<p>Electric arc furnace (EAF) is a
furnace that utilizes electric energy and chemical energy to melt scraps and
produce liquid steel. During the industrial process of EAF, an electric arc
will be generated around the electrode located at the center of the furnace,
and this phenomenon will generate a lot of heat. If any part of the electric
arc is exposed to the freeboard region, a region above the slag layer inside
the furnace, the heat emitted by this exposed arc can significantly heat on
side wall temperatures, resulting in an overheating issue of side wall. Water-cooling
panels (WCP) have been used to cool down the side wall, but the concentrated
overheating area, may damage the water-cooling panel. In this study, a
combination of slag foaming phenomenon and electric arc has been considered. A
calculator is developed based on several arc models to calculate the parameters
about slag foaming and arc power. The parameters can be used as input in a
computational fluid dynamics (CFD) model. The commercial software, ANSYS FLUENT<sup>®</sup>, was utilized to give a prediction
of the side wall temperature distribution of an EAF. Data from the plant has
been used to validate the calculation results. Furthermore, a series of
parametric studies has been investigated to study the influence of operating
conditions. The developed model can help to predict the risk of overheating from
given electrode conditions and slag compositions.</p>
| Identifer | oai:union.ndltd.org:purdue.edu/oai:figshare.com:article/17161763 |
| Date | 20 December 2021 |
| Creators | Qingxuan Luo (11825660) |
| Source Sets | Purdue University |
| Detected Language | English |
| Type | Text, Thesis |
| Rights | CC BY 4.0 |
| Relation | https://figshare.com/articles/thesis/Numerical_Study_of_Arc_Exposure_about_Water-Panel_Overheating_in_an_Electric_Arc_Furnace/17161763 |
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