Analysis of HEN Resilience

In this section, general mathematical formulations and graphic interpretations are presented for several resilience analysis problems (1) feasibility test, (2) resilience (flexibility) test, (3) flexibility index, and (4) resilience index. [Pg.11]

The physical performance of a HEN can be described by the following set of constraints (Grossmann and Floudas, 1987) [Pg.11]

For a given HEN design d and for any realization of 8 during operation, the state variables can in general be expressed as an implicit function of control variables z using equalities h, [Pg.12]

This allows elimination of the state variables, and the HEN performance specifications can be described with the following reduced set of inequality constraints [Pg.12]

A HEN is feasible for assumed, fixed values of uncertain variables 8 if control variables z can be found to satisfy the reduced set of constraints. The HEN feasibility test can be formulated as follows to minimize the maximum constraint violations (Halemane and Grossmann, 1983) [Pg.12]

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