Number components

TABLE 16-15 Concentrations and h-Function Roots for Displacement Chromatography of a Mixture of M-1 Components Numbered in Order of Decreasing Affinity for the Stationary Phase (Adapted from Frenz and Horvath/ 1985). 

The choice of manufacturing technology for the fabrication of fiber-reinforced plastics or composite materials is intimately related to the performance, economics, and application of the materials. It also depends upon a number of factors, such as component numbers required, item complexity, number of molded surfaces, and type of reinforcement. 

Develop practical test program to demonstrate components ability to meet structural and performance criteria. Extent of such test program, if any, depends on economic value of component, number of units to be produced, consequences of failure, accuracy of structural analysis and design, margins of safety used in design, knowledge about service loads and environments, and difficulty of duplicating service loads and conditions in test... 

Number of chemical components Number of tanks in series Molar flow rate of component A Moles initially present Moles of component A Number of experimental data Rotational velocity of impeller Total moles in the system Nusselt number... 

Number of independent components = Number of chemical species —... 

PRINT "FOR EACH COMPONENT, INPUT THE COMPONENT NUMBER AND FLOW-RATE"... 

Lipid Fatty acid components Number of carbon atoms in fatty acid chain... 

For example, in distillation simulations the distillate and bottoms composition should be called XD(J) and XB(J) in the program. The tray compositions should be called X(NJ), where IV is the tray number starting from the bottom and J is the component number. Many computer scientists put all the compositions into one variable X(NJ) and index it so that the distillate is X(1J), the top tray is X(2J), etc. This gives a more compact program but makes it much more difficult to understand the code. 

More ordinary difl erential equations must be added per tray. We need one per component per tray. But this is easily programmed using doubly dimensioned variables X(N, J), where JV is the tray number and J is the component number. 

Three products (PI, P2, aod P3) and two slop cuts (SI and S2) are produced. The average composition of the products are 95 mole percent. The PI product is mostly the lightest component (component 1). The P2 product is mostly intermediate component (number 2) with some impurities of both the light and the heavy components. The final product P3 is what is left in the still pot and on the trays. The times to produce the various products and slop cuts are given in the results shown in Table 5.14. The total time for the batch distillation in this example is 6.4 hours. 

Number of total components to utilize Number of atoms in a specific component Number of ring atoms in a specific component Molecular weight... 

Next, the number of components, number of columns, and all physical data are read, followed by the two preset error-limits used by the program. prderr is the highest acceptable sum of component unbalances, and is expressed in moles, bdferr is the accuracy to which bubble-points, dew-points, and flashes are calculated, expressed as a fractional error. The authors have found a tight limit on this error is beneficial, and have commonly used 1 x 10 . 

Component number Component name Component abbreviation... 

According to the Gibbs phase rule (number of degrees of freedom = number of components - number of phases + 2 see Atkins, 1998), for a system containing a single chemical distributed between two phases at equilibrium, there is only one... 

Component number Overhead, mol/h Overhead, mol fraction Bottom, mol/h Bottom, mol fraction... 

J), BA(1,J), BA(2,J), BA(3,J). The 00(J) data input on each line is always the name of the component. BA(1,J) is always the critical pressure (in psia), and BA(2,J) is always the critical temperature (in °F). BA(3,J) is always the component acentric factor. Each line defines the data input for one component. Note also that the component number identifier, J, becomes the component s identifier in the next data input text box. 

Table 2 is similar to Table 1, with the exception of the different file form. Here the user chooses from Table 1 the components desired to run. The first item on each line is the consecutive number of the component, beginning with component number 1. The second item (separated by a comma) on each line is the component s ID taken from Table 1. The third and last item of each line is the respective component s mol/h flow rate to be used in the program. The following is a typical example ...

Make another text box on Form2 for viewing the feed input you made. See Fig. 9.12. Sizing this box as shown is suggested. This box should scroll and allow multiline viewing for each component chosen one line is dedicated for each component. Component number, component ID number, and the component mol/h flow rate will each be exhibited. If desired, the user may return to Forml and make changes to the feed... 

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