Siting factors, process plant building

Equation (3.24) requires that the production volume allocated to a plant does not exceed technical capacity of the plant. Capacity consumption factors are site-specific to account for productivity differences and time dependent to allow for discrete process improvement projects. A plant s technical capacity is calculated by multiplying the number of production lines installed with the capacity per line (3.25). It can be varied between a lower and an upper bound (3.26). Restriction (3.27) states that from each plant class only one plant can be open at a site. The rationale behind this restriction is that only one plant type (size and degree of automation combination) should be put in place at a given site and capacity can be adjusted via the number of production lines. It is not implied that all production lines necessarily have to be in one building. For sites with utility capacity restrictions, constraint (3.28) ensures the available capacity is not exceeded. 

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