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논문 기본 정보

자료유형
학술대회자료
저자정보
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한국연소학회 KOSCO SYMPOSIUM 논문집 제36회 KOSCO SYMPOSIUM 논문집
발행연도
2008.5
수록면
73 - 78 (6page)

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초록· 키워드

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A blast furnace can be modeled in a similar approach using a counter-current bed reactor. In the present study, an axi-symmetric two-dimensional steady state model is proposed to simulate the blast furnace process. It is assumed that only two phases (solid and gas phases) exist in the furnace. The charging material is treated as porous media constructed by coke and ore layers. The internal gas flow of the furnace is controlled by burden distribution owing to the different permeability of the two layers. For an understanding of the influence of the burden distribution on the operating conditions, the entire layer structure is predicted from the measured top layer structure and the solid flow is assumed according to the potential flow. Using this burden distribution, the flow, energy, and chemical species conservation equations are considered for each phase. In addition, the mass generation/consumption according to the reaction, heat transfer between the gas and the solid phases, and the reaction heat are reflected by source terms in the governing equations. For several Lo/Lc (layer thickness ratio of ore and coke layer) cases, layer structures are constructed and numerical simulations are conducted. The finite volume method was used for the numerical simulations. Through this approach, the flow, composition and temperature within the furnace are predicted by the model.

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ABSTRACT
1. Introduction
2. Modeling
3. Result
4. Conclusion
Acknowledgment
References

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