Page 204 - Chemical engineering design
P. 204

FLOW-SHEETING
                     Step 3: Make a copy of the identity matrix, one for each component. For this problem
                   there are 4 components so 4 copies are needed.                         181
                     Step 4: Copy the appropriate split-fractions and fresh feeds from the table of split-
                   fractions and fresh feeds, Figure 4.15, into the component matrices, Figure 4.17. Copy
                   the cell references, not the actual values. Using the cell references ensures that subsequent
                   changes in the values in the primary table, Figure 4.15, will be copied automatically to
                   the appropriate matrix.
                     For example, in Figure 4.17 the contents of cell F72 are (F15), not  0.05.

                     A] ... .. .. .A/.. ... .. .B/.. .. ... .C/.. .. ... .D/.. .. ... .E/.. .. .. ..F/... ... ..G/... ... ..H
                     31
                     32
                     33         Matrix equations
                     34
                     35         k D 1
                     36
                     37              1        2       3       4       5        g       Flows
                     38
                     39    1        1.00     0.00    0.00    0.00    0.99    100.00    110.85
                     40    2        0.10     1.00    0.00    0.00    0.00      0.00     11.09
                     41    3        0.00    0.10     1.00    0.00    0.00      0.00      1.11
                     42    4        0.00    0.90     0.99    1.00    0.00      0.00     11.07
                     43    5        0.00     0.00    0.00    0.99    1.00      0.00     10.96
                     44
                     45
                     46         k D 2
                     47
                     48              1        2       3       4       5        g       Flows
                     49
                     50    1        1.00     0.00    0.00    0.00    0.01      0.00      0.01
                     51    2        1.00     1.00    0.00    0.00    0.00     98.00     98.01
                     52    3        0.00    0.20     1.00    0.00    0.00      0.00     19.60
                     53    4        0.00    0.80     0.99    1.00    0.00      0.00     97.81
                     54    5        0.00     0.00    0.00    0.01    1.00      0.00      0.98
                     55
                     56
                     57         k D 3
                     58
                     59              1        2       3       4       5        g       Flows
                     60
                     61    1        1.00     0.00    0.00    0.00    1.00      0.00      0.00
                     62    2        1.00     1.00    0.00    0.00    0.00     98.00     98.00
                     63    3        0.00    1.00     1.00    0.00    0.00      0.00     98.00
                     64    4        0.00     0.00    0.00    1.00    0.00      0.00      0.00
                     65    5        0.00     0.00    0.00    1.00    1.00      0.00      0.00
                     66
                     67
                     68         k D 4
                     69
                     70              1        2       3       4       5        g       Flows
                     71
                     72    1        1.00     0.00    0.00    0.00    0.05      0.00     10.31
                     73    2        1.00     1.00    0.00    0.00    0.00      0.00     10.31
                     74    3        0.00    0.05     1.00    0.00    0.00    200.00    200.52
                     75    4        0.00    0.95     0.99    1.00    0.00      0.00    208.31
                     76    5        0.00     0.00    0.00    0.99    1.00      0.00    206.22
                     77
                     78
                                                    Figure 4.17.
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