lib.PRSV2 module

class lib.EoS.Cubic.PRSV2.PRSV2(T, P, mezcla, **kwargs)[source]

Bases: PRSV

Peng-Robinson cubic equation of state with a modified dependence of temperature by Stryjek-Vera v.2 [1]

\[\begin{split}\begin{array}[t]{l} P = \frac{RT}{V-b}-\frac{a}{V\left(V+b\right)+b\left(V-b\right)}\\ a = 0.45747\frac{R^2T_c^2}{P_c}\alpha\\ b = 0.0778\frac{RT_c}{P_c}\\ \alpha^{0.5} = 1 + k\left(1-Tr^{0.5}\right)\\ k = k_0+\left[k_1+k_2\left(k_3-T_r\right)\left(1-\sqrt{T_r}\right) \right]\left(1+\sqrt{T_r}\right)\left(0.7-T_r\right)\\ k_0 = 0.378893+1.4897153\omega-0.17131848\omega^2+0.0196554\omega^3\\ \end{array}\end{split}\]

\(k_1\), \(k_2\) and \(k_3\) are parameters characteristic compound specific

_k(cmp, Tr)[source]

References