Prove a base case for the problem.
The optimum area from the proposed formulation is compared with the results obtained from the integrated optimization algorithm of EES (from F-Chart) and the base cases for different annual operation time.
The RGA analysis performed for the base case operation of this process was compared to an uncertain RGA analysis that takes into account the uncertainty on the process gains for control structure selection.
For the base case operation of column 2, which is summarized in Table 1, Fig. 5 shows CGCC (stage-H), exergy loss profiles, and hydraulic analysis.
Figure 3 shows the stage-H CGCC, exergy loss profiles, and hydraulic analysis for the base case operations Open image in new window Fig. 3 Base case operation for column 1 with: N = 50; NF1 = 25, NF2 = 15, NF3 = 10; RR = 0.65; N: number of total stages; NF1, NF2, NF3 are the feed stages, and RR is the reflux ratio.
Table 4 compares the sustainability metrics for the base case and modified case operations for column 2. As seen, the duties and cost of energy are decreased in the reboiler side, while the condenser duty is increased due to heating the feed.
Tables S4 and S5 in supplementary data compare the sustainability indicators and metrics, respectively, for the base case and modified case operations.
Table S5 in supplementary data compares the sustainability indicators, while Table 3 compares the sustainability metrics, which are normalized values with respect to unit mass of products for both the base case and modified case operations.
Numerical case studies compare the performance of the four models and analyze their distinct characteristics for the market economic operation (such as locational marginal prices (LMP), regret costs, and base case costs) and system secure operation (such as load shedding (LS) quantities and Do-Not-Exceed (DNE) limits of power systems under uncertainties.
For the base case, when there is a single duplicate operation, there is no non-overlap property to show.
