石油化工应用
石油化工應用
석유화공응용
PETROCHEMICAL INDUSTRY APPLICATION
2012年
1期
61-65
,共5页
状态方程%改进%极性物质
狀態方程%改進%極性物質
상태방정%개진%겁성물질
equation of state%modification%polar substance
通过改进一个四次状态方程(Yun et al.,Fluid Phase Equilibria 187-188,275-298(2001))的参数计算方法,将其参数关联为物质临界参数和偶极矩的函数。维持了原方程简介形式并扩大了原方程的使用范围,使方程在计算极性物质汽液平衡及饱和热力学性质时不再需要特定常数,而是使用具有预测性的通式。
通過改進一箇四次狀態方程(Yun et al.,Fluid Phase Equilibria 187-188,275-298(2001))的參數計算方法,將其參數關聯為物質臨界參數和偶極矩的函數。維持瞭原方程簡介形式併擴大瞭原方程的使用範圍,使方程在計算極性物質汽液平衡及飽和熱力學性質時不再需要特定常數,而是使用具有預測性的通式。
통과개진일개사차상태방정(Yun et al.,Fluid Phase Equilibria 187-188,275-298(2001))적삼수계산방법,장기삼수관련위물질림계삼수화우겁구적함수。유지료원방정간개형식병확대료원방정적사용범위,사방정재계산겁성물질기액평형급포화열역학성질시불재수요특정상수,이시사용구유예측성적통식。
A new approach of calculating the parameters of a quartic equation of state(EOS) (Yun et al.,Fluid Phase Equilibria 187 -188,275 -298(2001)) was suggested.The parameters of the EOS were correlated to critical constants as well as dipole moment. Keeping the simple form of the equation,the modified quartic EOS was extended to both polar and non-polar substances without any substance-dependent empirical constants which are necessary in the original quartic EOS in calculations of polar substances.