The name is absent

3.6 Tripathi, Dominik and Chapman

Tripathi and Chapman [60] developed interfacial SAFT (or iSAFT) as an extension
of the first version of the density functional theory of Segura et. al. [62] for associating
fluids to polyatomic fluids. The excess free energy functional due to the formation
of chains is derived along similar lines as SAFT. Considering the polyatomic system
as a mixture of associating atomic fluids in the limit of complete association, the
free energy functional can be derived from Wertheim’s TPTl. The derivation of the
theory (for chains of m segments as shown in the figure 3.2) is briefly discussed below.

Figure 3.2: Schematic of the chain formed from m associating spheres.

The Helmholtz energy of a mixture of associating fluids can be written as

A∖p_a] = Aⁱ‰] + A^ex^‰} + A^ιsx'^aaso‰] ₊ A^EX"^att[p_a],
where various contributions to the free energy functional are: A^ld is the ideal gas free

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