lib.ALS1983 module¶
- class lib.EoS.Cubic.ALS1983.ALS1983(T, P, mezcla, **kwargs)[source]¶
Bases:
CubicAdachi modification to SRK cubic equation of state [1]
\[\begin{split}\begin{array}[t]{l} P = \frac{RT}{V-b_1}-\frac{a}{\left(V-b_2\right)\left(V+b_3\right)}\\ a = A\frac{R^2T_c^2}{P_c}\alpha\\ b_1 = B_1\frac{RT_c}{P_c}\\ b_2 = B_2\frac{RT_c}{P_c}\\ b_3 = B_3\frac{RT_c}{P_c}\\ \alpha^{0.5} = 1 + m\left(1-\sqrt{T_r}\right)\\ m = 0.4070 + 1.3787\omega - 0.2933\omega^2\\ \end{array}\end{split}\]The paper give generation correlation for A, B₁, B₂ and B₃
\[\begin{split}\begin{array}[t]{l} B_1 = 0.08974 - 0.03452\omega + 0.0033\omega^2\\ B_2 = 0.03686 + 0.00405\omega - 0.01073\omega^2 + 0.00157\omega^3\\ B_3 = 0.154 + 0.14122\omega - 0.00272\omega^2 - 0.00484\omega^3\\ A = 0.44869 + 0.04024\omega + 0.01111\omega^2 - 0.00576\omega^3\\ \end{array}\end{split}\]- _GEOS(xi)[source]¶
Definition of parameters of generalized cubic equation of state, each child class must define in this procedure the values of mixture a, b, delta, epsilon. The returned values are not dimensionless.
- Parameters:
- xilist
Molar fraction of component in mixture, [-]
- Returns:
- parameterslist
Mixture parameters of equation, a, b, c, d
