A Reduced-Order Model of Mould Heat Transfer in the Continuous Casting of Steel

Abstract

A reduced-order model (rom) of mould heat transfer in the continuous casting of steel is presented and demonstrated for several commercial mould geometries. The rom relies on a physically-based solution of the one-dimensional heat-conduction equation. The up-front cost of the rom is a single three-dimensional finite-element calculation of a small representative portion of the exact mould geometry, which is used to calibrate the geometric parameters of the rom. Specifically, the rom exactly matches the average hot and cold surface temperatures of the mould as computed in the snapshot model. Other features of the rom, namely predictions of the cooling water temperature change and thermocouple temperatures, are derived in a manner consistent with the one-dimensional solution. Combined with models of solidification and mould-metal interfacial phenomena, this accurate and efficient modelling tool can be applied to enable deeper insight into many different aspects of heat transfer and related phenomena in the continuous casting process.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Reduced-order model; Continuous casting; Mould heat transfer; Process modelling

International Standard Serial Number (ISSN)

0307-904X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2016 Elsevier, all rights reserved.

Publication Date

01 Oct 2016

Link to Full Text

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