Oneeq4

Name: Oneeq4 - Azeotropic point calculation

Source: Shacham, M. and Kehat, E., 1972, Chem. Engng. Sci, 27, 2099

Reference/s Shacham, M. 1989, Chem. Engng. Sci., 44(7), 1495

Model: 1 implicit equation, indep. variable name: x

Lower difficulty level

Constraints: 0<=x<=1

Discontinuities: none in the feasible region

Initial range: xmin=0, xmax=1

Solved by Shacham, M., POLYMATH 5.1, build 19,Nov. 17, 2000

Model Eqs. Azeotropic point calculation |POLVER05_1

EXCEL FILE
f(x) = A*B*(B*(1-x)^2-A*x^2)/(x*(A-B)+B)^2+0.14845 #

TEXT FILE
A = 0.38969 #

POLYMATH FILE
B = 0.55954 #

x(min)=0, x(max)=1

Variable/function values Variable Value f(x)

x 0.5
1.8955E-01

Root Variable Value f(x)

x
0.691473747542323
-6.3838E-16

Function plot

Name:	Oneeq4 - Azeotropic point calculation
Source:	Shacham, M. and Kehat, E., 1972, Chem. Engng. Sci, 27, 2099
Reference/s	Shacham, M. 1989, Chem. Engng. Sci., 44(7), 1495

Model:	1 implicit equation, indep. variable name: x
	Lower difficulty level
	Constraints: 0<=x<=1
	Discontinuities: none in the feasible region
	Initial range: xmin=0, xmax=1

Solved by	Shacham, M., POLYMATH 5.1, build 19,Nov. 17, 2000

Model Eqs.	Azeotropic point calculation \|POLVER05_1
EXCEL FILE	f(x) = AB(B(1-x)^2-Ax^2)/(x*(A-B)+B)^2+0.14845 #
TEXT FILE	A = 0.38969 #
POLYMATH FILE	B = 0.55954 #
	x(min)=0, x(max)=1

Variable/function values	Variable	Value	f(x)
	x	0.5	1.8955E-01

Root	Variable	Value	f(x)
	x	0.691473747542323	-6.3838E-16

Function plot