realistic cases computing time has been reduced by up to 65%.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00500165
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