Distributed Temperature Monitoring of Tundish Refractory Lining Using Optical Fiber Sensors

Distributed temperature monitoring can provide insights into thermal conditions in the continuous caster tundish that affect operating stability and cast quality, such as pre-heat, superheat, fill height, and refractory wear. In this study, fiber optic sensors were embedded into the refractory lining of a lab-scale tundish to record temperature profiles during dry-out, pre-heating and direct molten steel exposure. Additional trials were performed with fiber optic sensors embedded in an industrial tundish. The results demonstrate that fiber optic sensors using Rayleigh and FBG technology can provide accurate distributed provide accurate temperature measurement in refractory vessels and provide insight about the process.

Hanok Tekle | Missouri University of Science and Technology
 

Muhammad Roman | Missouri University of Science and Technology
 

Rex E. Gerald, II | Missouri University of Science and Technology
 

Ronald O'Malley | Missouri University of Science and Technology
 

Jie Huang | Missouri University of Science and Technology
 

Todd Sander | Missouri University of Science and Technology
 

Jeffrey D. Smith | Missouri University of Science and Technology
 

Dinesh Reddy | Missouri University of Science and Technology