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Reaction Invariant Balances in a System of Units

Let us again consider a system of units such as in Chapter 3. With (4.2.7) introduced into (4.3.1) we have, in the n-th node [Pg.79]

Recall also that according to the Remark to Section 4.4, by (4.4.5) we have [Pg.80]

In the same manner as in Section 4.2, we generally introduce certain additional conditions such as (4.2.14), to obtain the whole set of constraints. [Pg.80]

The equations can be rewritten in different other manners. A simple modification consists in introducing the sets E, as in (4.2.14). TTien the components (n) of vector n(n) read [Pg.80]

Thus the vector equations (4.5.9a) are written for each n e T (nodes that are not splitters). For the splitters s g S, we have the scalar equations (4.5.9 b and c). We take k = I, , K and for each k, write the equations (4.5.9b) only for such s that j, G Ek (the split streams contain component Q) the equations (4.5.9b) are then written for each j g (streams obtained by splitting the input stream ). Finally, for each S we have the equation (4.5.9c). [Pg.81]


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