Optimization of the ironmaking-steelmaking sequence in an integrated steel plant having non-linear and distributed elements

Ray, W. Harmon; Szekely, J.; Ajinkya, M. B.

doi:10.1007/bf02668015

Cited by 1 publication

(2 citation statements)

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“…A unit based description of the steel plant. Adapted by permission from Springer Nature Customer Service Centre GmbH: Springer Nature, Metallurgical Transactions, 2013, ref .…”

Section: Illustrative Examplesmentioning

confidence: 99%

“…Steel-Making Process. We consider the steel-making plant depicted in Figure 11 taken from Ray et al 26 There are two blast furnaces (BF-1 and BF-2), one oxygen furnace (BOF), one open hearth shop (OH), and a storage tank for scraps. Also, in the description of the plant, two virtual hubs (Hub-1 and Hub-2) have been introduced for the distribution of material between the different equipment (see Figure 12).…”

Section: Illustrative Examplesmentioning

confidence: 99%

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Internal Modifier Adaptation for the Optimization of Large-Scale Plants with Inaccurate Models

Papasavvas

François

2019

Ind. Eng. Chem. Res.

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Modifier adaptation (MA) methods are iterative model-based real-time optimization (RTO) methods with the proven ability to reach, upon converge, the unknown optimal steady-state operating conditions of a plant despite plant-model mismatch and disturbances. So far, MA has been applied to small-scale but never-to the best of the authors' knowledge-to large-scale systems, the optimization of which being, in practice, a very difficult engineering problem. While standard MA uses plant measurements of the cost and constraints only, in this article, a new MA approach is proposed, namely Internal Modifier Adaptation (IMA), which allows the use of all available plant measurements leading to corrections at the level of the inner structure of the model. This article also provides a mathematical proof that IMA preserves the property of MA methods to reach the optimal inputs of the plant upon convergence. The application and the benefits of the proposed method are illustrated through two large-scale simulated case studies: (i) a steel-making plant, and (ii) the Tennessee Eastman challenge problem.

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“…A unit based description of the steel plant. Adapted by permission from Springer Nature Customer Service Centre GmbH: Springer Nature, Metallurgical Transactions, 2013, ref .…”

Section: Illustrative Examplesmentioning

confidence: 99%

Section: Illustrative Examplesmentioning

confidence: 99%