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Heat Transfer Research
インパクトファクター: 1.199 5年インパクトファクター: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018026547
pages 501-517

HEAT TRANSFER OPTIMIZATION OF BLAST FURNACE STAVE BASED ON ENTRANSY DISSIPATION AND ENTROPY GENERATION ANALYSIS

Xun Xu
Nantong University Xinglin College, Jiangsu Nantong 226000, The People's Republic of China; Department of Thermal Engineering, School of Mechanical Engineering, TongJi University, Shanghai, 201804, The People's Republic of China
Lijun Wu
Department of Thermal Engineering, School of Mechanical Engineering, TongJi University, Shanghai, 201804, The People's Republic of China

要約

The entransy dissipation and entropy generation of a blast furnace stave are analyzed. The cooling capacity coefficient, entropy production, and performance coefficient of a blast furnace stave are defined and calculated. The influence of structural parameters of the blast furnace stave on the cooling capacity coefficient, entropy production, and performance coefficient is discussed. The results show that reducing the distance from a cooling water pipe to a hot surface or reducing the thickness of inlaid brick will increase the cooling capacity of the stave, and this increase is greater than that of the available energy loss, the performance coefficient of the stave increases. On the other hand, increasing the radius of the cooling water pipe or reducing the cooling pipe spacing will increase the cooling capacity of the stave too, but this increase is less than that of the available energy loss, the performance coefficient of the stave decreases. In the structural optimization design of a blast furnace stave, the selection should follow the order shown below, reducing the distance from the cooling water pipe to the hot surface, reducing the thickness of the inlaid brick, increasing the radius of the cooling water pipe, and reducing the cooling pipe spacing. The results of this paper provide a theoretical basis for optimizing the performance of the blast furnace stave.


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