For many liquid mixtures. Equation (19) can be used to provide a crude estimate of excess enthalpy. A much better estimate is obtained if the UNIQUAC parameters are considered temperature-dependent. For example, suppose Equations (4-9) and (4-10) are modified to = + k /t  [c.87]

First card FORMAT(2012), control and execution codes for the regression program (all integer values and right adjusted).  [c.221]

First card FORMAT(5A4, 2X, 2A4, 3X, F7.3, 4X, F6.2, 4X, F6.2, 5X, F5.1, 4X, 2A3).  [c.224]

D. The next card supplies the solvation and association parameters, and the third parameter for either the UNIQUAC, NRTL, or Wilson equation, if this parameter is not being fitted.  [c.225]

E. The next data card contains information about the binary VLE data. FORMAT(2A3, 4X, 2A3, 4X, 12, 18X, 5(I1,1X)).  [c.225]

I. The next card gives the initial parameter estimates.  [c.227]

Multiple sets of binary VLE data may be correlated by continuing with another set of cards starting at part B. The last set of cards must be followed with a blank card to end the program.  [c.227]

Pure component parameters for 92 components, and as many binary interaction parameters as have been established, are cited in Appendix C. These parameters can be loaded from formated cards, or other input file containing card images, by subroutine PARIN.  [c.340]

PARIN loads values of pure component and binary parameters from formatted card images into labeled common blocks /PURE/ and /BINARY/ for a maximum of 100 components.  [c.341]

Formatted card images arranged as follows  [c.341]

Card 2 (same as card 1 but for a new IJ binary)  [c.342]




PARCH reads update information from formatted cards, or other input file containing card images. Input having existing component indices replace old data with those indices. Otherwise the new component data is added to the library, with the restriction that the total number of components is always less than or equal to 100.  [c.344]

Formatted card images arranged as follows  [c.344]

Second card FORMAT(8F10.2), control variables for the regression. This program uses a Newton-Raphson type iteration which is susceptible to convergence problems with poor initial parameter estimates. Therefore, several features are implemented which help control oscillations, prevent divergence, and determine when convergence has been achieved. These features are controlled by the parameters on this card. The default values are the result of considerable experience and are adequate for the majority of situations. However, convergence may be enhanced in some cases with user supplied values.  [c.222]

Third card FORMAT(8F10.2), size of increments to be used in central difference formula for calculating derivatives with respect to the independent variables.  [c.223]

Fourth card FORMAT(8F10.2), size of increments to be used in central difference formula for calculating derivatives  [c.223]

F. The next card supplies the VLB data reference (2 cards if IRF=1). FORMAT(15A4).  [c.226]

G. The next NN cards supply the VLB data. NN equals the number of experimental points. Bach card has one set of data. FORMAT(8F10.2).  [c.226]

H. The next cards provide estimates of the standard deviations of the experimental data. At least one card is needed with non-zero values. Units are the same as those of the VLE data. FORMAT(4f10.2,I2).  [c.227]

See pages that mention the term Corrater : [c.224]    [c.224]    [c.225]    [c.225]    [c.226]    [c.227]    [c.341]    [c.341]    [c.341]    [c.341]    [c.341]    [c.341]    [c.342]    [c.342]    [c.342]    [c.342]    [c.342]    [c.342]    [c.342]    [c.342]    [c.342]    [c.342]    [c.342]    [c.342]    [c.342]    [c.342]    [c.342]    [c.344]    [c.344]   
Standard Handbook of Petroleum and Natural Gas Engineering Volume 1 (1996) -- [ c.1312 ]