An Estimation of Thermal Stress within the Coal Briquette during Carbonization.
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概要
- 論文の詳細を見る
A thermal stress analysis within a coal briquette is performed with various heating patterns in order to simultaneously make the raeduction of heat consumption rate and the enhancement of formed coke quality. The single briquette is charged into the small oven, which is purged of air and filled with nitrogen gas. The oven is then placed in the X-ray CT equipment and heated by the prescribed heating pattern to continuously oberve the crack formation behavior of the briquette. The thermal stress analysis model which previously developed by authors is used to estimate the stress distribution within the briquette in this study. The effects of creep characteristics of the plastic and semi-coke layer, dilatation of the plastic layer and the pyrolytic reaction fraction dependence of thermophysical properties are considered in this model. The calculated stress distribution and deformation behavior in the briquette are compared with experimental observation results by X-ray CT. The results show that the model used in this study can quantitatively predict the stress distribution within the briquette and the model is an effective tool to investigate the high performance formed coke making process.
- The Iron and Steel Institute of Japanの論文
著者
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Goto Kazuya
Department Of Applied Chemistry Faculty Of Engineering Kyushu University
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Miura Takatoshi
Department Of Biochemistry And Engineering Tohoku University
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Komaki Ikuo
Process Technology Research Laboratories Nippon Steel Corp
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Aoki Hideyuki
Department Of Applied Microbial Technology Kumamoto Institute Of Technology
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Kato Kenji
Process Technology Research Laboratories Nippon Steel Corp
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Goto Kazuya
Department of Biochemistry & Engineering, Tohoku University
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Ueda Aritaka
Department of Biochemistry & Engineering, Tohoku University
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Komaki Ikuo
Process Technology Laboratories, Nippon Steel Corporation
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Kato Kenji
Process Technology Laboratories, Nippon Steel Corporation
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Miura Takatoshi
Department of Biochemistry & Engineering, Tohoku University
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