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Direct Reduction is one of the process to converted iron ore 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. Iron ore direct reduction is the process involved high temperature it is because temperatures will provide heat energy. Sufficient heat energy will ensure all stages of converted phase completely reacted. To analize heat energy inside of the speciemen, Ansys software was utilized to simulated iron ore direct reduction process. This simulation using agglomerate spherical and cilindrical 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.