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Process simulation of cupola

Viswanathan, NN and Srinivasan, MN and Lahiri, AK (1998) Process simulation of cupola. In: ISIJ International, 38 (10). pp. 1062-1068.

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Cupola is a counter current shaft reactor for production of cast iron. The solid charge consisting of coke, pig iron, steel scrap and flux is fed from the top of the reactor and blast is blown radially through the tuyeres. One-dimensional (1-D) models, wherein the governing equations are solved along the axial direction, have been reported in the literature. However, because of radial entry of blast through the tuyeres, incorporation of boundary conditions at the tuyere level poses a major difficulty in l-D models. In this paper, a pseudo 2-D model for cupola has been proposed in which, the governing equations are employed in 2-D at the tuyere level and l-D in the remaining portion. The solution of 2-D equations at the tuyere level generates the appropriate boundary conditions for the remaining l-D portion above the tuyeres. In order to evaluate the performance of the pseudo 2-D model, a 2-D model was also developed. Further, the two models have been validated using reported experimental data. The study shows that the overall temperature and composition distributions obtained from the pseudo 2-D model are quite comparable with that obtained from the 2-D model. Also, the pseudo 2-D model was found to be computationally faster compared to the 2-D model. Hence, for practical design and operation exercise, pseudo 2-D model can be effectively used.

Item Type: Journal Article
Publication: ISIJ International
Publisher: Japan Science and Technology Information Aggregator, Electronic
Additional Information: Copyright of this article belongs to Japan Science and Technology Information Aggregator, Electronic.
Keywords: cupola;counter current;shaft;reactor;mathematical;model; simulation;pseudo 2-D blast;tuyere, melting;cast iron.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 21 Dec 2009 11:26
Last Modified: 19 Sep 2010 05:26
URI: http://eprints.iisc.ac.in/id/eprint/19098

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