발간논문

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Vol.36, No.4, 567 ~ 575, 1998
Title
Intermediate Model Considering Particle Shape Effect on Gaseous Reduction of Iron Ore
강흥원 , 정우창 , 김용하 , 정원섭 , 정원배 Heung Won Kang , Uoo Chang Chung , Yong Ha Kim , Won Sub Chung , Won Bae Chung
Abstract
Thiele`s modulus for non-spherical particle was assumed by introducing non-spherical radius. Based on this assumed Thiele`s modulus, the intermediate (Ishida-Wen`s) model considering the particle shape effect was proposed. Using this model, gaseous reduction of iron oxide pellets of various shapes was analyzed. According to the analysis result, Thiele`s modulus for non-spherical particle was proportional to non-spherical radius as assumed while the rate parameters included in this model were the same as those of the spherical particle obtained under the same experimental condition. Therefore, it was concluded that the assumption of Thiele`s modulus for non-spherical particle was reasonable and the proposed model was practicable.
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