Commenced in January 2007
Paper Count: 31103
Investigation of the Cooling and Uniformity Effectiveness in a Sinter Packed Bed
Abstract:When sinters are filled into the cooler from the sintering machine, and the non-uniform distribution of the sinters leads to uneven cooling. This causes the temperature difference of the sinters leaving the cooler to be so large that it results in the conveyors being deformed by the heat. The present work applies CFD method to investigate the thermo flowfield phenomena in a sinter cooler by the Porous Media Model. Using the obtained experimental data to simulate porosity (Ε), permeability (κ), inertial coefficient (F), specific heat (Cp) and effective thermal conductivity (keff) of the sinter packed beds. The physical model is a similar geometry whose Darcy numbers (Da) are similar to the sinter cooler. Using the Cooling Index (CI) and Uniformity Index (UI) to analyze the thermo flowfield in the sinter packed bed obtains the cooling performance of the sinter cooler.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1124263Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1382
 J. Patrick, R. Barranco, “Carbon Deposits: Formation, Nature, and Characterisation”, COMA/CRF Meeting, United Kingdom, 2006.
 V. Krebs, F. Mareche, G. Furdin, D. Dumay, “Contribution to the Study of Carbon Deposition in Coke Ovens”, Fuel, Vol. 73, No. 12, 1994, pp. 1904-1910.
 Z.J. Hu, K.J. Huttinger, “Mechanisms of Carbon Deposition-a Kinetic Approach”, Carbon, Vol. 40, No. 4, 2002, pp. 624-628.
 K. Norinaga, K.J. Huttinger, “Kinetics of Surface Reactions in Carbon Deposition from Light Hydrocarbons”, Carbon, Vol. 41, No. 8, 2003, pp. 1509-1514.
 Y. Z. Fang, P. Huang, Z. Zhang, Y.P. Cao, M.L. Jin, “Analysis on the Growth Mechanism of Carbon Deposits in Coke Oven”, Clean Coal Technology, Vol. 17, No. 5, 2011, pp. 36-39. (In Chinese)
 Z. Z. Wang, Z. F. Zhan, W. D. Wang, W. D. Zhang, X. Q. Zhang, H. S. Wang, “Analysis and Research on Coal Moisture Control Technology”, Applied Energy Technology, No. 3, 2014, pp. 5-9. (In Chinese)
 A. Furusawa, T. Nakagawa, Y. Maeno, I. Komaki, “Influence of Coal Moisture Control on Carbon Deposition in the Coke Oven Chamber”, ISIJ, Vol. 38, No. 12, 1998, pp. 1320-1325.
 V. Krebs, G. Furdin, J.F. Mareche, D. Dumay, “Effects of Coal Moisture Content on Carbon Deposition in Coke Ovens”, Fuel, Vol. 75, No. 8, 1996, pp. 979-986.
 T. Nakagawa, T. Kudo, Y. Kamada, T. Suzuki, Y.Suzuki, I. Komaki, “Control of Carbon Deposition in the Free Space of Coke Oven Chamber by Injecting Atomized Water”, ISIJ, Vol. 68, No. 7, 2002, pp. 386-392.
 V. Zymla, F. Honnart, “Coke Oven Carbon Deposits Growth and Their Burning Off”, ISIJ, Vol. 47, No. 10, 2007, pp. 1422-1431.
 C. Z. Lu, Y. P. Cao, “Study on Properties of Carbon Deposite in Coking Chamber and its Reaction Kinetics with Air”, Fuel & Chemical Processes, Vol. 41, No. 1, 2010, pp. 15-18.
 S. R. Turns, An Introduction of Combustion Concepts and Applications, 3rd Ed., McGraw Hill, 2012.
 H. S. Caram, N. R. Amundson, “Diffusion and Reaction in a Stagnant Boundary Layer about a Carbon Particle”, Ind. Eng. Chem., Fundam., Vol. 16, No. 2, 1977, pp. 171-181.
 G. Adomeit, W. Hocks, K. Henriksen, “Combustion of a Carbon Surface in a Stagnation Point Flow Field”, Combustion and Flame, Vol. 59, 1985, pp. 273-288.
 F. Yi, J. Fan, D. Ki, S. Lu, K. Luo, “Three-dimensional Time-dependent Numerical Simulation of a Quiescent Carbon Combustion in Air”, Fuel, Vol. 90, 2012, pp. 1522-1528.
 P. A. Nikrityuk, M. Grabner, P. Kestel, B. Meyer, “Numerical Study of the Influence of Heterogeneous Kinetics on the Carbon Consumption by Oxidation of a Single Coal Particle”, Fuel, Vol. 114, 2013, pp. 88-98.
 L. X. Zhou., Combustion Theory and Chemical Fluid Dynamics, Science Press, Moscos, 1986.
 B. F. Magnussen, B. H Hjertager, “On Mathematical Modeling of Turbulent Combustion with Special Emphasis on Soot Formation and Combustion” Symposium (Int.) on Combustion, Vol. 16, 1977, pp. 719-729.
 T. H. Shih, W. W. Liou, A. Shabbir, Z. Yang, J. Zhu, "A New k-ε Eddy-viscosity Model for High reynolds Number Turbulent Flows – Model Development and Validation," Computer Fluids, vol. 23, 2012, pp. 227-238.
 K. K. Kuo, Principle of combustion. New York: John Wiley and Sons, 1986.
 P. Cheng, "Two-dimensional radiating gas flow by a moment method," AIAA Journal, vol. 2, 1964, pp. 1662-1664.
 T. F. Smith, Z. F. Shen, and J. N. Friedman, "Evaluation of coefficients for the weighted sum of gray gases model," J. Heat Transfer, vol. 104, 1982, pp. 602-608.
 P. Forchheimer, “Water Movement through Soil,” Time Ver. German Ing. Vol. 45, 1901, pp. 1782-1788.
 M. Kaviany, “Principle of Heat Transfer in Porous Media,” Second Edition, Springer-Verlag New York, 1995
 Kline SJ, Mcclintock FA (1953). Describing Uncertainties in Single-Sample Experiments. Mechanical Engineering 75:3-8.
 R.J. Moffat, “Contributions to the Theory of Single-sample Uncertainty Analysis,” ASME Journal of Fluid Engineering, Vol. 104, 1986, pp. 250-260.