(365a) Feedback State-Space Mapping Framework for Dynamic Operability Analysis
AIChE Annual Meeting
Tuesday, November 15, 2022 - 3:30pm to 5:00pm
The proposed dynamic operability mapping framework consists of three components: the AOS inspector, the AIS divider, and the merger of the AOS from the previous time with the AIS. Specifically, the AOS inspector evaluates if the current input-output combinations are approximately accurate to the real AOS when all input combinations are mapped to the output space. In case the AOS inspector gauges that the current AOS is not sufficiently precise, the AIS divider systematically generates more input-output combinations based on the current AOS. This feedback process is repeated until an accuracy tolerance is reached. To reduce computational effort, the merger component creates a set of bounding boxes to find the tightest overestimation of the current AOS before merging it with the AIS for the following time step mapping.
A dynamic operability analysis of a Fischer-Tropsch process is provided to demonstrate the application of the proposed framework. The Fischer-Tropsch bubble column reactor is simulated using a reduced-order model with dynamic discrepancy . Monte Carlo simulations are then employed to confirm the accuracy of the proposed framework.
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