Optimization of Quality of Continuously Cast Steel Slabs by Using Firefly Algorithm

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F11%3APU93185" target="_blank" >RIV/00216305:26210/11:PU93185 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Optimization of Quality of Continuously Cast Steel Slabs by Using Firefly Algorithm

Original language description

An ambition to increase both the productivity and the final product quality, in continuous casting process, led us to study new effective mathematical approaches. The quality of steel produced by continuous casting process is influenced by number of controlled factors as a casting speed or cooling rates. Appropriate setting of these factors is usually done by expert estimates and expensive experimental runs. This paper describes an algorithm for obtaining black-box type solution which maintains high production rate and high quality of products as well. The core of the algorithm is our original numerical model of 2D temperature field designed for real caster geometry. This mathematical model contains Fourier-Kirchhoff equation, including boundary conditions. The presence of phase and structural changes is modeled by an enthalpy computed from chemical composition of steel. The optimization part is performed by recently created heuristic method, so-called Firefly algorithm, where the principles of searching for optimal values are inspired by biological behavior of fireflies. By combining the numerical model and heuristic optimization we are able to set the controlled values and to obtain high quality steel which satisfies constrains for prescribed metallurgical length, core and surface temperatures. This approach can be easily utilized for arbitrary class of steel only by changing chemical composition in the numerical model. The results of simulations can be validated by real historical data in purpose to reach relationship between temperature field and final product quality.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2011

Confidentiality

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

Name of the periodical

Materiali in tehnologije

ISSN

1580-2949

e-ISSN

—

Volume of the periodical

45

Issue of the periodical within the volume

4

Country of publishing house

SI - SLOVENIA

Number of pages

4

Pages from-to

347-350

UT code for WoS article

000294086000009

EID of the result in the Scopus database

—