lib.Nasrifar module¶
- class lib.EoS.Cubic.Nasrifar.Nasrifar(T, P, mezcla, **kwargs)[source]¶
Bases:
CubicNasrifar-Moshfeguian cubic equation of state, [1]
This is a two parameter cubic equation of state with both parameters temperature dependent
\[\begin{split}\begin{array}[t]{l} P = \frac{RT}{V-b}-\frac{a}{V\left(V+b\right)+b\left(V-b\right)}\\ a = 0.497926\frac{R^2T_c^2}{P_c}\alpha\\ b = 0.094451\frac{RT_c}{P_c}\\ \\ \theta = \frac{T-T_{pt}}{T_c-T_{pt}}\\ a = a_c\left(1+m_a\left(1-\sqrt{\theta}\right)\right)^2\\ m_a = \sqrt{\frac{a_{pt}}{a_c}}-1\\ b = b_c\left(1+m_b\left(1-\theta\right)\right)\\ m_b = \frac{b_{pt}}{b_c}-1\\ \\ \frac{a_{pt}}{b_{pt}RT_{pt}} = 29.7056\\ \frac{T_{pt}}{T_c} = 0.2498 + 0.3359\omega - 0.1037\omega^2\\ \frac{b_{pt}}{b_c} = 1 - 0.1519\omega - 3.9462\omega^2 + 7.0538\omega^3\\ \end{array}\end{split}\]- _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
