Open AccessHeat transfer analysis of iron ore spherical pellet in the direct reduction process
Author(s) -
Anistasia Milandia,
Andinnie Juniarsih,
R. Muadz,
A. Sactianto
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1376/1/012037
Subject(s) - pellet , wüstite , hematite , iron ore , magnetite , agglomerate , iron oxide , materials science , direct reduced iron , iron powder , phase (matter) , metal , oxide , metallurgy , pelletizing , heat transfer , reduction (mathematics) , flux (metallurgy) , pellets , composite material , chemistry , thermodynamics , physics , geometry , mathematics , organic chemistry
The aim of iron ore direct reduction process is to convert iron oxide into metallic iron. The conversion of iron oxide into metallic iron occurs through saveral stages of intermediate phase. This intermediate phase included of hematite, magnetite and wustite. Temperatures is one of the important variables to ensure the trasformation of the phase completly. Generally in the direct reduction process, iron oxide process should be agglomerated into 1,5 cm – 2 cm in diameter spherical or cylindrical pellet. Agglomerates form, caused unevan temperatur distibutions within pellet inside. The objectives of this work is to observed energy and the rate of heat flux during reduction process so that intermadiate phase can be trasformed perfectly into metallic iron. To analize temperatur pellet inside, Ansys software was utilized to simulated iron ore direct reduction process. This simulation using agglomerate spherical form. Temperatures simulation take place at 900 into 1100 Celcius for 30 and 69 minute. This simulation also simulated carbon monoxide (CO) as reduction gas at 1 atm