Comparison of optimization-regulation algorithms for secondary cooling in continuous steel casting

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F21%3APU138721" target="_blank" >RIV/00216305:26210/21:PU138721 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2075-4701/11/2/237" target="_blank" >https://www.mdpi.com/2075-4701/11/2/237</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/met11020237" target="_blank" >10.3390/met11020237</a>

Result language

angličtina

Original language name

Comparison of optimization-regulation algorithms for secondary cooling in continuous steel casting

Original language description

The paper presents the comparison of optimization-regulation algorithms applied to secondary cooling zone in continuous steel casting where the semi-product withdraws most of its thermal energy. In steel production, requirements towards obtaining defect-free semi-products are in-creasing day by day and the products, which would satisfy requirements of the consumers a few decades ago, are now far below the minimum required quality. To fulfill the quality demands towards minimum occurrence of defects in secondary cooling as possible, some regulation in the casting process is needed. The main concept of this paper is to analyze and compare the most known metaheuristic optimization approaches applied to the continuous steel casting process. Heat transfer and solidification phenomena are solved by using a fast 2.5D slice numerical model. The objective function is set to minimize the surface temperature differences in secondary cooling zones between calculated and targeted surface temperatures by suitable water flow rates through cooling nozzles. Obtained optimization results are discussed and the most suitable algorithm for this type of optimization problem is identified. Temperature deviations and cooling water flow rates in secondary cooling zone together with convergence rate and operation times needed to reach the stop criterium for each optimization approach are analysed and compared to target casting conditions based on a required temperature distribution of the strand. The paper also contains a brief description of applied heuristic algorithms. Some of the algorithms exhibited faster convergence rate than others, but the optimal solution was reached in every optimization run by only one algorithm.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20303 - Thermodynamics

Project

<a href="/en/project/GA19-20802S" target="_blank" >GA19-20802S: A coupled real-time thermo-mechanical solidification model of steel for crack prediction</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Metals

ISSN

2075-4701

e-ISSN

—

Volume of the periodical

11

Issue of the periodical within the volume

2

Country of publishing house

CH - SWITZERLAND

Number of pages

19

Pages from-to

1-19

UT code for WoS article

000622778600001

EID of the result in the Scopus database

2-s2.0-85100299693