Faster Dynamic Process Simulation using In Situ Adaptive Tabulation

作者：Abrol Sidharth^*; Lu Mingder; Hill David; Herrick Aaron; Edgar Thomas F

来源：Industrial & Engineering Chemistry Research, 2010, 49(17): 7814-7823.

DOI：10.1021/ie901755f

In situ adaptive tabulation (ISAT) is applied to dynamic process simulators for reducing computational run-time. Several enhancements of previous approaches are presented here, including a method for estimating the sensitivities using input output data, along with different strategies for record distribution. A modified version of the original algorithm (mISAT) to improve performance of ISAT is also suggested. Case studies for first-principles and data-driven models using ISAT are performed to generate accurate trajectories, which are essentially the same as those obtained by direct integration. Computational speed-up using ISAT is also shown for these studies.

• 出版日期2010-9-1