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Calculation of View Factors in Electric Arc Furnace Process Modeling
Author(s) -
Hay Thomas,
Hernandez Jesus,
Roberts Suzanne,
Echterhof Thomas
Publication year - 2021
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.202000341
Subject(s) - process (computing) , representation (politics) , electric arc furnace , computer science , arc (geometry) , component (thermodynamics) , electric arc , process modeling , software , algorithm , mechanical engineering , work in process , engineering , physics , materials science , operations management , electrode , quantum mechanics , politics , political science , law , metallurgy , thermodynamics , programming language , operating system
The determination of view factors (VF) is a central component of the heat transfer model in comprehensive electric arc furnace process models. Due to the complex nature of the process, simplifying assumptions are necessary to allow the efficient estimation of VF. These simplifications mainly deal with the geometrical representation of the furnace and the methods to calculate the resulting VF. Such assumptions have been applied in several studies; however, while the results of the complete process models have been validated extensively, the calculated VF have not been examined in detail. Herein, two methods of calculating VF based on a geometry similar to that used in the process models proposed by MacRosty et al., Logar et al., and Meier et al. are presented and validated by comparing the results obtained using a commercial computational fluid dynamics software. The number of assumptions and simplifications is reduced when compared with previously published results and both methods are proven to be accurate while remaining computationally efficient enough for the application in process models for online applications and process optimization, where fast execution is necessary.