Thermal Monitoring of an Electric Arc Furnace Burner Block using Fiber-Optic Sensors

Abstract

Modern electric arc furnace (EAF) steelmaking employs gas burner and injector systems to assist scrap melting and deliver oxygen and carbon for refining and slag foaming. Factors such as scrap distribution, injector blowback, and slag foaming can affect the burner block face temperature. This study employs Rayleigh back scattering (RBS) based optical frequency domain reflectometer (OFDR) fiber-optic sensing technology to monitor the temperature of a Linde Fluidic CoJetTM burner block in a DC EAF. The aim is to detect thermal signatures related to EAF operating conditions that affect the burner block temperature. Fiber-optics sensors based on Rayleigh backscattering were installed inside the burner block to collect temperature data during EAF operation. The fiber optic sensors are able to monitor distributed temperature across the burner during different operation modes and can also detect local hot spots precisely.

Department(s)

Electrical and Computer Engineering

Second Department

Materials Science and Engineering

Comments

U.S. Department of Energy, Grant DE-EE0009392

Keywords and Phrases

EAF Burner; EAF steelmaking; Fiber Optic Sensors; Rayleigh sensor; Spatial Resolution; Temperature Monitoring

International Standard Book Number (ISBN)

978-093076737-2

International Standard Serial Number (ISSN)

1551-6997

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 Association for Iron and Steel Technology, All rights reserved.

Publication Date

01 Jan 2025

Link to Full Text

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