Derivation of CaO-SiO2-Al2O3system slag viscosity equation by GP

Slag viscosity is essential in high-temperature metallurgical processes. However, a slag viscosity model is difficult to exactly interpret as it has a strong nonlinear relation with its composition and temperature. In this paper, genetic programming (GP) was employed to derive a CaO-SiO2-Al2O3 slag...

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Autores principales:	Ri S.-C., Ra J.-H., Ryom K.-C.
Formato:	article
Lenguaje:	EN
Publicado:	Technical Faculty, Bor 2021
Materias:	slag viscosity equation genetic programming prediction Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/c9008a61cd644adfae283bfd5ec0ab05
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spelling	oai:doaj.org-article:c9008a61cd644adfae283bfd5ec0ab052021-11-22T11:04:01ZDerivation of CaO-SiO2-Al2O3system slag viscosity equation by GP1450-53392217-717510.2298/JMMB190919027Rhttps://doaj.org/article/c9008a61cd644adfae283bfd5ec0ab052021-01-01T00:00:00Zhttp://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100027R.pdfhttps://doaj.org/toc/1450-5339https://doaj.org/toc/2217-7175Slag viscosity is essential in high-temperature metallurgical processes. However, a slag viscosity model is difficult to exactly interpret as it has a strong nonlinear relation with its composition and temperature. In this paper, genetic programming (GP) was employed to derive a CaO-SiO2-Al2O3 slag viscosity equation. The equation was automatically described as a simple algebraic equation with the basicity and content of Al2O3 and temperature. The average relative error between the values obtained by the equation and the experimental data used for its derivation was as low as 17.1%. Computer simulations were performed to evaluate the accuracy of the derived viscosity equation and were then compared with many experimental viscosities and calculated values of other researchers. Slag compositions and temperatures for simulation calculations were the experimental data which were not used for deriving a viscosity equation. The results showed that the viscosity equation was relatively exact. The viscosities of CaO-SiO2-Al2O3 system slag could be simply and expediently predicted within the wide range of compositions and temperatures by using the derived viscosity equation.Ri S.-C.Ra J.-H.Ryom K.-C.Technical Faculty, Borarticleslagviscosity equationgenetic programmingpredictionMining engineering. MetallurgyTN1-997ENJournal of Mining and Metallurgy. Section B: Metallurgy, Vol 57, Iss 3, Pp 309-317 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	slag viscosity equation genetic programming prediction Mining engineering. Metallurgy TN1-997
spellingShingle	slag viscosity equation genetic programming prediction Mining engineering. Metallurgy TN1-997 Ri S.-C. Ra J.-H. Ryom K.-C. Derivation of CaO-SiO2-Al2O3system slag viscosity equation by GP
description	Slag viscosity is essential in high-temperature metallurgical processes. However, a slag viscosity model is difficult to exactly interpret as it has a strong nonlinear relation with its composition and temperature. In this paper, genetic programming (GP) was employed to derive a CaO-SiO2-Al2O3 slag viscosity equation. The equation was automatically described as a simple algebraic equation with the basicity and content of Al2O3 and temperature. The average relative error between the values obtained by the equation and the experimental data used for its derivation was as low as 17.1%. Computer simulations were performed to evaluate the accuracy of the derived viscosity equation and were then compared with many experimental viscosities and calculated values of other researchers. Slag compositions and temperatures for simulation calculations were the experimental data which were not used for deriving a viscosity equation. The results showed that the viscosity equation was relatively exact. The viscosities of CaO-SiO2-Al2O3 system slag could be simply and expediently predicted within the wide range of compositions and temperatures by using the derived viscosity equation.
format	article
author	Ri S.-C. Ra J.-H. Ryom K.-C.
author_facet	Ri S.-C. Ra J.-H. Ryom K.-C.
author_sort	Ri S.-C.
title	Derivation of CaO-SiO2-Al2O3system slag viscosity equation by GP
title_short	Derivation of CaO-SiO2-Al2O3system slag viscosity equation by GP
title_full	Derivation of CaO-SiO2-Al2O3system slag viscosity equation by GP
title_fullStr	Derivation of CaO-SiO2-Al2O3system slag viscosity equation by GP
title_full_unstemmed	Derivation of CaO-SiO2-Al2O3system slag viscosity equation by GP
title_sort	derivation of cao-sio2-al2o3system slag viscosity equation by gp
publisher	Technical Faculty, Bor
publishDate	2021
url	https://doaj.org/article/c9008a61cd644adfae283bfd5ec0ab05
work_keys_str_mv	AT risc derivationofcaosio2al2o3systemslagviscosityequationbygp AT rajh derivationofcaosio2al2o3systemslagviscosityequationbygp AT ryomkc derivationofcaosio2al2o3systemslagviscosityequationbygp
_version_	1718417761640644608

Derivation of CaO-SiO2-Al2O3system slag viscosity equation by GP

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